E-Z LOK E-Z Lok 400-4 Threaded Insert, Brass, Knife Thread, 1/4"-20 Internal Threads, 0.500" Length (Pack of 25)

Size:Knife Thread, 1/4"" E-Z LOK Knife Thread inserts for hard wood significantly reduce the possibility of stripping when using a threaded fasteners in materials such as oak, cherry, and maple. Ideal for applications ranging from furniture to cabinetry to tap handles, E-Z LOK Knife Threads are easily installed using a bolt and jam nut or optional drive tool. Simply drill the appropriately sized hole and thread in the insert like an ordinary fastener. Proprietary external Knife Threads slice into hard wood, providing holding power superior to that of typical broad threads which crush wood during installation.