Briggs & Stratton Hex Nylon Insert Lock Nut

The Briggs & Stratton hex nylon insert lock nut (also called a nyloc nut or prevailing torque lock nut) is a hex fastener for securing bolts and studs on outdoor power equipment and small engines. A nylon ring in the nut grips the bolt threads, so the nut resists loosening from vibration.

Key Features:

• Hex head design fits standard wrenches and sockets
• Nylon insert creates friction on the threads to help keep the nut from backing off
• Helps keep fastened components secure when the equipment is running
• Made by Briggs & Stratton, a name known for small engine and outdoor power equipment parts

Use this lock nut wherever a vibration-resistant fastener is needed during repair, maintenance, or reassembly. Each size in this product line has its own part number.