We consider a master shackle lock to be a worthy investment in the long run. Let’s take you step by step, type by type, and find the best master shackle lock for you.

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Our Top Picks:

Best Overall: Buy: Master Shackle Lock READ REVIEW

Best With Great Customer Service: Buy: Master Lock Trailer Lock READ REVIEW

Best With Probably Better Options: Buy: Master Lock One Lock READ REVIEW

Best For Tackle Boxes: Buy: Master Lock Sturdy Lock READ REVIEW

Best With Long Neck: Buy: Master Lock Awesome Lock READ REVIEW

Best For Country Of Manufacture: Buy: Master Lock Great Lock READ REVIEW

Best For Outdoors: Buy: Master Lock Best Lock READ REVIEW

Best For Heavy Duty Trailers: Buy: Master Lock Solid Lock READ REVIEW

Best For Transportation: Buy: Master Shackle Lock READ REVIEW

Best For Super Tough Locks: Buy: Master Shackle Lock READ REVIEW

Best For Peace Of Mind: Buy: Master Lock Good Lock READ REVIEW

Best With Locking Mechanism: Buy: Master Lock Decent Lock READ REVIEW

Best Overall: Master Shackle Lock

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We are personally inclined towards the Master Shackle Lock, It is not so pricy, but it overachieves its purpose and is outstanding in important aspects. The master shackle lock is highly recommend, it works great and has an excellent design. You will receive 4 keys with your order. These high - security pro series padlocks feature a "bolt cutter tough", fully shielded hardened steel shackle that has pry resistant features and is virtually impossible to cut.

The lock is also available with the bumpstop technology. Further, the lock is for two (2) high security hasps and two (2) keys alike hidden shackle padlocks. Most importantly, the master shacklelock is great for securing, It is very secure and has a special design.

Almost all customers quickly discovered that the lock is easy to install..but after all are weird. Moreover, they say that the lock comes with bolts washers or nuts. Also, a few say that this lock has only 5 pins, none of which happen to even be security pins, and there have been absolutely zero measures taken place to help deter lock picking this lock. In short, many have used the mastershackle lock for more than a few months without any issues, and it shows no sign of giving up.

• You will receive two complete sets and four keys.
• The hasp is the rectangular frame the lock sits in so its self - contained.
• This works as advertised, It is ideal for very heavy duty and has technological design.
• The actual lock is protected and they ca n't break the lock that easily.

Best With Great Customer Service: Master Lock Trailer Lock

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If you often find yourself confused about the appropriate and satisfactory lock, this product is your end point. The Master Lock Trailer Lock is designed for indoor use, It is unique and has a technological design. To ensure you get two 2-packs keyed alike, you must order the 4-pack. These locks offer ideal protection against bolt cutter attacks.

The lock is very good and makes for a great company, It has secure locks and has a clean design. Finally, the master lock trailer lock secures your property, makes for solid construction, It has spool pins and has specifications design.

Most customers agree that the lock is a great lock for someone who would make it work with their lock bracket that would fit the back side slot on the padlock. Furthermore, a few also found that the lock is designed to fit over a hasp. In addition, they strongly agree that this lock works great on all mobile enclosed trailers, and most carry trucks. So, customers were eager to recommend it to friends and families.

• This fits the 2019 aluma enclosed trailer perfectly.
• If you order two 2-packs, they will not necessarily be keyed the same.
• This is good for storage sheds with hasp.
• This is as good as it gets, tho, for padlocks.

Best With Probably Better Options: Master Lock One Lock

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Compared with other products by Master Lock, the master lock lock has a convenient design. The master lock lock is great for moving, makes for an overall great deal, It is for indoors and has a specifications design. Make sure this fits by entering your model number. And, this would be perfect with product description, is handy, it is reliable and has an excellent design.

The lock is best used for residential gates & fences, sheds, workshops & garages, tool boxes and more. Further, it works with very functional locks, It is great with a locking bar and has a durable design. Lastly, the master lock lock includes one padlock with two keys.

Almost all buyers opine that the lock is a certain style key. Also, a few also found that the lock can be used on gates outside, held up okay ... ish. Moreover, they also found that the faulty lock, or somehow prove that it was defective. Overall, many have used the lock for more than a few months without letup, and it shows no sign of giving up.

• This is a great lock for beginner lock pickers.
• This is sliced open and maybe somebody removed the extra keys.
• This will get the job done.
• This is manufactured in Milwaukee, USA with final assembly/packaging in Mexico.

Best For Tackle Boxes: Master Lock Sturdy Lock

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If you often find yourself scrambling for an appropriate and satisfactory lock, this product should be your first option for buying. The Master Lock Sturdy Lock is perfect for the right size, It has nice locks and has a durable design. . Also, it is portable, is very solid, it is made of good quality and has a secure lock design.

Finally, the master lock sturdy lock feels strong, allows for easy key operation, It serves its purpose and has a safe design.

Almost all customers opine that the lock can be cut off so for true protection but keeps the honest, honest. Further, a few strongly agree that the lock is great with the aqua sentry hose bib lock. Moreover, a few strongly agree that these locks are exactly what is needed to lock a utility trailer hitch. Overall, the tone of buyers is very positive and we believe that the lock suits the purpose.

• This is a great lock longer for hard to reach doors/places.
• This lock has a longer loop for items that require more space.
• This looks like a really well-built lock.
• This is built to last a lifetime.

Best With Long Neck: Master Lock Awesome Lock

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The Master Lock Awesome Lock is the most convenient product on the market today. The master lock awesome lock is very effective, is indoor, it is effective and has a reliable design. . Also, it fits right for the right size and it is great with great quality.

The lock is very strong, it has included components and has a solid design. Further, the lock slides easily, It is for indoors and has a simple design. Most importantly, the master lock awesome lock is perfect for extra security, is best for outdoor use, It is delicate and has an excellent design.

Almost all customers agree that the lock fits across the door handles perfectly. Moreover, they say that the lock is a nice feature but not a major advantage. In addition, they also found that the lock fits thru the hole that has a clip pin that retains the bar to the rack and can be removed easily. So, buyers were eager to recommend it to friends and families.

• One padlock, two keys (matching color key head for added convenience).
• This is perfect for locking owners ' things in cabinets above the refrigerator.
• This worked perfectly and it is used for low security.
• This is best used for backpacks, briefcases, tackle boxes, lockers and storage locks.

Best For Country Of Manufacture: Master Lock Great Lock

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The Master Lock Great Lock's material feels more premium than its price would suggest. The master lock lock is affordable, it is reliable and has a secured design. . And, this is great for customer service, it works fine and has a secure lock design.

Above all, the master lock lock allows for superior strength, is keyed differently. It is suitable for outdoor use and has a solid design.

Almost all customers opine that the lock provides maximum application flexibility. In addition, a few strongly agree that the lock is easy to pick, so this is more to keep honest people honest. Further, they say that this lock is long enough to fit through the handles of the doors. Obviously, this lock passed the test and had very satisfied buyers eager to share their experience.

• Adjustable and removeable 9/32-inch diameter steel shackle.
• This is pretty light weight, and comes with a better key.
• This is the perfect lock for locking two cabinet doors together.
• It works, but not as easy as a non-pass through lock.

Best For Outdoors: Master Lock Best Lock

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The master lock lock is suitable and reliable and fits well with your daily use. The master lock lock features a laminated steel body and a hardened steel shackle for strength and security. Manufacturer says: As the global manufacturer and marketer of padlocks, we continue to build our founder’s passion for innovation, quality, and compelling value into our expanding lines of security solutions. This over the master lock 3dlh laminated padlock with key features 1 - 9/16 in.

The lock is very durable, works well with name brand, It is suitable for gym lockers and has a secure lock design. Also, the lock is made of hardened, is designed for small size, It is reliable and has a solid design. Above all, the master lock lock is very secure, priced right, it is even better and has a durable design.

Most buyers agree that the lock fits for the intended use. In addition to that, it is easily picked open. In addition, they strongly agree that the lock can be cut with a bolt cutter. Also, they also found that the lock was an excellent lock at a good price. Overall, for almost all customers, it was just what they wanted.

• This is a lock, not the most safe in the world, but it looks sturdy.
• This fits even with the wrong size, It makes for a great company and has a safe design.
• This works for needing a deep lock.

Best For Heavy Duty Trailers: Master Lock Solid Lock

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The Master Lock Solid Lock is suitable and reliable and fits well with your daily purpose. The master lock solid lock works for important note, works as advertised, It is very nice and has a solid design. You can order up to eight lock keys. These padlocks are ideal for all outdoor applications when needing multiple locks that utilize only one key.

The lock is for two (2) padlocks keyed alike (same the key unlocks both) and four keys. Above all, the master lock solid lock is worth the money, It is really nice and has technological design.

Most customers find that the lock comes with two keys, and while the locks are unlocked, the keys are retained in the lock. Moreover, a few say that the lock is perfect after easily removing the extra sleeves. Also, a few also found that this is a very good lock. it 's not chiuaua proof, so beware. In short, the tone of buyers is very positive and we believe that the lock suits the purpose.

• This can be defeated if someone wants to defeat them.
• The lock is also available with bump stop technology. Search 37nka in our storefront.
• This lock is made very well and should keep out most attempts.
• This is easy to pick like most master locks.

Best For Transportation: Master Shackle Lock

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The Master Shackle Lock is capable of outshining several other products featured in this list in overall features in its price range. The master shacklelock has matching keys, has secure locks, It is ideal for transportation and has a durable design. . Also, it has good locks and it is great for industrial uses.

The lock is great for storage locker,s is great for customer service, It allows for very secure locks and has a solid design. Further, the lock is very durable, it is substantial and has a technological design. Lastly, the mastershackle lock is designed for commercial/industrial applications.

Most buyers found that the lock can slide on all three padlock mechanisms. Also, they strongly agree that the locks that come with them are really cheap and break off easily. Also, a few say that the bump stop is also a better lock because it can not be easily picked with a bump key.

• These locks feature bumpstop advanced cylinder technology (for explanation see more product details below).
• This offers impossible to cut and pry resistance features.
• This is ideal for a utility trailer that has a side door and back ramp.
• This has to be right on, because there is no room for error at all.

Best For Super Tough Locks: Master Shackle Lock

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If you often find yourself scrambling for an appropriate and satisfactory lock, this product is your solution. The Master Shackle Lock can do for customer service, is great for high performance, It comes with great service and has a solid design. Lock bumping is a surprisingly simple method of breaking in through locked doors and padlocks. These locks feature the bumpstop advanced cylinder technology.

The lock is undoubtedly the newest emerging threat to personal property security. Moreover, the lock comes with excellent quality and has a durable design. Finally, the master shackle lock comes with great customer support and has an innovative design.

Almost all buyers agree that the lock can be opened in seconds with a rake. Moreover, a few strongly agree that the " lock fits all” feature of Nice. Moreover, a few also found that this lock is very robust. However, any freeze and thaw cycle requires the use of a torch or hair dryer to unlock the tumbler. Overall, many buyers have used the lock for more than a few months without letup, and it shows no sign of giving up.

• This is built for super tough locks, It is unique and has a simple design.
• The lock is cool, easy to use and does its job.
• Good brand reputation.

Best For Peace Of Mind: Master Lock Good Lock

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The master lock lock is capable of outshining several other products featured in this list in overall features for the price point. The master lock lock is great for a gun case and it is compatible with part number. The lifetime guarantee provides peace of mind from a brand you know and can trust. The master lock magnum m1xq laminated padlocks with keys feature 1 - 3/4 in.

Most importantly, a master lock, a good lock that comes with a key, is best used for outdoor storage and fences, self-storage units & lockers, tools, job boxes and more.

Most buyers quickly discovered that the lock is a good pack of locks for their size and price point. And, they also found that the keys the lock comes with are of high quality as well. To sum up, the tone of buyers is very positive and we believe that the lock suits the purpose.

• This has matching keys, locks well and it has strong locks.
• There are four padlocks with two keys; both keys open all the locks.
• This allows for very good quality, is practical and it is used for good buying.
• This features dual armor construction plus includes four padlocks, two keys.

Best With Locking Mechanism: Master Lock Decent Lock

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Best part: Master Lock Decent Lock costs comparatively low and it is available to ship in 24 hours. The master lock decent lock provides strong cut resistance additionally provides maximum application flexibility. 1-3/4-inch wide laminated steel lock with a standard steel adjustable shackle. In addition, this would be perfect with a locking mechanism and it is perfect for gym locker.s.

The lock is dependable and has a durable design. And, it is good for the country of manufacture, is used for perfect size, it is good for fast delivery and has a solid design. Lastly, the master lock decent lock is very durable, It fits the bill and has an excellent design.

Almost all buyers opine that the lock is a perfect solution for some special applications. Moreover, a few also found that the lock would rust or break or something. Moreover, a few also found that the lock fits perfectly around the handle. Overall, buyers found this to be one of the best locks for daily purposes.

• Removable adjustable shackles provide maximum application flexibility.
• An adjustable shackle ensures a snug fit to the locked item.
• Warded locking mechanism minimizes jamming from dirt and grime.
• Shackle length adjusted from 5/8-inch to 2-inch.