Lock Nut Finish Plain Material Stainless Steel Material Grade/Class 18-8 Thread Size 3/8 In.-16 Hex Width 11/16 in Hex Height 15/32 in Lock Type Nylon Insert Dimensional Standards ASME 18.2.1 ASME B18.16.6 Material Quality Standards ASTM A307A System of Measurement Inch Hex Type Heavy Hex Thread Direction Right Hand Color Silver Insert Material Nylon Made in North America No Manufacturer Location Globally Sourced Maximum Temperature 302 Degrees F