M2 Spring Washer, 304 Stainless Steel - SWAA2M2

The Metric Spring Washer, 304 Stainless Steel is a split ring washer, twisted so that its ends spring apart. It sits under a nut or bolt head and helps resist loosening from vibration.

You can choose from 13 variants, covering sizes M2 to M24. Variants are supplied in packs of 100 to 200, depending on size.

The A2 (304) stainless material suits indoor, fresh water and typical outdoor use. Where the fastening is exposed to salt air, pool chemicals or marine conditions, A4 (316) is the grade to use instead. Metric sizes are written M followed by the nominal thread diameter in millimetres, so M10 is a 10 mm thread.

Austenitic stainless steel is generally non-magnetic, although cold-worked parts can show weak magnetism. In wet conditions, keep stainless steel apart from aluminium and galvanised steel with a washer or sleeve, to reduce the risk of galvanic corrosion.

Where this product is used

• Larger sizes for frames, plant and structural fixings
• Bulk jobs and trade or maintenance stores buying in larger packs
• Machinery, frames and covers
• Kitchen, bathroom and laundry fixtures
• Indoor architectural and joinery work
• Under nuts and bolt heads on vibrating equipment

Features

• Split ring spring action keeps pressure on the fastener
• Range covers M2 to M24 in 13 variants
• A2 (304) stainless steel for indoor, fresh water and general outdoor use
• Metric thread sizes match the nuts, bolts and tapped holes in most Australian-supplied equipment
• Resists loosening from vibration
• Supplied in packs of 100 to 200

Key specifications

Selecting the right option

A spring washer provides limited locking on its own. Where the joint is critical or loaded in shear, use a locking nut or a thread-locking method as well. Match the washer to the fastener size. For coastal or chloride-exposed use, choose the A4 (316) version: Metric Spring Washer - 316 Stainless Steel.

Related products

Also available: Imperial Spring Washer - 316 Stainless Steel - A0212243 and Imperial Spring Washer - 316 Stainless Steel - A0212244. Matching products: Metric Hex Bolt - 304 Stainless Steel, Metric Standard Hex Nut - 304 Stainless Steel and Inox Standard Flat Round Washer - 304 Stainless Steel.