250mm Stud Bolt M20 Hardened Grade 8.8 DIN 6379, Threaded Length 160mm - AMF

Take advantage of a robust, DIN‑compliant fastening solution: the combination of DIN 6379 standardisation and property class 8.8 heat treatment ensures dependable clamp strength and consistent assembly performance; order directly via Metav Werkzeuge or consult our specialists for precise application advice.

AMF Stud Bolt DIN 6379, M20 x 250 mm, Class 8.8

A AMF stud bolt (DIN 6379) designed for heavy‑duty fastening in mechanical assemblies, flanged joints and structural connections.

• Heat‑treated to property class 8.8
• Conforms to DIN 6379 standard
• M20 metric thread for robust connections
• 250 mm overall length for deep assemblies

Reliable connections for demanding assemblies

The AMF stud bolt delivers a focused solution where repeatable, high‑strength joints are required. Conformance to DIN 6379 guarantees dimensional compatibility with matching nuts and components, reducing assembly errors and rework. The metric M20 thread, combined with the specified overall length of 250 mm, allows for secure engagement in flanged unions or layered assemblies. For production planners and maintenance engineers, this translates into shorter fitting times and predictable torque behaviour during tightening.

Strength and material treatment explained

Specified as property class 8.8, the fastener benefits from heat treatment that raises tensile strength and yield characteristics compared with untreated bolts. In practice, this means the stud is suitable for structural and mechanical applications that demand medium‑high strength without resorting to alloy or special‑grade fasteners. Compliance with DIN 6379 ensures that the fastener’s mechanical attributes and thread form meet established industrial tolerances, facilitating interchangeability across suppliers and simplifying procurement specifications.

Application notes and installation benefit

The stud’s length and thread size make it suitable for deep or multi‑layer assemblies where standard bolts would not provide sufficient engagement. A width value of 27 mm supports the use of standard spanners or sockets for installation, enabling consistent torque application and easier on‑site handling. Where downtime or alignment sensitivity is a concern, adopting a DIN‑based stud reduces the risk of incorrect part selection and contributes to stable joint life cycles, lowering maintenance frequency and supporting predictable production throughput.

For assured supply and expert guidance on integrating AMF fasteners into industrial assemblies, contact Metav Werkzeuge in Emmerich at info@metav-werkzeuge.com or +49 2822 7131930 to discuss specifications and availability

Technical data

• Article number: 4000833286NW
• Manufacturer: AMF
• Product type: Stud bolt
• Standard: DIN 6379
• Packaging unit: 1

Core measurements

• Thread: M20
• Overall length: 250 mm
• Width: 27 mm
• Addition: b: 160

Special features

• Heat‑treated to property class 8.8
• Conforms to DIN 6379
• Suitable for use in bolted and flanged connections

FAQ

What applications suit this stud bolt best?
The stud bolt is intended for mechanical assemblies, flanged joints and structural connections where a DIN 6379‑compliant, heat‑treated fastener is required; the SKU 4000833286NW identifies this specific AMF item.

How does property class 8.8 influence performance?
Property class 8.8 indicates a heat‑treated medium‑high strength fastener; in practice, the AMF stud bolt provides reliable tensile and yield behaviour for many industrial fastening jobs without requiring specialised alloy grades.

Is the thread form compatible with standard nuts and tools?
Yes — the M20 metric thread follows standard thread specifications and pairs with standard M20 nuts and common spanner or socket sizes for secure tightening.

Can this fastener be used in multi‑layer or deep assemblies?
With an overall length of 250 mm, the stud is well suited to deeper stacks and multi‑layer joints, allowing sufficient thread engagement for robust clamping.

What does DIN 6379 guarantee for procurement teams?
DIN 6379 conformity ensures dimensional interchangeability and adherence to established industrial tolerances, simplifying supplier selection and quality assurance when specifying the AMF stud bolt (SKU 4000833286NW).

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