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Aspen Fasteners
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Sems Screws - Internal Tooth Sems
Hex Indented Washer, No Slot Hex Indented Washer, Slotted
Sems Screws - Internal Tooth Sems - Hex Indented Washer, No Slot
Sems Screws - Internal Tooth Sems - Hex Indented Washer, Slotted
Pan 6-Lobe Drive Pan Phillips Drive
Sems Screws - Internal Tooth Sems - Pan 6-Lobe Drive
Sems Screws - Internal Tooth Sems - Pan Phillips Drive
Pan Slot Drive
Sems Screws - Internal Tooth Sems - Pan Slot Drive

Advantages of Internal Tooth Sems Screws

  • Generates and maintains tension
  • Absorbs torque and prevents slipping
  • Opposes loosening rotation of the screw
  • Absorbs shock and vibration
  • Ideal for smaller screw heads (such as fillister heads)
  • Where teeth need to be hidden for function and/or aesthetics
  • Reduces snagging or scratching
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