Install using Utility Lock (threaded stud) onto Core Trax System (ALLOWS FOR FLEXIBILITY TO RELOCATE STRAP) Determine a suitable location on your Core Trax System based upon your load. Follow instructions 1-4 under Utility Lock attachment. Place Cobra Retractable Strap base onto the threaded stud using the .50” mounting hole. Thread the locking nut onto the threaded stud, securing the Cobra Retractable Strap. Install using standard bolt, washer, and nut (mounting hardware not included) (PERMANENT PLACEMENT) Choosing the location to mount the Cobra Retractable Strap is your discretion based upon your needs. Select a location which provides structural support for mounting and will meet your overall tie down needs. You will need access to the back/under side of the mounting surface to allow for bolt-through installation to secure Retractable Strap with bolt, washer, and lock nut. CAUTION: Check the back/under side of mounting surface to be certain you will not damage anything when drilling through the mounting surface. NOTE: The overall strength of the Cobra Retractable Strap is subject to the integrity of the mounting surface therefore it is recommended you choose a suitable structural surface. Drill through the mounting surface. Place Cobra Retractable Strap over the hole you just drilled (aligning mounting hole in base of Retractable Strap with hole in mounting surface) Insert machine screw through the Retractable Strap base and mounting surface. Place a washer and lock nut on the screw and tighten. NOTES: MOUNTING HARDWARE NOT INCLUDED WITH COBRA RETRACTABLE STRAP. Recommended hardware is Grade 10 (or stronger), 7/16” Machine Screw, washer and locking nut. No less than 3/8” hardware should be used. Use of Cobra Retractable Strap: Squeeze release handle and raise to 90 degrees, locking the handle in up position (allowing the strap to extend and retract freely). Pull out the S-hook strap and connect to secure anchoring points/tie downs. Return to mounted retractable strap and lower handle. Using main handle, pump up and down until desired tension on strap is achieved. Lower Ratchet handle down flat (closed position) for transit. Squeeze release handle and raise to 90 degrees, locking the handle in up position to loosen strap for adjusting/removal with its easy retract feature. CAUTION: DO NOT ALLOW STRAP AND S-HOOK TO RETRACT WITHOUT GUIDANCE AS DOING SO CAN CAUSE INJURY OR  DAMAGE BY FAST MOVING STRAP AND HARDWARE. NOTES: Loads shift & settle; inspect after 10 miles; then every 40/50 miles thereafter (inspect in shorter intervals if on rough/bumpy roads or inclement weather). Make sure all connecting points on vehicle are secure. WARNING: Inspect product before each use. DO NOT USE: If product is deformed, worn, damaged, rusted or not securely installed. Avoid contact with sharp objects, flame or chemicals that may damage or weaken product, as these conditions may result in severe DAMAGE to persons or property. Product is NOT designed nor to be used as a personal restraint, or towing device. USER assumes full responsible for determining product’s safe condition and suitability for a particular purpose. NOTICE TO PURCHASER: Core Brands is not responsible for damage or injury caused by improper use of products.