Products for bench top machinists | LittleMachineShop.com

Washer, M4 Flat Large Diameter

Washer, M4 Flat Large Diameter - Main image
$0.1 $0.15 In stock

M4 large diameter flat washer. Outside diameter is 12 mm, thickness is 0.9 - 1.1 mm. Complies with ISO 7093-1 and 7093-2 (DIN 9021).

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Customer Reviews (5.0 / 5 · 5 reviews)

Natalie M. ★★★★★

The hole fits perfectly on M4 bolts, and the larger outer edge gives a much better grip than standard small washers. I’ve been using them for mounting brackets, and they don’t deform under moderate torque.

Richard N. ★★★★★

The 12 mm outside diameter is noticeably wider than standard M4 washers, which really spreads the load on softer materials. I measured the thickness at right around 1.0 mm and they sit nice and flat.

Hannah A. ★★★★★

These fit perfectly on my M4 bolts for some custom brackets I'm making, the 12mm outer diameter gives a much better hold. The thickness feels consistent and solid across the whole batch.