EVERYTHING ABOUT TYPES OF SCREW HEADS WITH PICTURES

A pentalobe screw-head is really a tamper-resistant security screw. It's a five-level screw head that is usually mistaken to get a torx screw head. It's created of varied sizes and isn't only reasonably priced but available.Brass is made of zinc and copper, and the proportions of both of these components may vary to produce distinct types of brass.