A 5/16" Tri-Groove security nut features a coned, tamper-resistant design with 3 indented slots along the outer diameter. It is primarily installed and removed using a proprietary driver or socket, making it resistant to standard gripping tools like pliers or adjustable wrenches.
The specifications for the 5/16"-18 Tri-Groove Nut are as follows:
- Thread Size: 5/16"-18 Thread Count / Pitch: 18 TPI (Threads Per Inch - Coarse)
- Drive Style: Tri-Groove (also known as Trident, T-Groove, or Coned Trident)
- Driver Socket Size: #30 Tri-Groove Socket
- Outer Width: 0.820"
- Thickness / Height: 0.340"
- Materials: Zamak 5 (Zinc Alloy)