Product categories of Screw, we are specialized manufacturers from China, Anchor Screw, Chipboard Screw suppliers/factory, wholesale high-quality products of Machine Screw R & D and manufacturing, we have the perfect after-sales service and technical support. Look forward to your cooperation!
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China Screw Suppliers
A Screw, or Bolt, is a type of fastener characterized by a helical ridge, known as an external thread , wrapped around a cylinder. Some screw threads are designed to mate with a complementary thread, known as an internal thread, often in the form of a Nut or an object that has the internal thread formed into it. Other screw threads are designed to cut a helical groove in a softer material as the screw is inserted. The most common uses of screws are to hold objects together and to position objects.