10MM 40x40x3 SQUARE WASHER 11mm SQUARE HOLE GALV

These Square washers have a square hole to fit under the head of a Cup Head Bolt / Coach bolt to avoid the mushroom head being pulled too far into the timber on tightening. Sizing shown as Inside diameter x Outside Square diameters x Thickness. Inside diameter stated is not the actual ID, it is the shaft it will fit over.

GST Incl
Excl
10MM 40x40x3 SQUARE WASHER 11mm SQUARE HOLE GALV
WSQ10403SQG
Each
$0.6672