1/4-20 Serrated Flange Hex Lock Nuts Case Hardened HR15N 78/90 Black Zinc and Bake M5 This screw is ideal for

This screw is ideal for both indoor and outdoor projects where strength and weather resistance are paramount

The square head prevents the bolt from turning when it is tightened

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

this carriage bolt is suitable for use in construction

5/16-18 x 2 Hex Tap Bolt Grade 8 Fully Threaded Plain is a high-strength fastener designed for demanding applications

1/4-20 Serrated Flange Hex Lock Nuts Case Hardened HR15N 78/90 Black Zinc and Bake M5 This screw is ideal 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.