{"product_id":"master-lock-chrome-puck-lock-heavy-duty-hidden-shackle-secure-fit","title":"Master Lock Chrome Puck Lock Heavy Duty Hidden Shackle - Secure Fit","description":"\u003cp\u003eIn this review the Master Lock Chrome Puck Lock is evaluated as a heavy duty keyed padlock and hasp combination aimed at securing moving trucks, trailers, vans and sliding doors. The single biggest reason to buy is its \u003cstrong\u003ehidden shackle design\u003c\/strong\u003e, which largely removes shackle exposure and improves resistance to bolt cutters while the zinc plated solid steel construction gives real corrosion resistance for indoor or outdoor use.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHidden shackle:\u003c\/strong\u003e Keeps the shackle out of sight and reduces the risk of bolt cutter attacks, improving physical security for doors and gates.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eZinc plated solid steel:\u003c\/strong\u003e The lock and 9-1\/16 in hasp are built for strength and corrosion resistance, suitable for outdoor mounting on vehicles and buildings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFive-pin cylinder:\u003c\/strong\u003e Provides solid pick resistance so the lock resists simple manipulation and unwanted entry attempts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKey retaining safeguard:\u003c\/strong\u003e Ensures the padlock is not left unlocked by retaining the key when the lock is open, helping prevent accidental unsecured doors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes hardware essentials:\u003c\/strong\u003e The set ships with one padlock, two keys and a high security hasp sized for common sliding door installations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis lock is best for owners of moving trucks, cargo vans, trailers or buildings with sliding doors who want a compact, robust solution to protect contents. Installers who can measure door backset, cross bore and thickness ahead of purchase will get the best fit and security from the included 9-1\/16 in hasp.\u003c\/p\u003e\n\u003cp\u003eCustomers who need a lightweight travel padlock, electronic entry or a lock that fits unusual or very thin doors should look elsewhere, since this set is optimized for heavy duty vehicle and sliding door setups and requires appropriate carriage bolts for mounting.\u003c\/p\u003e\n\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSturdy zinc plated steel construction offers reliable corrosion resistance and strength.\u003c\/li\u003e\n\u003cli\u003eHidden shackle design meaningfully reduces vulnerability to bolt cutters.\u003c\/li\u003e\n\u003cli\u003eFive-pin cylinder and key retaining feature increase pick resistance and prevent leaving the lock unlocked.\u003c\/li\u003e\n\u003cli\u003eGood value for a complete padlock and 9-1\/16 in hasp package with two keys included.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRequires measuring door backset, cross bore and thickness to ensure proper fit and may need specific carriage bolts for installation.\u003c\/li\u003e\n\u003cli\u003eSome users report mixed experiences with ease of locking and unlocking under certain door or hasp alignments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct type\u003c\/td\u003e\n\u003ctd\u003eHidden shackle padlock with hasp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHasp length\u003c\/td\u003e\n\u003ctd\u003e9-1\/16 in (23 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLock body diameter\u003c\/td\u003e\n\u003ctd\u003e2-7\/8 in (73 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eZinc plated solid steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKeying and cylinder\u003c\/td\u003e\n\u003ctd\u003eFive-pin cylinder, key retaining\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003eOne padlock, one hasp, two keys\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended fasteners\u003c\/td\u003e\n\u003ctd\u003e3\/8 in carriage bolts (not included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Master Lock Chrome Puck Lock is a solid choice for securing trucks, trailers and sliding doors where a heavy duty, corrosion resistant lock is required. Its \u003cstrong\u003ehidden shackle design\u003c\/strong\u003e and five-pin cylinder make it a practical, good value option for users who measure their door dimensions ahead of purchase and can install with proper carriage bolts.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs this lock weather resistant?\u003c\/strong\u003e\u003cbr\u003eYes, the zinc plated solid steel construction provides corrosion resistance suitable for indoor and outdoor use.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat mounting hardware is needed?\u003c\/strong\u003e\u003cbr\u003eThe hasp is 9-1\/16 in long and the manufacturer recommends 3\/8 in carriage bolts for installation; bolts are not included.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it fit any sliding door?\u003c\/strong\u003e\u003cbr\u003eIt fits many sliding doors for trucks, vans and buildings but you must measure door backset, cross bore and thickness to ensure proper fit.\u003c\/p\u003e","brand":"Master Lock","offers":[{"title":"Default Title","offer_id":48618954653915,"sku":"B002DY7DRY","price":42.07,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/81G-lZXgCTL._AC_SL1500.jpg?v=1778487227","url":"https:\/\/gearmusthave.com\/products\/master-lock-chrome-puck-lock-heavy-duty-hidden-shackle-secure-fit","provider":"GearMustHave","version":"1.0","type":"link"}