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A Disc-detainer (or disc lock, disk lock) is a lock design that uses rotating discs as locking components. In most designs the discs interface with a sidebar when properly rotated to allow them to actuate the l...
... board or batt insulation onto self-stick or perforated base pins. It also could be used with CD weld pins or lacing anchors. 1-1/2" round lock washers are commonly made from 0.5mm stainless steel or ga...