Lock Nuts

Nylon element nuts, commonly called Nylocs, work by elastic deformation of the nylon portion of the nut against the male thread. Nyloc nuts interference fit prevents loosening under vibration and may also provide some damping. PitStopUSA.com carries steel and stainless steel nyloc nuts in a variety of sizes including thin nyloc nuts that have the same features as standard size nyloc nuts and weigh up to 50 percent less making them very popular for racing applications. Nylon insert allows nut to be installed and removed many times, without damaging threads. Nylon element nuts have temperature limitations so they are not recommended around hot engine, exhaust or drivetrain applications.

Mechanical lock nuts work by elastic deformation of a portion of the nut against the male thread. Nylon element nuts commonly called Nylocs have temperature limitations so mechanical locking nuts are preferred in some high heat applications and PitStopUSA.com has a variety to choose from.

Spin Lock Nuts from PitStopUSA.com have a built-in washer with a serrated face to lock nut tight against panels. They are commonly used as a backer nut with body bolts, nose bolts, and body stud kits.