FJM Security Chrome Padlock

Last updated date: February 19, 2020

DWYM Score
9.5


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We looked at the top Heavy Duty Padlocks and dug through the reviews from some of the most popular review sites. Through this analysis, we've determined the best Heavy Duty Padlock you should buy.

Overall Take

The design of the FJM Security Chrome Padlock removes the use of a spring, which is a weak point in some styles of padlocks. This security is matched by chrome-plated metal that withstands outdoor elements very well. In our analysis of 17 expert reviews, the FJM Security FJM Security Chrome Padlock placed 2nd when we looked at the top 8 products in the category. For the full ranking, see below.

Editor's Note February 19, 2020:
Checkout The Best Heavy Duty Padlock for a detailed review of all the top heavy duty padlocks.

Expert Summarized Score
9.9
3 expert reviews
User Summarized Score
8.6
258 user reviews
Our Favorite Video Reviews
What experts liked
Constructed out of durable hardened steel and is triple chrome plated making the lock uniquely suited to outdoor and marine environmentsPadlock is heel toe locking with a freely rotating hardened steel shackle leaving no weak spots on the lock, this prevents attacks by cutting or sawing
- Booms Beat
It can not be easily cut or sawed owing to the freely rotating shackle. Moreover, it is ideal for gates and storage units because of its D shape.
- Locksmith Nerd
There aren’t weak spots on the lock, so it can’t be easily cut or sawed
- Ready Zeal
What experts didn't like
Comparatively smaller in size
- Locksmith Nerd
Picking resistance is low due to the discs not containing false gates
- Ready Zeal

From The Manufacturer

With FJM Heavy Duty Padlocks you can be assured of the high security and durability our locks will provide. Feel the solid composition of weight in your hand. Turn the key and note that the motion is smooth with no spring loaded parts to bind or wear out over time. These high security padlocks come with 4 European high security style keys that are very hard to duplicate keeping your lock secure from others copying the keys. The FJM Security SPSA80 Keyed Alike D-shaped security padlock has a freely rotating, 3/8 inch hardened steel shackle that can be applied vertically or horizontally on storage or shipping containers. The shackle has no springs to bind up or corrode over time. The SPSA high security padlock grants very little access for bolt cutters or saws and features a hardened steel, chrome plated bolt that rotates freely indeed making this lock live up to its name as a "Jimmy Proof" style high security padlock!

Overall Product Rankings

1. ABUS Stainless Steel Padlock
Overall Score: 9.6
Expert Reviews: 4
2. FJM Security Chrome Padlock
Overall Score: 9.5
Expert Reviews: 3
3. Schlage Solid Steel Padlock, 2-Pack
Overall Score: 9.1
Expert Reviews: 1
4. Master Lock Shackle Padlock
Overall Score: 9.1
Expert Reviews: 1
5. Brinks Long Shackle Padlock
Overall Score: 9.0
Expert Reviews: 0
6. Stanley Hardened Steel Padlock
Overall Score: 8.8
Expert Reviews: 4
7. Kwikset SmartKey Padlock
Overall Score: 8.8
Expert Reviews: 0
8. Crystal Vision Alarm Padlock
Overall Score: 8.5
Expert Reviews: 1

An Overview On Heavy Duty Padlocks

Padlocks are the first line of defense between your valuable items and a pair of curious or devious hands that you might not want touching your goods. Padlocks are made of many types of metals, but generally, a carbide or alloy steel lock is the most durable metal and should be something you want to make sure you get in order to maximize the security you’re receiving.

Padlocks come in a wide range of sizes, from tiny locks designed to secure your luggage while you travel to heavy-duty locks that are used to secure doors or fences that might need a beefier padlock.

“With regards to heavy-duty padlocks, think ‘bigger is better,’ says Vicki Liston, writer, producer, and narrator of “On The Fly…DIY,” an award-winning home improvement and DIY show of unique project tutorials for the casual DIY’er.  “The same goes for the number of pins.  The more pins in a lock, the harder it is to pick so a six-pin model will be more secure than its five-pin counterpart.”

One feature that some padlocks have is a freely rotating shackle that removes typical weak spots found in spring-loaded padlocks, which are susceptible to being drilled into as a means of breaking the lock. The models with the freely rotating shackle will still need to be made from high strength steel and sometimes they come in coatings like chrome that help them resist outdoor and marine environments.

If the ultimate security of your padlock is the highest priority to you, look for heavy-duty models that will get you into a territory that makes them much harder for a thief to break. New technology in battery-power has introduced a difficult challenge for padlocks because thieves can be armed with rotary cutting tools that operate with a small battery, allowing them to have a pocket-sized tool that can cut through a lot of metals. This means that the weakest spot in many padlocks is simply the thinnest section of the lock, which is the shackle part that actually goes through the hardware that it is locking to. This can be combatted by using a round padlock that has a very small exposed shackle part that is mostly covered by the body of the padlock and also the hardware it’s attached to. These round padlocks are one of the most secure padlocks due to this design feature, assuming they are made with high-strength metals. An added benefit to the round padlock is that it can eliminate the use of internal springs, meaning a drill won’t be effective at breaking the lock by itself.

If you’re looking for even more security, you would want to find a lock that can’t be bumped open.

“Bumping is not only an effective break-in method for door locks — it can work on padlocks as well,” says Liston. “Bumping requires a special key and a mallet which ‘bumps’ the inner pins to realign to the special key’s shape and thus, unlocks with ease.”

DYWM Fun Fact

Padlocks are an old technology that dates back to the Roman era as early as 500BC. The metallurgy has improved greatly since those times, but the use of a lock to keep thieves away from your valuable items is an impressively old tradition.

The Heavy Duty Padlock Buying Guide

  • Choose a padlock that is the right size for your needs. A longer shackle is necessary in some cases when you need to span a couple of inches. A shorter shackle is harder to break open, though, so if you can fit a lock with a shorter shackle you will enhance the security of the lock.
  • If your lock will be outdoors, focus on materials that withstand the elements.
  • If you are attaching the lock to a chain, get the chain as taut as possible so there is no unnecessary slack. Slack in the chain makes it easier to manipulate and lessens the security.
  • Padlocks can have combinations or physical keys. Combination locks are handy when there are multiple people who need to use the lock since keys can be easily misplaced.