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Also known as pig nose or twin gap, this screw head has two round holes which have been opposite one another and resemble a pig’s nose. It's a protection-fashion screw to forestall tampering. You'll need a Distinctive spanner screwdriver for this type of screw head.Often is usually regarded by their blue hue. They’re screwed into pilot holes du
All above images are courtesy of Wikipedia, to understand more details on Every type of push head, see the full list of screw generate head types in this article.The beneficial locking solutions make use of a break up pin, a screw, a lock plate, or possibly a tab washer to lock the nut. From the friction method, an extra nut named a lock nut or pos