Back Home / Fasteners / Nuts / LOCK NUT NYLON UNF ZINC 7/8″-14 GR 8 LOCK NUT NYLON UNF ZINC 7/8″-14 GR 8 SKU: X8LN7814 Categories: Fasteners, Nuts Hex nut with a nylon-filled collar at its back end When a screw reaches the collar, the threads and nylon engage for a tight, frictional fit Restricts movement of the screw when it is subjected to vibration. Designed to be used in structural application with Grade 8 cap screws or bolts Applications include engines, turbines, hydraulic cylinders, railroads and aerospace Nylon inserts nuts are not designed to be used at temperatures over 250° F Made from heat treated steel Proof load: 150,000 psi Size: 7/8″-14 Yellow zinc plated Case Quantity: 10 Log In For Pricing