Tuff-Torq® - Hex Nut, Grade 8, Zinc Finish, Alloy Steel, 3/8-16 (Pack of 100)

• High-strength fine grain steel • Three-stage heat treating • Full finished nut dimensions • Improved torque reliability • Greater load consistency • Six equally-spaced radial lines and Lawson logos identify matched strength Tuff-Torq® Nuts • Meets SAE J995 Grade 8 strength requirements • ANSI Class 2B thread fit • Specifically designed for use with Lawson’s Tuff-Torq® Cap Screws to provide a matched strength fastening system