M3 Dome Nut, 304 Stainless Steel - DNUA2M3

The Metric Dome Nut, 304 Stainless Steel is available in 11 sizes (M3 to M24) and is a one-piece nut with a rounded closed top that covers the end of the bolt thread.

This listing has 11 variants covering sizes M3 to M24. Variants are supplied in packs of 25 to 100, depending on size.

Made from 304 (A2) stainless steel, a standard austenitic grade with good everyday corrosion resistance. It is a sound choice away from the coast; in chloride-exposed settings, step up to 316 (A4). Metric sizes are written M followed by the nominal thread diameter in millimetres, so M10 is a 10 mm thread.

Use stainless washers and nuts with stainless fasteners, so the whole joint is made of the same material.

Where this product is used

• Larger sizes for frames, plant and structural fixings
• General workshop and maintenance use
• Handrails, balustrades and exposed fittings
• Indoor architectural and joinery work
• Covering exposed bolt ends for a neat, safe finish
• Fresh water and general outdoor fittings

Features

• One-piece construction
• Closed, rounded top covers the bolt end
• A2 (304) stainless steel for indoor, fresh water and general outdoor use
• Pack quantities to suit trade and bulk buying: packs of 25 to 100
• Choice of 11 sizes, M3 to M24
• Metric thread sizes match the nuts, bolts and tapped holes in most Australian-supplied equipment

Key specifications

Selecting the right option

Check that the bolt does not bottom out inside the dome before the nut is tight. Use anti-seize on the thread. For coastal or chloride-exposed use, choose the A4 (316) version: Metric Dome Nut - 316 Stainless Steel.

Related products

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