Lock Nuts

Paulin 1/2-13-inch Finished Hex Nut - Zinc Plated - Grade 5 - UNC

Hex Nuts are used for fastening to a hex head cap screw or bolt when mechanically joining materials together. Grade 5 hex nuts are medium strength for applications requiring higher load, tensile or shear strength such as children's playgrounds. Made from medium carbon steel, quenched and tempered for higher strength. Steel is zinc plated for moderate protection against rust. Use grade 5 hex nuts with grade 5 hex head cap screws or hex bolts.

Paulin M4-0.70 Metric Pozi-Lok-Nylon Insert Stop Nut - Zinc Plated

Made from medium carbon steel, tempered and zinc plated. Best for areas where high strength is desired. Similar in strength to SAE Grade 5.

Paulin #6-32-inch Nylon Insert Stop Nuts - 18.8 Stainless Steel - UNC - 8pcs

Nylon insert lock nuts have a nylon nylon material located at the top of the nut. The bolt threads into the nylon material which helps prevent loosening from vibration. These prevailing torque lock nuts offer excellent vibration resistance and positive locking under severe shock. The nylon collar prevents liquid seepage and internal corrosion. Compressive forces exert constant friction grip on the bolt and prevent loosening. Nuts may be reused. Use stainless steel where corrorsion is and rust is of concern or in exterior applications. Best for general hardware use or where high strength is not required.

Paulin 3/4-10-inch Nylon Insert Stop Nut - Pozi-Lok - Zinc Plated - Grade 5 - UNC

Nylon insert lock nuts have a nylon nylon material located at the top of the nut. The bolt threads into the nylon material which helps prevent loosening from vibration. These prevailing torque lock nuts offer excellent vibration resistance and positive locking under severe shock. The nylon collar prevents liquid seepage and internal corrosion. Compressive forces exert constant friction grip on the bolt and prevent loosening. Nuts may be reused. Steel is zinc plated for moderate protection against rust.