Extra long, heavy walled hub prevents springing under full recommended load. Square head is designed to be turned with a wrench or a 4 / 8point socket due to high load capacity. Meets or exceeds us federal spec. GGG-C-406D.
10 x 3.5 x 22.6 inches
Armstrong 78-080 8-1/4 in. Heavy Duty Pattern C-Clamp