Nylon Lock Nut Nylock 18-8 Stainless Steel - 5/16-18 (.502 Flats x .250 Height) Qty-200

Nylon lock nuts are designed to cross thread and prevent the nut from backing off of the threads. Also called stop nuts, these nuts are stainless steel with a nylon insert.

• The insert deforms elastically over the threads of the screw, but threads are not cut into the nylon. The nylon insert locks the nut in two ways. First, it forces the bottom face of the screw threads against the top face of the nut threads, increasing the friction between the two.
• Second, the nylon applies a compressive force against the screw itself. Nylon nuts retain their locking ability up to 250 Degrees F (or 121 Degrees C).
• A lock nut used for fastening to a bolt when mechanically joining materials together. The nylon material located at the top of the nut prevent loosening from vibration or back off.
• We recommend using a stainless steel lubricant or anti seize when installing lock nuts if they need to be removed at any point after installation.