3/8-16 Serrated Flange Hex Lock Nuts Case Hardened HR15N 78/90 Black Zinc and Bake 1/4-20 It is designed to be

It is designed to be used with bolts and screws that have a 7/8-14 thread size

It features a fully threaded shank that provides maximum holding power

It is made from steel and has a hot-dip galvanized finish for corrosion resistance

The zinc coating protects the bolt from rust and other environmental factors

The other end is unthreaded and has a slightly smaller diameter than the threaded end

3/8-16 Serrated Flange Hex Lock Nuts Case Hardened HR15N 78/90 Black Zinc and Bake 1/4-20 It is designed to beThese 3 8 16 Serrated Flange Hex Lock Nuts are made of case hardened HR15N steel and have a black zinc and bake finish. They are designed to provide a secure and vibration resistant connection in a variety of applications. The serrated flange helps to prevent the nut from loosening, even under extreme vibration. These nuts are also RoHS compliant and meet the requirements of ASTM A563 Grade C.