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. Used for aircraft and heavy duty industrial applications.

• Original patented worm-gear clamp
• Heavy duty four piece Quadra-Lock construction
• Used for heavy-truck, industrial and aircraft applications
• Features wider 9/16" (14.2 mm) stainless steel band
• Available in a wide variety of materials and screw styles
• NAS 1924 Specification