1000pc Assorted Box of Spring Washers - 1000 spring steel split lock washers in five metric sizes from M5 up to M12.
Fitted under the nut or the bolt head, the split coil flattens as the joint is tightened and presses back against the fastener, holding tension so it cannot shake loose. They cost next to nothing per joint and go on anything that vibrates, which in practice means most of what comes through a workshop: engine and chassis bolts, guards and brackets, trailer and machinery work.
Box contents (1000 pieces total) 300 x M5 300 x M6 200 x M8 150 x M10 50 x M12
Suitable for Engine and chassis bolts, brackets, guards and mountings, trailers and towing gear, agricultural and plant machinery, fabrication and general workshop assembly
Also known as split washers, lock washers, split lock washers, spring lock washers, or a metric spring washer assortment box.
