G 3/8" Pipe Thread Go Gauge, Whitworth Right-Hand, Hardened Gauge Steel, DIN ISO 228 - Metav IndustryLine

Take advantage of precise thread verification for repeatable assembly quality and reduced rework: hardened gauge steel construction combined with DIN ISO 228 conformity ensures reliable inspection of Whitworth pipe threads; order directly via Metav Werkzeuge or consult our specialists for selection and supply.

M315.303 Pipe thread plug gauge, G 3/8 Whitworth — hardened gauge steel, DIN ISO 228

The M315.303 is a right-hand pipe thread plug gauge designed for rapid go/no-go verification of G 3/8 Whitworth threads in production and inspection workflows.

• Hardened gauge steel construction
• Conforms to DIN ISO 228
• Right-hand G 3/8 Whitworth thread

Consistent verification that reduces production rejects

This plug gauge combines hardened gauge steel with a compact, robust geometry to provide predictable wear behaviour and long service life. Inspectors and machine operators benefit from clear go/no-go assessment, which supports faster decision-making on the shop floor and reduces the volume of rework. The direct thread check shortens cycle times during final inspection and in-process control while maintaining repeatable results.

Suited to production and workshop environments

With a compact weight of 0.103 kg and a solid feel, the gauge is easy to handle at the bench or beside turning and fitting stations. The right-hand Whitworth thread form and the specified G 3/8 size match common pipe-threaded components, making the device appropriate for mechanical workshops, valve and fitting manufacturers, and general maintenance departments. The simple design requires minimal operator training and facilitates quick spot checks without interrupting production flow.

Standards compliance for traceable quality assurance

Manufactured to DIN ISO 228, the gauge supports standardised inspection routines and internal quality documentation. The stated tolerance class: Medium provides an effective balance between strict conformity and durability in everyday use. Numerical data such as the 19 tpi pitch and thread designation give clear, objective criteria for acceptance or rejection, aiding documented quality systems and supplier control processes.

Durability and practical handling for frequent use

The hardened material and compact form factor were chosen for repeated engagement with threaded parts: resistance to surface damage and consistent mating preserve measurement certainty over many cycles. The design minimises burr accumulation and simplifies cleaning, while the visible thread form enables immediate tactile feedback during checks. This plug gauge supports efficient inspection routines without introducing complex handling steps.

Choose the Metav IndustryLine plug gauge for dependable thread verification and contact Metav Werkzeuge for tailored advice and prompt supply from Emmerich.

Technical data

• SKU: M315.303
• GTIN: 4054469126975
• Weight: 0.103 kg
• Thread size: G 3/8"
• Pitch: 19 tpi
• Material: Gauge steel, hardened
• Standard: DIN ISO 228
• Tolerance class: Medium
• Tariff number: 90173000

Numbers / Core technical data

• Weight (kg): 0.103

• Pitch (threads per inch): 19

• Tariff number: 90173000

Designs / Special features

• Right-hand Whitworth thread form
• Hardened gauge steel construction
• Medium tolerance class
• Category: Gauges / Plug gauges
• Intended application: Thread verification for pipe fittings

FAQ

What thread size and standard does this gauge check?
The M315.303 plug gauge checks G 3/8 threads and complies with DIN ISO 228, suitable for Whitworth pipe-thread inspections.

Is the gauge suitable for routine shop-floor checks?
Yes, the hardened construction and compact mass (0.103 kg) make this plug gauge well suited to frequent use in production and workshop environments.

What does the pitch value indicate?
The listed pitch of 19 tpi denotes the thread density used for the Whitworth G 3/8 designation and provides an objective acceptance criterion during inspection.

Which tolerance class applies to the gauge?
This gauge is supplied in a Medium tolerance class, offering a balanced compromise between measurement strictness and operational durability.

Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com