Heli-Coil R11855 5/16-18 Inserts/Pk 12<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Price For: Each Rockwell Hardness: C43-C50 Item: Helical Insert Thread Direction: Right Hand Application: For Metal Type: Free Running Helical Tensile Strength (PSI): 200， 000 to 250， 000 Type: Free Running Helical Material: 304 Stainless Steel Internal Thread Size: 5/16-18 Thread Type: UNC Length: 0.469" Free Coil Dia.: 0.390" Tap Sizes: 5/16-18 STI Drill Size: Q</li><li>Tensile Strength (PSI): 200， 000 to 250， 000 Meets/Exceeds: - Country of Origin (subject to change): United States</li></ul></div><img src="http://ecx.images-amazon.com/images/I/518dy7Bi6gL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31u94Hs4LPL.jpg" noproxy>