Back Home / Fasteners / KNIFE THREAD INSERT UNC 1/4″-20 BRASS 1/2″ LONG, PACK OF 25 KNIFE THREAD INSERT UNC 1/4″-20 BRASS 1/2″ LONG, PACK OF 25 SKU: XKTI1420 Category: Fasteners Screws into pilot holes in wooden mounting surfaces and provide a female-threaded mounting point Commonly used with delicate or expensive woods that would deteriorate over time from the tightening and loosening of conventional wood screws. feature specialized threads that bite into the wood and provide their holding power. OAL 1/2″ Case Quantity: 1 Log In For Pricing