Machine Screw

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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.

Example: Standard Cap Screws

Machine-screw01.png

Example: Standard Machine Screw Head Types

Screw bit types:

  • Slotted
  • Phillips
  • Combination
  • Torx
  • Star
  • Hex (internal)
  • Hex (external)
  • JIS
  • Phillips Square
  • Square

Machine-screw02.png

the standard Computer Case Screw size is 6-32.