315mm Stud Bolt M20 Hardened 8.8, DIN 6379 - AMF

Reliable fixings for demanding assemblies: the combination of DIN 6379 compliance, M20 thread geometry and 315 mm overall length delivers consistent, high‑load connections; benefit from quenched and tempered steel in property class 8.8 and order the stud bolt directly via Metav Werkzeuge or consult our advisors.

AMF stud bolt DIN 6379 — M20 x 315 mm, property class 8.8

The stud bolt DIN 6379 M20 x 315 mm is a precision fastener designed for secure, repeatable mechanical connections in industrial and workshop assemblies.

• DIN 6379 standardised thread geometry
• M20 thread for robust connections
• 315 mm overall length for deep assemblies
• Quenched and tempered, property class 8.8

Consistent fit and repeatable installation for production use

Compliance with DIN 6379 ensures a predictable thread form and tight tolerances, which translates into consistent fit across batches. This reliability reduces assembly time and minimises the need for rework in repetitive production environments. The M20 thread dimension combined with the 315 mm length supports applications where extended engagement is required, such as coupling flanged components or securing long‑reach fittings. Specified tolerance adherence means fewer rejects and a smoother production flow.

Strength and material treatment that cut maintenance intervals

The component is quenched and tempered to property class 8.8, which indicates a high‑tensile performance level suitable for most structural and mechanical joints. In practice, this heat treatment raises yield and tensile strengths compared with untreated steel, so assemblies retain clamp force longer under cyclical loads. For engineers and maintenance planners, this equates to longer service intervals and lower lifecycle expenditure through reduced fastener replacement and downtime.

Easy integration into existing assemblies and tooling

Designed as a standard threaded stud, the threaded stud integrates with widely available nuts and washers without bespoke tooling. The nominal wrench dimension of 27 mm supports straightforward installation with common spanners or sockets, while the standardised thread profile promotes compatibility with existing mating parts. Clear specification allows planners to validate designs quickly and procurement to order with confidence, streamlining purchasing and saving specification time.

For applications that prioritise standard compliance and tensile strength, contact Metav Werkzeuge to discuss the AMF stud bolt SKU 4000833287NW and obtain tailored fastener recommendations.

Technical data

• Article number: 4000833287NW
• UID: 4000833287NW
• Brand: AMF
• Product type: stud bolt

Dimensions & thread

• Thread: M20
• Overall length: 315 mm
• Nominal width (wrench): 27 mm
• Addition: b = 200

Materials & features

• Standard: DIN 6379
• Heat treatment: quenched and tempered to property class 8.8
• Packaging unit: 1

FAQ

What standard does this stud bolt conform to?
The stud bolt conforms to DIN 6379, ensuring standardised thread geometry and predictable tolerances for industrial use.

What are the key dimensions and how are they specified?
The fastener is specified with an M20 thread and an overall length of 315 mm (SKU 4000833287NW), making it suitable for assemblies requiring extended engagement.

What does property class 8.8 mean for performance?
Property class 8.8 indicates the stud bolt has been quenched and tempered to provide elevated tensile and yield strength compared with untreated steel, suitable for demanding mechanical joints.

Is the stud bolt compatible with standard nuts and washers?
Yes, the thread is a standard M20 form per DIN 6379, which pairs with commercially available nuts and washers designed for that thread size.

Who manufactures this stud bolt?
This stud bolt is supplied under the AMF brand; for procurement and technical enquiries reference SKU 4000833287NW.

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