Tuff-Torq® - Hex Cap Screw, Grade 8, Alloy Steel, Zinc Finish, 5/16-18 x 1-1/4 " (Pack of 100)

• Most versatile, best value for standard maintenance operations • High-strength matched component fastening system • Fatigue/vibration-resistant UNJ thread design • 20% higher-than-normal wrenching surface for increased safety and even distribution of torque forces • Heat-treated, quenched and tempered • Perma Plated for superior corrosion protection • Proprietary head marking for improved traceability • Trailing thread does not enter the extrusion angle • Increased length of chamfer allows easier alignment and assembly • Matched strength nuts, flat washers and lock nuts available • Minimum 150,000 PSI tensile strength • Manufactured to meet or exceed Grade 8 strength requirements Minimum Threaded Length – Up to 6" Long: (2 x Diameter) + 1/4"; Over 6" Long: (2 x Diameter) + 1/2"