Helical Insert Free Running 304 Stainless Steel Internal Thread Size 2-56 Thread Type UNC Thread Direction Right Hand Length 0.172 In Free Coil Dia 0.145 In Tap Sizes 2-56 STI Aluminum Drill Size 3/32 In Tensile Strength 200 000 to 250 000 PSI Rockwell Hardness C43-C50 For Metal Package Quantity 100