Square Washer, DIN 436, Zinc Plated, M12 (12 x 40 x 40 x 3)

Overview

Washers distribute load, protect mating surfaces, improve seating and support locking or sealing depending on the washer type. The correct washer should match the fastener diameter and the joint function.

This selected size is specified with diameter M12, thread M12.

Sold in multiples of '100 pieces. 1 Box = '100 pieces.

Material, Grade & Strength

Mild steel is an economical carbon steel option for general purpose fastening where high tensile strength is not required.

Finish & Corrosion Protection

Zinc plating provides economical sacrificial corrosion protection for indoor and general industrial service.

Typical Uses

Washers are used under bolt heads and nuts to spread load, protect surfaces, improve seating and provide locking or sealing support depending on the washer type.

Technical Tips

• Match the washer inside diameter to the fastener size.
• Use flat washers for load spreading and surface protection.
• Use spring, toothed or lock washers only where their locking function is appropriate.
• Use bonded washers where sealing against water ingress is required.

Selection Advice

Select the product by matching the thread, size, material, finish and function to the assembly. Avoid choosing only by appearance or a partial part number.