M2 Hex Nut, 316 Stainless Steel - XNUA4M2

The Metric Standard Hex Nut, 316 Stainless Steel is available in 22 sizes (M2 to M48) and is a six-sided nut that screws onto a bolt, stud or threaded rod and is tightened with a spanner or socket.

Made from 316 (A4) stainless steel, the grade normally specified for chloride-exposed work such as coastal installations, swimming pools, marine fittings and food-processing plant. Metric sizes are written M followed by the nominal thread diameter in millimetres, so M10 is a 10 mm thread.

This listing has 22 variants covering sizes M2 to M48. Variants are supplied in packs of 5 to 200, depending on size.

Austenitic stainless steel is generally non-magnetic, although cold-worked parts can show weak magnetism. Stainless threads can gall (seize) when tightened under load or at speed. A smear of anti-seize on the thread and a steady tightening speed reduce the risk.

Where this product is used

• Bulk jobs and trade or maintenance stores buying in larger packs
• Larger sizes for frames, plant and structural fixings
• Marine, coastal and washdown assemblies
• General engineering and maintenance fastening
• Small sizes for enclosures, instruments and light fittings
• Securing bolts, studs and threaded rod

Features

• Pack quantities to suit trade and bulk buying: packs of 5 to 200
• Matches bolts and studs of the same thread
• A4 (316) stainless steel with molybdenum, for coastal and chloride-exposed settings
• Metric thread sizes match the nuts, bolts and tapped holes in most Australian-supplied equipment
• Hex form for spanner or socket tightening
• Choice of 22 sizes, M2 to M48

Key specifications

Selecting the right option

Match the nut to the bolt: thread system, diameter and pitch must all agree, and metric, UNC and BSW nuts do not interchange. Where a nut is tightened repeatedly, use anti-seize, because stainless threads can gall. Where chlorides are not a concern, the A2 (304) version costs less: Metric Standard Hex Nut - 304 Stainless Steel.

Related products

Other versions in this range: BSW Standard Hex Nut - 304 Stainless Steel and UNC Standard Hex Nut - 304 Stainless Steel. Matching products: Metric Hex Bolt - 316 Stainless Steel, Metric Hex Set Bolt (Full Thread) - 316 Stainless Steel and Flat Round Washer DIN125A Stainless Steel.