Kupo Nylon Locking Nut for 14 to 20

The Kupo KS-176 is a hexagonal nylon-insert locking nut sized for a 1/4"-20 thread, sold as a set of five and weighing 45g total. The nylon insert grips the mating thread to resist vibration-induced loosening, making it a handy spare for securing camera and lighting hardware that needs to stay put through a long shoot day.