Countersunk 2-Hole Metal Thread Screw

2-Hole Metal Thread Screws are also known as 'snake eye' or 'pig nose' security screws. The 2 hole system requires a special 2-pin insert bit to install and remove (via low to medium torque applications). The Countersunk head provides a flush aesthetic finish, suitable for correctional facilities, defence government and other unique applications.


  • Metric: Dia M3 - M6 & Lengths 8mm - 40mm
  • Imperial: Dia 6-32" - 1/4" & Lengths 3/8" - 2"
  • Threads: Metric Coarse, Imperial UNC
  • Head Style: Countersunk, Raised Countersunk
  • Material/Finish: Stainless Steel
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