2"-4-1/2 Thin Hex Jam Nuts, Grade 2 Steel, Electro Zinc Plated Clear Finish, Quantity 1 by Fastenere

Jam nuts are used as a second nut "jammed" against the first nut to prevent loosening or in applications where a standard height hex nut will not fit.General Product InformationSize: 2"-4-1/2Drive Size: 3"Height: 1-3/32"Thread Style: CoarseMaterial Type: SteelGrade: Grade 2

• Jam nuts are designed to be tightened against the mating material and then having a finished or heavy hex nut tightened against the jam nut to keep it from loosening.
• Grade 2 is a low carbon steel which conforms to strict chemical composition requirements. This is an industrial purpose grade and your everyday bolt and screw specification.
• Zinc is relatively economical and offers good corrosion resistance in environments not subject to excessive moisture. A clear or blueish chromate finish is applied on top of the zinc to provide additional protection against oxidation.
• An internally threaded fastener that is almost always used with an externally threaded screw, rod, or bolt made of the same or similar material.
• Fastenere branded Jam Nut Meets all Standards which establishes the dimensional, mechanical, and performance requirements of inch and metric Jam Nut suitable for use in joining the component parts of an assembly.