Description HEX JAM NUT DIN 439. A Hex jam nut is a low profile type of nut, typically half as tall as a standard nut. It is commonly used as a type of lock nut, where it is “jammed” up against a standard nut to lock the two in place. It is also used in situations where a standard nut would not fit. AVAILABLE SIZE: M12 – M42 AVAILABLE FINISH: HOT DIP GALVA / BLACK / GI (ELECTRO GALVANIZED)
