This threaded insert is for use on aluminum and metal. It has a 200,000 to 250,000 PSI tensile strength and a Rockwell Hardness Scale rating of 43 to 50. This insert is 20 millimetres long, with a M10-1.5 internal thread, a 10.5-millimetre drill size, and a right hand thread direction. This threaded insert is made from stainless steel and comes in a pack of 100.