Finding the best circular lock suitable for your needs isnt easy. With hundreds of choices can distract you. Knowing whats bad and whats good can be something of a minefield. In this article, weve done the hard work for you.
Best circular lock
1. Master Lock Padlock, Stainless Steel Discus Lock, 2-3/4 in. Wide, 40DPF
Feature
PADLOCK APPLICATION: For indoor and outdoor use; Lock is best used for storage units, garages & sheds, trailers, moving trucks and moreDURABLE DESIGN: Lock includes stainless steel construction and hardened steel shackle for increased strength and security
STRONG SECURITY: 4-pin cylinder and dual locking lever mechanism provides pick and pry resistance, shrouded design minimizes shackle exposure and protects against bolt cutter attacks.
SPECIFICATIONS: 2-3/4 in. wide lock body; 3/8 in. diameter shackle with 5/8 in. length, 3/4 in. width
INCLUDES: One padlock, two keys
Description
The Master Lock No. 40DPF Discus Padlock features a 1-9/16in (70mm) wide stainless steel body for maximum strength, reliability and corrosion resistance. The fully shrouded design minimizes shackle exposure and protects against bolt cutter attacks. The 3/8in (10mm) diameter shackle is 5/8in (16mm) long and made of hardened steel, offering extra resistance to cutting and sawing. The 4-pin cylinder prevents picking and the dual locking levers provide resistance against prying and hammering. The Limited Lifetime Warranty provides peace of mind from a brand you can trust.2. Master Lock Padlock, Stainless Steel Discus Lock, 2-3/4 in. Wide, 40T (Pack of 2-Keyed Alike)
Feature
PADLOCK APPLICATION: For indoor and outdoor use; Lock is best used for storage units, garages & sheds, trailers, moving trucks and moreDURABLE DESIGN: Lock includes stainless steel construction and hardened steel shackle for increased strength and security
STRONG SECURITY: 4-pin cylinder and dual locking lever mechanism provides pick and pry resistance, shrouded design minimizes shackle exposure and protects against bolt cutter attacks.
SPECIFICATIONS: 2-3/4 in. wide lock body; 3/8 in. diameter shackle with 5/8 in. length, 3/4 in. width
INCLUDES: Two padlocks, two keys; both keys open both locks
Description
The Master Lock No. 40T Discus Padlock features a 1-9/16in (70mm) wide stainless steel body for maximum strength, reliability and corrosion resistance. The fully shrouded design minimizes shackle exposure and protects against bolt cutter attacks. The 3/8in (10mm) diameter shackle is 5/8in (16mm) long and made of hardened steel, offering extra resistance to cutting and sawing. The 4-pin cylinder prevents picking and the dual locking levers provide resistance against prying and hammering. The Limited Lifetime Warranty provides peace of mind from a brand you can trust.3. Brinks 673-70401 Discus Lock, 4 Pack (All Keyed Alike)
Feature
Full rubber jacket over stainless steel body discus lockBoron steel shackle
All locks keyed alike
4-Pin pick resistant cylinder
Lifetime Warranty
Description
This 70mm lock is constructed with a stainless steel body to resist corrosion, enhanced by a chrome plated steel shackle. The lock features 4 pin cylinder making it pick resistant, a Boron steel shackle, and a rubber jacket to reduce marking on surfaces. This product is ideal for all types of storage lockers or sheds, truck work boxes, and construction site storage. All locks are keyed alike. Lifetime warranty included. As a global leader in security-related products and services, the Brinks name is synonymous in top quality merchandise to keep you and your valuables safe.4. Master Lock 178D Set Your Own Combination Lock, Die-Cast, Standard, 1 Pack, Black
Feature
Indoor and outdoor padlock is best used as a school locker lock, gym lock, and gate lock, providing protection and security from theftSet your own four-digit combination lock for easy combination recall; combination change tool included
Combo lock is constructed with a solid body for strength and weatherability, hardened steel shackle for cut resistance
2 in. (51Mm) wide lock body; 5/16 in. (8 mm) diameter shackle with 1 in. (25 mm) length, 1 in. (25 mm) width
Note: shackle is preset to open on 0-0-0-0. Some instructions may incorrectly state shackle opens on l-o-c-k. See user manual in technical specifications section of this page for correct combination reset instructions.
Description
The Master Lock 178D Set your own combination padlock features a 2in (51mm) wide solid body for strength and reliability. The 5/16in (8mm) diameter shackle is 1in (25mm) long and made of hardened steel, offering extra resistance to cutting and sawing. The 4-digit dialing allows for thousands of possible numeric combinations. The limited lifetime warranty provides peace of mind from a brand you can trust.5. Keeper Brinks 173-80051 80mm Shielded Discus Lock with Resettable Combination
Feature
High security 80mm stainless steel lock body and shackleEasy to change 4 dial resettable combination lock
Round shielded design minimizes shackle exposure
Never worry about having a key
Perfect for storage units, sheds, truck work boxes and constructions site storage
Description
This 80mm stainless steel Discus lock body features an easy to use 4 dial combination, so you can select your own personalized combination. Easy to reset and you never need to worry about having a key. The lock is constructed with a stainless steel body and shackle to resist corrosion. This product is ideal for all types of storage lockers or sheds, truck work boxes, and construction site storage.6. FJM Security SPSA80-KA 3-1/8" Triple Chrome Plated D-Shaped Security Padlock, Keyed Alike
Feature
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
The lock's durable and weather resistant chrome exterior and its unique "D" shape make it the perfect solution for securing containers, gates and storage units
Padlock comes with 4 unique European style keys and is key retaining - the keys can only be removed from the padlock when it is in the locked position
FJM Security padlocks ship keyed alike - each key set fits all of the locks. A great solution if you don't want to carry too many keys (also available keyed different)
Description
FJM High Security Padlocks
With FJM Security 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.
Protection from Bolt Cutters or Saws
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!
Heavy Duty Padlocks
This high security padlock requires the keyway to turn 90 degrees prior to connecting with the disks making it both a heavy duty padlock and a very high security lock. With all the internal mechanics being made out of brass and stainless steel, these security padlocks are built to last. Having this heavy duty padlock gives you the peace of mind for complete security for your belongings.
High Security Features
Hardened steel & chrome plated shackle
Heel & Toe double locking shackle
Freely rotating shackle making it virtually impossible to cut
No spring loaded parts to wear out
Requires keyway to turn 90 degrees prior to connecting with disks
High security keys preventing others from copying keys
Great for containers, gates, storage units, etc.
7. Master Lock Padlock, Solid Steel Lock, 2-1/2 in. Wide, 930DLHPF
Feature
PADLOCK APPLICATION: For indoor and outdoor use; Lock is best used for storage units, garages & sheds, trailers, moving trucks and moreDURABLE DESIGN: Lock includes solid steel construction and a hardened boron alloy shackle for increased strength and security
MAXIMUM SECURITY: 5-pin cylinder and dual ball bearing locking mechanism provides superior pick and pry resistance; Removable cylinder to rekey your lock if needed
SPECIFICATIONS: 2-1/2 in. wide lock body; 7/16 in. diameter shackle with 2 in. length, 7/8 in. width; extended shackle length for application flexibility
INCLUDES: One padlock, two keys
Description
Master Lock 930DLHPF 2-1/2-inch (64mm) solid steel Lock with 2-inch shackle. Dual ball bearing locking for maximum protection from prying and hammering. Hardened boron alloy shackle for maximum cut resistance. Removable cylinder, ability to rekey your lock.8. ABUS 20/70 Diskus Stainless Steel Padlock Keyed Different
Feature
Handmade in Germany since 1949 using the highest quality raw materialsStainless Steel inside and outside
Diskus Deep Welding Technology - Maximum Strength
ABUS-Plus disk cylinder: Highest protection against manipulation, extremely high number of key variations, designed to resist drilling and pulling
Anti-cut plate for added security
Description
The disc lock is a special form of padlock with some distinct advantages. The disc shape effectively combats the most common ways of forcing it open. The design with only a small opening in the shackle makes it very difficult to tamper with. As the ABUS Diskus is made mainly of stainless steel, it is used especially where security and protection against corrosion are required. 360-degree all-round protection. The Diskus family is available in models with diameters between 50 and 80 mm. The original Diskus is only available from ABUS. As a special model, the locks can be retrofitted with a disc cylinder (ABUS-Plus locking system) or cylinder pulling protection.9. Master Lock 40TRI Shrouded Stainless Steel Disk Padlock with 2-3/4" Wide Body (Pack of 3)
Feature
Value Pack - Three SS padlocks all keyed alike. Comes with 2 keys only.We CAN NOT provide multiple sets keyed the same - each set comes pre packaged with a unique key number.
2-3/4" (70mm) wide stainless steel body resists corrosion.
4-pin cylinder helps prevent picking. Case-Hardened 3/8" steel shackle for extra cut resistance.
Keyed Alike with key retaining feature that ensures padlock is not left unlocked
Description
The Master Lock no. 40TRI discus padlock features a 1-9/16In (70Mm) wide stainless steel body for maximum strength, reliability and corrosion resistance. The fully shrouded design minimizes shackle exposure and protects against bolt cutter attacks. The 3/8In (10Mm) diameter shackle is 5/8In (16Mm) long and made of hardened steel, offering extra resistance to cutting and sawing. The 4-pin cylinder prevents picking and the dual locking levers provide resistance against prying and hammering. The limited lifetime warranty provides peace of mind from a brand you can trust.10. FJM Security SX-790 4-Dial Combination Disc Padlock With Shielded Hardened Steel Shackle and 10,000 Possible Combinations
Feature
Combination discus lock is the perfect keyless solution for those needing robust padlock protection - hidden shackle eliminates vulnerable points on the lockThe FJM Security combo lock has an exterior constructed out of rust resistant stainless steel - perfect for outdoor applications in need of reliable protection
This combination lock features a rounded discus shape with a shielded hardened steel shackle designed to resist attacks from slashing, sawing and bolt cutters
Factory default combo for the disc lock is 0-0-0-0 and can be easily reset to the combination of your choice with just a paperclip
FJM Security discus padlock is perfect as a shipping container lock, storage unit lock, gate padlocks, bike padlock, storage locker lock and more
Description
Protected Shackle from Bolt Cutters
Heavy duty combination disc padlock is protected from threats of bolts cutters and other intrusive tools because of its unique shape and design. The design allows this discus padlock to be protected while easily fitting on most applications.
Keyless Access
Combination disc padlocks provide the peace of mind of not having to carry around keys. Very easy to use and no keys or special pins needed to change the code. With over 10,000 possible combinations, keep intruders locked out of belongings knowing they are secure.
Applications
The discus security lock is great for storage facilities, public facilities, gates, bikes, and more! Just set the combination, write it down so you don't forget, lock it, and the combination disc lock will do the rest!
