E-Z LOK Knife Thread Inserts for Hard Wood

Knife Thread inserts are designed for use in hard woods, like oak, cherry, and maple. Ideal for use wherever assembly or disassembly could lead to thread erosion or stripping, Knife Thread inserts use a proprietary external “knife” thread to slice into wood and provide superior holding power. http://www.ezlok.com/inserts-for-wood/hard-wood-inserts