What does a thread limit plug gauge check?
A thread limit plug gauge checks whether internal threads meet dimensional tolerances by using a go/no-go principle: the go side must fully enter the thread, the no-go side must not. For beginners this answers the basic application question and shows how such gauges quickly verify if a part is within spec. They are widely used in machining and serial production to ensure reliable quality control.
Combining hardened steel construction, conformity to DIN 7162 and a deliberate wear allowance on the go side, this limit plug gauge delivers reproducible go/no‑go checks and extended service life in routine inspection tasks. Order the gauge directly via Metav Werkzeuge or contact our consultants for application guidance. Limit plug gauge — 1.5 mm, hardened steel (Filetta) A precision limit plug gauge intended for fast go/no‑go inspection of bore tolerances in workshop and production quality control. Hardened steel construction Conforms to DIN 7162 Wear allowance on the go side Precision Ø 1.5 mm Dependable go/no‑go inspection for production The Filetta limit plug gauge is built to provide consistent go/no‑go verification, enabling quick decisions on part conformity during serial production. Manufactured from hardened steel, the mandrel maintains contact geometry under repeated use, which supports reproducible results and reduces rework. Conformity with DIN 7162 ensures the gauge fits established tolerance schemes and can be integrated into existing inspection plans. Using a dedicated gauge pin for marker checks reduces measurement time compared with micrometre setups and simplifies operator training. Designed to resist wear and maintain accuracy A defining attribute is the wear allowance on the go side, which compensates for material loss during service and preserves the functional limit for a longer interval. This design choice delays the need for replacement while keeping the no‑go boundary stable, so inspection reliability is retained across production runs. The compact Ø 1.5 mm size is suitable for small bores and tight tolerances where a stiff, well‑finished pin is required. The result is lower total cost of ownership through extended service life and fewer unscheduled gauge changes. Quick integration into metrology workflows As a standardised gauge pin, this tool fits easily into bench inspection, go/no‑go fixtures and fixture verification routines. The simple geometry makes it suitable for use in pneumatic or manual checking stations and for rapid operator checks on the shop floor. Documentation and process planning benefit from the DIN 7162 reference, enabling clear pass/fail criteria in quality records. For workshops seeking a robust, compact checking instrument, the gauge pin accelerates inspection without sacrificing traceability or repeatability. Specify Filetta limit plug gauges through Metav Werkzeuge to standardise go/no‑go testing; contact our technical advisors at Metav Werkzeuge in Emmerich by email at info@metav-werkzeuge.com or by telephone at +49 2822 7131930 Technical Data SKU: MS911.159 Brand: Filetta Article: Limit plug gauge Facts Diameter: 1.5 mm Material: Hardened steel Standard: DIN 7162 Special features Wear allowance on the go side Category: Gauge pins / limit gauges Application: Go/no‑go inspection FAQ What is the primary use of this gauge? The limit plug gauge MS911.159 (Filetta limit plug gauge) is intended for rapid go/no‑go checks of bore tolerances in production and workshop quality control. What does the wear allowance on the go side mean? The wear allowance provides a designed margin on the go face so the functional acceptance limit remains reliable over prolonged use, extending the service life of the gauge pin. Which standard does the gauge comply with? This gauge conforms to DIN 7162, which defines the geometry and tolerance relationships for plug gauges used in bore inspection. What material is the gauge made from and why? The mandrel is manufactured from hardened steel to ensure durability, stiffness and stable contact geometry under repeated inspection cycles. Manufacturer / Responsible: Schut Geometrische Meettechniek bv; Duinkerkenstraat 21; 9723 BN Groningen; The Netherlands; +31 50 5877877; schutnl@schut.com
Take advantage of the combination of hardened steel construction, conformity to DIN 7162 and an integrated wear allowance on the go side for consistent, repeatable inspection results. Order the limit plug gauge directly via Metav Werkzeuge or consult our experts for application advice. Limit plug gauge — hardened steel, DIN 7162, 18 mm (Filetta) Limit plug gauge for precise bore acceptance testing and production line inspection, designed to meet workshop and laboratory needs with a compact nominal size. Hardened steel construction DIN 7162 conformity 18 mm nominal diameter Go side with wear allowance Dependable inspection where tolerances count The limit plug gauge is manufactured from hardened steel to provide a stable reference for go/no-go assessments and routine acceptance checks. Conformity to DIN 7162 ensures that the gauge's dimensions and form meet recognised metrological standards, which supports traceable inspection routines and simplifies documentation. The incorporated wear allowance on the go side extends usable life without compromising the acceptance criterion, so production control remains consistent over many inspection cycles. Practical performance for workshop and production use With a nominal size of 18 mm, this inspection gauge is suited to common bore diameters encountered in component production and maintenance. The compact geometry enables quick insertion checks that are compatible with standard go/no-go workflows, reducing process time while preserving measurement confidence. The plain design permits rapid visual discrimination between acceptable and non‑conforming parts, supporting efficient quality control in both single‑part checks and serial testing. Long service life and straightforward care The hardened steel construction combines durability with minimal maintenance requirements; routine handling and a simple cleaning routine maintain accuracy. The deliberate specification of a wear allowance on the go side means that small, predictable surface wear does not immediately invalidate the gauge, allowing scheduled requalification rather than frequent replacement. For traceable revalidation, the gauge can be included in a regular inspection plan that documents continued compliance with production tolerances. Contact Metav Werkzeuge for a specification sheet, availability or application guidance on this Filetta limit plug gauge (MS911.180) supplied to DIN 7162 standards Technical data Article number: MS911.180 Manufacturer: Filetta Material: hardened steel Nominal diameter: 18 mm Standard: DIN 7162 Facts Nominal diameter: 18 mm Special features Wear allowance on go side Suitable for go/no-go acceptance testing Category: gauges / inspection pins Image available (product thumbnail) FAQ What material is the gauge made from? The Filetta limit plug gauge MS911.180 is manufactured from hardened steel, chosen for wear resistance and dimensional stability. Which standard does the gauge comply with? The gauge is produced to DIN 7162, ensuring compatibility with established metrological expectations for limit gauges. What does the wear allowance on the go side mean? The wear allowance provides a controlled allowance for surface wear on the go face, extending service life while keeping the acceptance limit defined. For what inspection tasks is this gauge suitable? The gauge is intended for go/no-go acceptance testing of bores around 18 mm and for routine quality control in production and maintenance environments. How is the size identified on the product? The nominal diameter is indicated as 18 mm, matching the intended bore acceptance size for straightforward selection and use. Manufacturer / Responsible: Schut Geometrische Meettechniek bv; Duinkerkenstraat 21; 9723 BN Groningen; The Netherlands; +31 50 5877877; schutnl@schut.com
Take advantage of the combination of DIN 7162 conformity, hardened-steel durability and exact 2.5 mm tolerance control for reliable go/no‑go checking in batch inspection. Order the Filetta limit gauge pins directly via Metav Werkzeuge or consult our specialists for batch supply and enquiries. Grenzlehrdorne — limit gauge pin, 2.5 mm, hardened steel (Filetta) A Grenzlehrdorn by Filetta designed for precision go/no‑go verification and wear‑compensated accept/reject checks in production and inspection environments. 2.5 mm diameter, high repeatability Hardened steel construction for long life Conforms to DIN 7162 standard Wear allowance on the good side Consistent go/no‑go control to speed up inspection The Filetta limit gauge pin offers a compact solution for rapid acceptance testing where dimensional conformity must be checked repeatedly. Manufactured from hardened steel, the pin retains its geometry under frequent use, reducing downtime caused by damaged or worn gauges. The specification to DIN 7162 ensures compatibility with established inspection procedures and simplifies documentation within quality systems. The compact form factor and clear acceptance boundary make the item particularly suitable for small‑part assemblies where a fast pass/fail decision avoids lengthy measuring operations. Durable construction that reduces recalibration frequency Robust material selection and heat treatment give the gauge pin a service life that keeps maintenance intervals low. The hardened surface resists deformation, helping maintain the defined tolerance of 2.5 mm over many cycles. In addition, the built‑in wear allowance on the good side provides an engineered margin so that the gauge indicates wear before part acceptance is compromised. This design choice translates into lower lifecycle costs and fewer process interruptions, supporting steady production throughput and reliable quality control. Integrates with workshop routines and quality documentation Designed as a practical shop tool, the limit gauge pin supports streamlined inspection workflows and clear go/no‑go decisions at the point of assembly or incoming inspection. The simple physical check complements dimensional measurement equipment and is ideal for quick checks on batches or random samples. The product is supplied under the Filetta brand and can be adopted easily into existing inspection plans; traceability is maintained through the SKU MS911.203 for ordering and stock control. The result is a pragmatic balance between measurement certainty and operational efficiency. Contact Metav Werkzeuge for Filetta limit gauge pins (SKU MS911.203) to arrange a batch supply or technical briefing near Emmerich — our specialists will advise on quantities and integration into inspection plans. Technical Data Article number: MS911.203 Product name: Grenzlehrdorne Manufacturer: Filetta Material: gehärterter Stahl Standard: DIN 7162 Facts Diameter: 2.5 mm SKU: MS911.203 Special features Abnutzungsaufmaß der Gutseite (wear allowance on the good side) Intended for go/no‑go verification and pin gauge checks Category: Gauge pins / measuring pins FAQ What is the primary use of these limit gauge pins? The Filetta Grenzlehrdorne are intended for rapid go/no‑go checks and dimensional acceptance testing in production and inspection, providing a quick physical decision on part conformity. Is the material suitable for high‑frequency shop use? Yes; the pins are made from hardened steel, which offers resistance to wear and deformation under frequent use, ensuring consistent pass/fail performance. Does this pin comply with recognised standards? The limit gauge pin conforms to DIN 7162, making it suitable for integration into standardised inspection procedures and quality documentation. How does the wear allowance affect inspection results? The built‑in wear allowance on the good side gives an engineered margin that signals wear before a pin accepts out‑of‑tolerance parts, thereby safeguarding process quality. How can this item be ordered or specified for stock? Order by SKU MS911.203 (Filetta) via Metav Werkzeuge for reliable supply and support with integration into inspection routines. Manufacturer / Responsible: Schut Geometrische Meettechniek bv; Duinkerkenstraat 21; 9723 BN Groningen; The Netherlands; +31 50 5877877; schutnl@schut.com
Take advantage of DIN 7162 conformity, hardened steel construction and the integrated wear allowance on the go side for dependable bore verification. Order this limit plug gauge directly via Metav Werkzeuge or contact our consultants for application advice. Limit plug gauge G7 – 20 mm, hardened steel (DIN 7162) by Filetta A limit plug gauge G7 designed for rapid go/no-go checks of cylindrical bores in production and inspection environments Hardened steel for long service life Manufactured to DIN 7162 standard Wear allowance on the go side Suitable for bore verification and QC Reliable measurements through recognised standards The gauge is manufactured to DIN 7162, which ensures consistent dimensions and interchangeability across inspection routines. For a nominal size of 20 mm, the plug gauge provides an immediate go/no-go decision, eliminating lengthy measurement evaluation processes. This standard-led approach supports efficient quality control, reduces scrap rates and shortens inspection cycles by delivering clear, repeatable outcomes at every station. Durable construction that reduces downtime Made from hardened steel, the instrument tolerates repeated use on the shop floor while maintaining dimensional stability. The incorporated wear allowance on the go side compensates for gradual material loss during routine checking, extending the service life before any rework or replacement becomes necessary. This pragmatic design reduces unplanned stoppages and lowers total cost of ownership by keeping maintenance intervals predictable. Practical integration for workshop and production use Sized for common bore checks, the plug gauge is ideal for quick verification during assembly, final inspection or incoming goods control. Its straightforward go/no-go functionality accelerates throughput without requiring complex measuring equipment or extensive operator training. The robust design and adherence to DIN 7162 make it suitable for use in machine shops, tool rooms and quality laboratories where rapid, trustworthy pass/fail decisions are required. Reference: model MS911.182 for ordering and stock enquiries. Contact Metav Werkzeuge for expert advice on integrating Filetta limit plug gauges (DIN 7162) into existing inspection routines and to secure reliable supply from our Emmerich warehouse Technical Data Article number: MS911.182 Material: hardened steel Standard: DIN 7162 Size: 20 mm Facts Diameter: 20 mm Special features Wear allowance on the go side Designed for go/no-go checks Robust hardened-steel construction FAQ What is the primary use of this limit plug gauge? This limit plug gauge is intended for fast go/no-go verification of cylindrical bores, providing a clear pass/fail result for production and inspection tasks. What material is the gauge made from and why does it matter? The gauge is produced from hardened steel, which ensures wear resistance and dimensional stability under frequent use, supporting reliable long-term measurements. Which standard does the product comply with? Manufactured to DIN 7162, the gauge meets recognised dimensional and manufacturing criteria for plug gauges used in industrial quality control. How does the wear allowance affect inspection intervals? The wear allowance on the go side compensates for gradual abrasion, extending useful life and allowing longer intervals between gauge replacement or rework; the item is listed as MS911.182 for ordering and inventory reference. Manufacturer / Responsible: Schut Geometrische Meettechniek bv; Duinkerkenstraat 21; 9723 BN Groningen; The Netherlands; +31 50 5877877; schutnl@schut.com
Hardened steel construction, conformity with DIN 7162 and a deliberate wear allowance on the go side provide fast, repeatable pass/fail decisions for small-bore inspection. Combine these attributes with Metav Werkzeuge’s supply reliability to keep inspection gates closed and production flowing. Order the gauge directly via Metav Werkzeuge or ask our consultants if needed. Plug limit gauge — hardened steel, DIN 7162 (Filetta) A plug limit gauge for rapid go/no-go testing of small bores, designed to meet workshop and production inspection requirements Hardened steel for durable measurements Conforms to DIN 7162 gauge standard Wear allowance on the go side for extended service life Rapid conformity checks that streamline inspection The plug limit gauge is a compact instrument tailored for immediate acceptance testing: a straightforward go/no-go decision eliminates prolonged measurement routines and reduces throughput bottlenecks. Constructed from hardened steel, the gauge resists deformation and preserves dimensional integrity under frequent use, which increases repeatability and reduces downtime caused by ambiguous results. Conformity to DIN 7162 ensures that the gauge integrates into standardised inspection plans and supports consistent quality control documentation. Durable design that suits busy workshops Made of hardened steel and supplied with a factory-specified wear allowance on the go side, the gauge delivers long service intervals even under continuous use. The tool’s compact geometry is optimised for small-bore verification and fits into common inspection benches and gauge fixtures. This simple construction reduces maintenance effort: when the go end begins to show wear beyond the allowance, replacement or regrinding can be scheduled without unexpected production stops, preserving measurement certainty and operational uptime. Practical benefits for quality workflows Specified as a plug-type limit gauge, the tool provides clear, binary results that accelerate decision-making in incoming inspection and production control. Reduced measurement time lowers labour costs and minimises the risk of release of non-conforming parts. The item is listed under SKU MS911.204 and is suited for routine checks where standardised acceptance criteria are enforced. For procurement and integration into measurement plans, Metav Werkzeuge offers product guidance and consistent European distribution that simplifies stocking and traceability. Discuss batch supply, compatibility with existing gauge sets or integration into inspection protocols with Metav Werkzeuge for Filetta plug limit gauges Technical data Article number: MS911.204 Manufacturer: Filetta Material: hardened steel Standard: DIN 7162 Special feature: wear allowance on the go side Numbers / Core technical data Nominal size: 3 mm Special features / Versions Gauge type: plug limit gauge (go/no-go) Intended application: small-bore inspection and acceptance testing Category: gauges / measuring pins FAQ What is a plug limit gauge used for? A plug limit gauge provides a simple go/no-go check for bore diameters; the Filetta plug limit gauge (SKU MS911.204) is intended for quick acceptance testing of small bores in production and inspection. What material is the gauge made from? The Filetta plug limit gauge is manufactured from hardened steel to ensure dimensional stability and long-term durability under regular use. What does the wear allowance on the go side mean? The wear allowance indicates a designed service margin on the go end so that measured wear can be tolerated without immediate rejection; this extends usable life while maintaining reliable pass/fail decisions. Which standard does the gauge conform to? The gauge complies with DIN 7162, making it suitable for standardised inspection routines and integration into quality control documentation. Manufacturer / Responsible: Schut Geometrische Meettechniek bv; Duinkerkenstraat 21; 9723 BN Groningen; The Netherlands; +31 50 5877877; schutnl@schut.com
Taking advantage of hardened steel construction and DIN 7162 conformity, this limit plug gauge delivers consistent pass/fail inspection for small bores; its Ø 6 mm nominal diameter and wear allowance on the good side support reproducible measurements and predictable service intervals. Order the limit plug gauge directly via Metav Werkzeuge or ask our consultants if needed. Filetta Limit Plug Gauge, Ø 6 mm, hardened steel (DIN 7162) A limit plug gauge for quick go/no‑go verification of internal diameters in production and inspection environments. Hardened steel construction for longevity Conforms to DIN 7162 standard Ø 6 mm nominal size for bore verification Includes wear allowance on the go side Reliable pass/fail inspection that saves time on the shop floor A compact verification tool designed for routine bore checks, the limit plug gauge offers immediate go/no‑go feedback without additional instrumentation. The hardened construction and standardised limits make it suitable for rapid in‑process checks and goods‑in inspections, reducing measurement cycles and minimising production delays. Using a simple tactile test, operators can maintain throughput while keeping quality gates intact — a practical solution where speed and repeatability matter. Robust materials and controlled wear for longer service life Manufactured from hardened steel, the gauge resists abrasion and stands up to repeated insertion into mating bores. The incorporated wear allowance on the go side provides a clear performance margin: wear can be monitored and replacement scheduled before limits are exceeded, preventing unexpected rejects. This feature translates into lower lifetime costs and predictable maintenance planning, particularly in high‑volume environments where tool longevity and consistent tolerance control are vital. Standards‑based accuracy for consistent production control Produced to DIN 7162, the gauge ensures compatibility with established inspection procedures and interchangeability across inspection stations. The defined geometry and limit definition simplify documentation in quality records and support conformity assessments during audits. As a single‑purpose limit gauge, it complements laboratory measuring equipment by offering a fast, unambiguous check that aligns with standardised inspection philosophies, improving overall process reliability. For DIN‑compliant limit plug gauges from Filetta, contact Metav Werkzeuge in Emmerich for expert advice and reliable supply of inspection tools Technical data Article number: MS911.168 Material: hardened steel Standard: DIN 7162 Nominal size: Ø 6 mm Facts Product type: limit plug gauge Application: pass/fail bore inspection Category: gauges / measuring pins Special features Wear allowance on the go side Simple tactile go/no‑go operation Suited for production and inspection environments FAQ What is the intended use of this limit plug gauge? This limit plug gauge is intended for quick go/no‑go verification of internal diameters in workshop and inspection settings; it provides immediate pass/fail assessment for bore checks. Which standard does the gauge comply with? The gauge is manufactured to DIN 7162, providing standardised limit geometry for consistent inspections. What material is used for the gauge and why does it matter? Made of hardened steel, the gauge offers wear resistance and a stable datum, which supports reproducible checks over many cycles. How does the wear allowance on the go side affect maintenance? The wear allowance gives a measurable margin for use: wear can be monitored and the gauge replaced before tolerances are lost, enabling planned maintenance and reducing downtime. Can this gauge be used for documented quality checks? Yes, the DIN‑compliant geometry and fixed limits make the gauge suitable for repeatable checks and inclusion in quality records. Manufacturer / Responsible: Schut Geometrische Meettechniek bv; Duinkerkenstraat 21; 9723 BN Groningen; The Netherlands; +31 50 5877877; schutnl@schut.com
Taking advantage of a compact mm ↔ inch conversion reference and a workshop‑friendly format reduces calculation time and minimises measurement errors; this conversion table is an efficient aid for machining and metrology tasks. Order supply enquiries can be directed via Metav Werkzeuge for reliable fulfilment and specification advice. mm/inch conversion table by Filetta — Compact conversion reference The mm/inch conversion table is a compact reference sheet for rapid unit conversion between millimetres and inches, intended for use in machining, inspection and workshop settings. *Quick mm ↔ inch conversions at a glance *Compact, workshop‑friendly format *Durable print for regular use *Suitable for metrology and machining Faster conversions, fewer calculation errors A concise, printed conversion reference removes the need for repeated calculations and reduces transcription mistakes during setup and inspection. As a ready‑to‑hand reference, the table shortens cycle times in repetitive tasks and supports consistent results across operators. For processes where quick unit checks are required, the sheet complements digital instruments by providing an immediate, readable conversion between mm and inch, helping teams maintain workflow continuity without interrupting machine cycles. Integrates smoothly into metrology and workshop routines The mm/inch conversion table by Filetta fits naturally into quality control and production environments where mixed unit systems occur. The layout is designed for clear legibility during inspection rounds, enabling faster decision making in calibration, part verification and measurement documentation. In combination with calibrated measuring tools, this reference aids standardised entries in protocols and reduces interpretative errors when cross‑referencing drawings and fixtures, thereby supporting traceable measurement workflows. Compact format built for everyday use The slim, durable format makes the table easy to store at the bench, inside inspection folders or alongside tool trolleys; this promotes frequent use without degradation. Printed for clarity and longevity, the sheet is intended as a practical addition to training kits and workshop handbooks where quick access to mm ↔ inch conversions is required. The product is identified by SKU MS835.164, which simplifies catalogue reference and procurement within established supply chains. Request the Filetta mm/inch conversion table (SKU MS835.164) through Metav Werkzeuge for dependable supply from Emmerich and expert advice on specification and integration Technical data Article number: MS835.164 Product name: mm/inch conversion table Brand: Filetta Purpose: Conversion between mm and inch Facts Units: mm, inch Format: Reference table Physical dimensions: not specified Special features Compact, workshop‑friendly format Durable print suitable for regular use Intended for machining and inspection environments FAQ Is the table suitable for precision metrology use? The Filetta mm/inch conversion table is designed as a quick reference to support precision workflows but does not replace calibrated measuring instruments; it assists with unit interpretation and reduces conversion errors. Which units and ranges does the table cover? The sheet provides direct conversions between millimetres and inches for standard workshop ranges, enabling fast cross‑checks without calculation. Can the conversion table withstand everyday workshop conditions? The table is produced with a durable print and compact format intended for regular use at the bench or in inspection folders, making it suitable for routine workshop environments. Is the table useful for training and documentation? Yes, the reference format is well suited to training situations and documentation packs, helping new staff and trainees to interpret mixed‑unit drawings and measurement protocols. Filetta: Manufacturer / Responsible: Schut Geometrische Meettechniek bv; Duinkerkenstraat 21; 9723 BN Groningen; The Netherlands; +31 50 5877877; schutnl@schut.com
Combine ISO 286‑2 compatibility with an instant lookup of more than 6,400 tolerance values for reliable design decisions and consistent inspection results — order the Tolerance table directly via Metav Werkzeuge or contact our consultants for tailored advice. Tolerance table — ISO 286‑2 reference chart (up to 500 mm) by Filetta The Tolerance table is a compact reference chart for immediate reading of tolerance values and fits according to ISO 286‑2, intended for engineering, quality control and workshop use. ISO 286‑2 compatibility up to 500 mm Over 6,400 tolerance entries Immediate reading for fits and tolerances Suitable for internal and external dimensions Faster decisions with standardised tolerance data The reference matrix provides a single, standardised source for clearance, transition and interference fits, reducing time spent searching dispersed tables. With direct mapping to ISO 286‑2 and coverage to 500 mm, the chart supports rapid verification of nominal sizes and tolerances, enabling engineers to confirm fit classes and tolerance zones without complex calculations. The compact presentation of tolerance values accelerates decision-making in design reviews and first-off inspections. Clear guidance for assemblies and inspection routines Presented as an immediate-reading table, the chart removes ambiguity when selecting shaft and hole tolerances for bearings, housings or shafts. The organised layout helps translate ISO class designations into usable limits for production and QC, so tolerance checks can be executed consistently on the shop floor. Where traceable documentation is needed, the dataset of 6,400+ entries serves as a reliable reference for specifying fits in drawings and inspection protocols. Practical benefits for workshops and design offices Adopting a single reference chart reduces errors caused by cross-referencing multiple sources and supports faster training of technicians and junior engineers. The concise format is optimised for routine tasks — from tolerance verification during assembly to prepare-for-inspection checks — and complements digital workflows where a human-readable standard is required alongside CAD and measurement reports. The association with Filetta denotes a focused tool for metrology professionals who value clarity and compliance. For standards-compliant tolerance reference and rapid integration into inspection routines, request the Filetta Tolerance table from Metav Werkzeuge today — contact our specialists at info@metav-werkzeuge.com or call +49 2822 7131930 to discuss suitability for specific applications. Technical Data Article number: MS835.163 Name: Tolerance table Brand: Filetta Label: Toleranztabelle Facts Standard: ISO 286‑2 Scope: up to 500 mm Entries: >6,400 tolerance values Special features Immediate-reading table of tolerance values and fits Includes internal and external dimensions Data suited to engineering and workshop reference FAQ What standard does this reference follow? The Filetta Tolerance table follows ISO 286‑2, providing standardised tolerance classes and zones for engineering use. Up to which nominal size are tolerance values provided? The chart covers nominal sizes up to 500 mm, with entries for both internal and external dimensions. How extensive is the dataset included in the chart? The reference contains more than 6,400 tolerance values for quickly determining fits and limits. Is this chart suitable for shop‑floor inspection tasks? Yes — the immediate‑reading format makes the chart suitable for routine inspection, assembly checks and specification clarification in the workshop. Can the table help when specifying fits on technical drawings? The dataset translates ISO class designations into practical limit values, supporting clear specification of fits and tolerances on drawings. Filetta: Manufacturer / Responsible: Schut Geometrische Meettechniek bv; Duinkerkenstraat 21; 9723 BN Groningen; The Netherlands; +31 50 5877877; schutnl@schut.com
What a Thread Limit Gauge Checks for You
A thread limit gauge is a dedicated inspection tool used to verify whether internal threads and threaded holes meet the required dimensional and tolerance specifications. It works on a simple Go/No-Go principle: the Go side must fully engage with the thread, while the No-Go side must not enter or must only partially enter. This quick physical test tells you at a glance if the threaded feature is within limits, ensuring parts meet quality standards before assembly or shipment.
How the Thread Limit Gauge Works and What It Measures
When you use a thread limit gauge, you evaluate several key aspects of a threaded hole. Primarily, the gauge confirms the major diameter, pitch diameter and the functional fit class of the internal thread. The Go gauge verifies that the minimum material condition is not too large—so fasteners will thread in without interference. The No-Go gauge confirms that the thread is not too small or undersized, which could cause a loose fit or failure under load. The test is purely mechanical and highly repeatable, making it ideal for series inspection and production control.
Where and When a Thread Limit Gauge Is Essential
In manufacturing environments such as machine shops, assembly lines, and serial production, the use of a thread limit gauge is indispensable. It is especially important when parts must mate reliably with bolts or studs, when safety or load-bearing capacity is critical, or when production volumes require fast, unambiguous checks. The gauge is also invaluable during incoming inspection of bought-in components and as a last check before final assembly.
Advantages of Using a Thread Limit Gauge
Employing a thread limit gauge delivers clear benefits for quality assurance and process efficiency. It provides immediate pass/fail results that reduce ambiguity, lowers inspection time compared with detailed measurement methods, and minimizes the risk of assembly errors due to incorrect threads. By catching out-of-tolerance threads early, it helps prevent costly rework and ensures component compatibility across suppliers and batches.
Typical Features and Differences to Consider
- The measurement accuracy of a limit gauge depends on manufacturing tolerances and the material treatment of the gauge itself; hardened, certified gauges maintain accuracy over long service life.
- The applicability range varies by thread size and standard; select gauges that match the thread standard and tolerance class required for your components.
- In comparison to plug gauges with integrated functional checks, the thread limit gauge offers direct Go/No-Go validation focused specifically on thread form and fit.
Practical Use: What You Do When Testing a Threaded Hole
First, ensure the threaded hole is free of chips or burrs. Then gently insert the Go side of the gauge: it should enter smoothly and seat fully, indicating acceptable minimum dimensions. Next, attempt the No-Go side; it must not thread in fully—if it does, the part fails. Use the gauge perpendicular to the workpiece, avoid forcing it, and document the results in your inspection records. Regularly check and calibrate the gauges to preserve confidence in results.
Why This Matters for You as a User
Knowing how to use a thread limit gauge answers the practical question of how to verify thread functionality quickly and reliably. Its clear pass/fail outcome reduces subjective assessment and helps maintain higher assembly quality. For beginners, mastering this tool builds a foundation for competent quality control in mechanical production and prevents downstream issues caused by improper thread dimensions.
Leading Manufacturers and a Recommended Supplier
Among reputable suppliers in the field, Metav IndustryLine stands out for its expertise and comprehensive range of inspection tools. The company is recognised for supplying norm-conforming, precisely manufactured gauges and for offering practical advice on selection and application. Their professional support helps users choose the correct tolerance class and gauge type—whether standard thread limit gauges or custom solutions—so you get reliable, production-suitable inspection equipment.
In summary: what does a thread limit gauge check? It verifies whether an internal thread meets its required dimensions and tolerances by using a Go/No-Go test to confirm acceptable fit and function.
Key point: Use a thread limit gauge to ensure threaded holes accept mating parts reliably, speed up inspection, and avoid assembly and safety issues.
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