• Tapered diameter resistant to gripping devices
• Driven by three grooves on the outside of the nut
• They are also known as Trident Drive Nuts, T-Groove Nuts, and Tri Groove Nuts
• Installed using a special tri groove socket
• Marine Grade 316 Stainless Steel is suitable in harsh environments
• Commonly used on boats, docks, piers and pools

Tri Groove security nuts feature a tapered diameter, making the nuts resistant to gripping devices. They are installed using a special Tri Groove socket, which grips the indentations along the outside of the fastener to turn the nut along a thread.

Tri Groove Nuts are commonly used with driver-less fasteners, such as carriage bolts or concrete anchors for a secure assembly. If the nut is not easily accessible, the fastener assembly will be harder to be tampered with. Security Nuts are commonly used in public outdoor applications including campsites, parks, playgrounds, benches, cars and roof top tents. Stainless Steel Security Nuts are perfect for this type of application since they are rust and corrosion resistant.