Socket Head Cap Screw with Spring & Plain Washers M5x12 316 Stainless Steel

Socket Head Cap Screw with Spring & Plain Washers M5x12 316 Stainless Steel — stocked and shipped worldwide by SFX Fasteners. Available for single-piece retail orders — no minimum order — dispatched from our own warehouse within 24–48 hours.

Specifications

Ordering & shipping

Need a specific size, grade or standard? Send us a quote request — we quote to drawing and to DIN / ANSI / GB / JIS standards.

About this washer

This is a washer in 316 Stainless Steel, at strength class A4-80, supplied plain, with an M5 thread and a 12 mm length. Every dimension is stated against the standard named above; where a tolerance class matters to your design, ask us and we will confirm it in writing before you order.

A washer spreads the clamp load of the fastener over a wider area of the joint face and keeps the turning nut or head from scoring the part underneath. Fitted under bolts, screws and nuts on soft or painted surfaces, slotted holes, and any joint that is taken apart often enough for the face to matter.

Plain (self-colour) means no coating. On 304 and 316 stainless that is fine — the alloy passivates on its own. On carbon steel it will rust, so choose a coated option instead.

316 (EN 1.4401, A4) adds 2–3% molybdenum, which is what stops pitting in chloride environments. Specify it for marine air, coastal sites, swimming pools, salt spray, chemical plant and food processing.

Sold by the piece, so one is a valid order. Stock lines leave our warehouse within 24–48 hours of cleared payment, and freight is calculated at checkout from the packed weight and the destination.