M12 Hexagon Nut DIN 6331 With Collar Forged Grade 10 Strength 18mm - AMF

Benefit from a forged construction, integrated flange and strength class 10 performance for secure, long-lasting bolted connections; order the flanged hexagon nut M12 directly via Metav Werkzeuge or ask our consultants if needed.

AMF Hexagon nut DIN 6331 M12 (flanged) — Strength class 10, SW 18 mm

The flanged hexagon nut DIN 6331 M12 designed for high-strength bolted joints in machinery, fixtures and structural assemblies.

• Flanged bearing surface for even load distribution
• Forged construction for improved fatigue resistance
• Tempered to strength class 10 for high loads
• Wrench size SW 18 mm for standard tooling

Dependable clamping performance for industrial assemblies

The element combines a forged body with an integral flange, delivering a stable bearing surface that reduces pressure on mating parts and minimises loosening under vibration. Conformity with DIN 6331 signals compatibility with common industrial fastener systems, while the M12 thread size balances load capacity and installation convenience. This makes the component an efficient choice for applications where secure clamping and repeatable torque behaviour are required.

Material treatment and mechanical capability explained

Tempering of the nut enhances toughness and tensile properties; the designation strength class 10 indicates a high-strength specification suitable for demanding connections. Forging refines the grain structure and increases endurance under cyclic loads compared with simple cold-formed parts. For installers, the SW 18 mm wrench size aligns with standard spanner sets, ensuring straightforward assembly without special tooling and consistent tightening outcomes when used with appropriate bolts and torque tables.

Practical advantages in workshop and production environments

The integrated flange reduces the need for separate washers, streamlining inventory and speeding assembly processes. The robust design resists deformation during installation, which assists in preserving clamping preload and reduces the risk of joint settling. For procurement and maintenance planners, the combination of durability and standard dimensions supports reduced downtime and fewer part variations across similar assemblies.

Application considerations and installation guidance

Suitable for incorporation into machine frames, jigs, fixtures and structural fittings where a flanged bearing face is beneficial. Selection should follow existing bolting guidelines: pair the nut with a compatible bolt grade and apply the recommended torque values for a reliable joint. When specific environmental or surface-coating requirements are present, consult the technical advisors to verify suitability; the product data confirms tempering and forging, while additional protective finishes are not specified in the basic item data.

Choose AMF’s flanged M12 hexagon nut for robust, standard-compliant assemblies — contact Metav Werkzeuge at info@metav-werkzeuge.com or +49 2822 7131930 for supply and technical guidance

Technical data

• SKU: 4000603344NW
• Standard: DIN 6331
• Type: Hexagon nut (flanged)
• Size: M12
• Wrench size: SW 18 mm
• Strength class: 10
• Heat treatment: Tempered
• Manufacturing: Forged
• Packaging unit: 1

Key dimensions / measurable data

• Thread size: M12
• Wrench opening: 18 mm
• Packaging: 1 piece
• SKU identifier: 4000603344NW

Features / Applications

• Integrated flange for larger bearing area
• Tempered for increased load capacity
• Forged for improved mechanical integrity
• Conforms to DIN 6331 for interchangeability
• Intended for high-strength bolted connections

FAQ

What standard does this nut comply with?
The component complies with DIN 6331; the flanged hexagon nut M12 is specified to this standard for dimensional and functional interchangeability.

What distinguishes strength class 10 in this nut?
Strength class 10 denotes a high-strength fastener; the AMF flanged nut in this specification is tempered and manufactured to deliver elevated tensile and yield performance.

Which spanner size is required for installation?
The nut uses an SW 18 mm wrench size; standard 18 mm spanners or sockets fit the hexagon profile for assembly.

Can the flanged nut replace a nut-and-washer combination?
Yes — the integrated flange provides a wider bearing surface, often eliminating the need for a separate washer where surface pressure distribution is the primary concern.

Is any surface coating specified?
The provided product data states tempering and forging; no specific coating or plating is listed for this SKU (4000603344NW).

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