Add-On Lock (QR/HD/SD/XD)

SECURE YOUR ADD-ONS WITH EASE AND CONFIDENCE. The Add-On Lock (QR/HD/SD/XD) is a practical accessory designed to secure your Add-Ons to the base rack or another Add-On. It attaches quickly and easily, providing an extra layer of security to prevent theft. Compatible with Quik Rack (QR), Heavy Duty (HD), Super Duty (SD), and Xtreme Duty (XD) models. ━ PRODUCT NOTICES ▶ 15% off with the purchase of another lock.▶ To match your existing key/lock, you may enter your 3-digit key number (found on your key) in the ''Order Comments' field under Shipping at checkout. We’ll do our best to match it if that number is in stock. Example: “Please match key ###"  Do you have multiple locks with mis-matched keys? Check out our 1/4 Turn and Anti-Wobble replacement couplers. ━ KEY FEATURES KEYED ALIKE — multiple locks on the same order will come keyed alike. 1/4-TURN — fast, easy locking with a quick quarter-turn.