Main Color: Silver Tone; Material: 304 Stainless Steel; Weight: 33g; Outer Thread Diameter: 7.8mm / 0.31"; Inner Thread Size: 1/4"-20; Number of Turns: 8.6. 304 Stainless Steel Material, Wire Thread Repair Inserts.. threaded insert 304 stainless steel are used to replace old striped out or cross thread holes.. Drill a specified hole, the hole and insert the coil for a complete installation.. Widely used in steam turbines, electronic communications, computers, lamps, mechanical equipment, radiators, and 3D prints equipment..
