Sirius 12.9 Grade Socket Head Cap Screws UNC

This variant of the Sirius 12.9 Grade Socket Head Cap Screws is sized at 1/4 UNC diameter x 1-3/4" length, supplied in a pack of 200. An extended-length option for 1/4 UNC fastenings in deeper through-bolt applications or where additional shank length is required for assembly clearance. Features and Benefits: • Grade 12.9 high tensile alloy steel construction • UNC thread for secure, compatible fastening • Internal hex socket head for high torque drive • Compact head profile