The original perforated stainless steel worm-gear clamp. Heavy duty four-piece Quadra-Lock construction enables far more tightening torque to be delivered to the band perforations. Use for aircraft and heavy-duty industrial applications. 9/16" (14.2 mm) band 5/16" (7.9 mm) slotted hex screw Per SAE standard J1508 Type ?F? |