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Machine Screws

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Phillips Pan/Flat/Truss Head, Slotted, and Internal & External Sems Machine Screws

  • Phillips Pan Head machine screws have a pan-shaped head with a flat top and vertical sides and are commonly used in electronics.
  • Phillips Flat Head machine screws have a flat top with a conical bearing surface and are commonly used in countersunk holes where the screw head must sit...
  • Slotted Flat Head Machine Screws have a flat head with a single slot on top and are commonly used in woodworking.
  • Combo Round Head Machine Screws have a round head which can be driven using either a Phillips or slotted screwdriver. They are primarily used to fasten...
  • Slotted Round Head Machine Screws have round heads with a single slot on top and are commonly used in woodworking.
  • Phillips Truss Head Machine Screws have a wide head which provides a larger bearing surface and is commonly used to join sheet metal together.
  • Slotted Truss Head Machine Screws have a slotted head requiring a flat-head screwdriver and is commonly used in applications where minimal clearance exists.
  • Phillips Pan Internal Sems machine screws essentially have a ‘pre-assembled’ lock washer beneath the head of the screw which is free-spinning...
  • Phillips Pan External Sems machine screws essentially have a ‘pre-assembled’ lock washer beneath the head of the screw which is free-spinning...