1/4-20 Serrated Flange Hex Lock Nuts Case Hardened HR15N 78/90 Black Zinc and Bake M5 Its hex shape allows for

Its hex shape allows for secure tightening with a standard hex key or wrench

this carriage bolt is suitable for use in construction

ensuring they can withstand high torque and shear forces

6mm thread pitch

meaning they do not have a coating or finish

1/4-20 Serrated Flange Hex Lock Nuts Case Hardened HR15N 78/90 Black Zinc and Bake M5 Its hex shape allows forThese 1 4 20 Serrated Flange Hex Lock Nuts are made of case hardened HR15N steel and feature a black zinc and bake finish. They have a serrated flange that helps to prevent loosening and a hex head for easy installation. These lock nuts are ideal for use in a variety of applications, including automotive, construction, and manufacturing. They meet the specifications of ASTM A563 Grade C and are RoHS compliant.