Serrated inserted self lock design, good shockproof and sealing propertity and avoid from loosing efficiently during usage.
It Widely used in railway, mechanical equipment, mining devices, automobile, etc.
Hex Lock Nuts come with a 100% Satisfaction Guarantee, if you have any problems we will replace them free of charge!
Hex Lock Insert Nut insert lock nut.
Main Color: black
Quantity:120pcs (4#-40 50PCS,6#-32 25PCS,8#-32 25PCS,10#-32 20PCS)
Material: carbon steel and Zinc Plated
Carbon steel with zinc plated, solid frame, anti-rust, long lifetime.