36mm Extension Nut M12 SW19 Hex 21.1 Dimension - AMF

Take advantage of a compact, service-friendly thread extension that ensures secure M12 connections and straightforward integration into existing assemblies — with a clear spanner interface and compact overall height for confined installations. Order the item directly via Metav Werkzeuge or consult the specialists for application advice.

Extension Nut No. 6334 M12 (AMF) — M12 thread with 19 mm spanner interface

The Extension Nut No. 6334 M12 extends standard M12 threads to accommodate thicker assemblies and repair tasks, suited for mechanical fittings, fixture adjustments and maintenance operations.

• M12 thread extension for standard assemblies
• 19 mm spanner size for common tool sets
• 36 mm overall height for compact installations
• 21.1 mm corner dimension for tight clearance

Reliable thread extension for secure clamping

The primary function of this component is a precise M12 thread extension that delivers repeatable clamping performance under routine assembly conditions. The hex interface, specified as a 19 mm spanner size, aligns with common workshop tool sets and enables efficient torque application using standard spanners or sockets. This reduces assembly time and minimises the risk of thread stripping when longer protrusions are required. The specification focuses on compatibility and operational reliability rather than decorative aspects, supporting continuity in production and maintenance workflows.

Compact geometry for installation in restricted spaces

With an overall height of 36 mm and a corner measurement of 21.1 mm, the design is optimised for installations where axial or radial space is limited. The stated corner dimension clarifies the hex-to-flat envelope to ensure clearance with adjacent components and fasteners. In practice, this means the extension can be integrated without redesigning surrounding parts, allowing retrofits and repairs to proceed without additional machining. The compact profile therefore contributes directly to reduced downtime and a more efficient assembly process.

Straightforward integration and predictable performance

The component is defined by a clear part type and size code, simplifying inventory management and procurement for production or maintenance departments. Compatibility with standard M12 fastenings ensures predictable mechanical behaviour when paired with bolts, studs or threaded rods of the same nominal size. Traceability is supported by the supplied SKU, enabling fast reordering and documentation in maintenance records. Where material or surface treatment questions arise, technical enquiries can be directed to the supplier for confirmation to match particular application requirements.

For reliable M12 thread extensions and application guidance, contact Metav Werkzeuge in Emmerich for a supply quote or technical consultation via info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 4000833425NW
• Label: Verlängerungsmutter Nr. 6334 M12 SW 19mm AMF
• Product type: Extension nut

Facts

• Thread size: M12
• Spanner width: 19 mm
• Overall height: 36 mm
• Corner dimension: 21.1 mm
• Packaging unit: 1

Special features

• Type designation: Nr. 6334
• Brand: AMF
• UID: 4000833425NW

FAQ

What thread size does the extension nut use?
The extension nut is specified for an M12 thread, suitable for assemblies and fastenings that require M12 engagement.

Which spanner or socket fits the hex face?
The hex interface requires a 19 mm spanner or equivalent 19 mm socket for torque application.

How much additional length does the component provide?
The overall height is 36 mm, which reflects the axial extension available for longer assemblies.

Is the corner dimension relevant for fitting adjacent components?
Yes — the corner measurement of 21.1 mm indicates the hex envelope and helps assess clearance in tight assemblies.

Can this part be identified for reordering or documentation?
Reordering and traceability are supported via SKU 4000833425NW and the type designation Nr. 6334 M12 from AMF.

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