Thread Locking Insert: 1/4-20 Internal Thread, 1/2-13 External Thread, UNC, 31/64" OAL, Self-Lock Wall MPN:335-4

The thread locking insert is the perfect solution to prevent loosening and vibration for 1/4-20 internal threads and 1/2-13 external threads applications due to its UNC class 2A thread tolerance accuracy, meeting or exceeding industry standards. With 3/16 inch overall length it ensures minimum interference with close fitting assemblies while maintaining maximum strength, yet still allowing for easy insertion and removal. Its self-lock wall provides additional gripping torque without over tightening preventing unwanted slippage or movement thus ideal for securing nuts, bolts or other components in critical assemblies needing strong holding power yet allowing adjustments later on when needed while eliminating damaged materials around the threads from repeated loosening and re-tightening actions.