From Free Knowledge Base- The DUCK Project: information for everyone
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The machine screw is an element of construction, a type of threaded fastener. The machine screw is an element of construction, a type of threaded fastener. A machine screw is typically designed to be fastened to an existing, tapped hole on a metal surface. Screw bit types:* Slotted * Phillips* Combination* Torx* Star* Hex (internal)* Hex (external)* JIS* Phillips Square* Square
