This listing is for one T-Groove security nut.

  • Size: 5/16-18
  • Sold: Individually
  • Socket: 430 (sold separately)
  • Material: 316 Stainless Steel
  • Made in the U.S.A.

T-Groove security nuts feature a tapered diameter, making the nuts resistant to gripping devices. Security nuts are installed using a special T-Groove socket. T-Groove nuts are also referred to as Tri-Groove.

Our T-Groove Security Nuts are made from 316 Stainless Steel right here in the U.S.A. using American stainless steel. The have no sharp edges and are designed to prevent pooling of liquids and debris.

Sizing Info:

  • Nut Size: 5/16-18
  • Top Diameter: .542
  • Bottom Diameter: .830
  • Height: .340
Use T-Groove security nuts anywhere you want to keep what's yours.   Our customer's have used these on everything from construction equipment to automotive LED light bars to bicycle wheels.  Other sizes are available in our eBay store.