10 Best High Security Padlock of August 2025

• Hardened solid steel padlock body (63.5 millimeter) with 2 1/2 inch Molybdenum shackle for increased security
• Double deadbolt locking provides greater strength
• High security 6 pin brass cylinder
• 2 pack, keyed alike, includes 4 keys
• Perfect for use in moderate to high crime areas

SCHLAGE

• Astm Security Grade 4
• Molybdenum Cut Resistant Steel Shackle Protects Against Sawing And Cutting Attacks
• Hardened Steel Body Protects Lock From Attacks
• ASTM security grade 4
• Full shrouded, hardened steel body
• Dual stainless steel ball-bearings resist pry attacks
• Commercial 6 pin cylinder with anti pick pins
• Patented Keyway Cover Protects Against Drilling

Stanley

• ASTM security grade 5
• Full shrouded, hardened steel body
• Dual stainless steel ball-bearings resist pry attacks
• Commercial 6 pin cylinder with anti pick pins
• Patented Keyway Cover Protects Against Drilling

Stanley

• This listing is for four (4) High Security Keyed Alike Padlocks w/ 8 keys. ProSeries Padlocks are designed for Commercial/Industrial applications. Limited Life Time Warranty. ATTENTION: If you order two 4-packs they will NOT necessarily be keyed the same. To ensure you get two 4-packs keyed alike, you must order the 8-pack.
• Ideal for harsh outdoor conditions - exclusive Pro Series Weather Tough cover protects lock from water, ice, dirt and grime. Solid iron shackle shroud resists harsh physical attacks. The removable cylinder can be replaced or re-pinned. 5 spool pin tumbler cylinder for added pick resistance. Dual ball bearing locking mechanism resists pulling and prying.
• These locks feature the BumpStop Advanced Cylinder Technology. (for explanation see more product details below).
• DIMENSIONS: 2-1/8 wide heavy steel body. A 5/16 diameter hardened boron alloy shackle with 1-3/16 inside height clearance.

Master Lock

• This listing is for four (4) High Security Keyed Alike Padlocks w/ 8 keys. ProSeries Padlocks are designed for Commercial/Industrial applications. Limited Life Time Warranty. ATTENTION: If you order two 4-packs they will NOT necessarily be keyed the same. To ensure you get two 4-packs keyed alike, you must order the 8-pack.
• Ideal for harsh outdoor conditions - exclusive Pro Series Weather Tough cover protects lock from water, ice, dirt and grime. Solid iron shackle shroud resists harsh physical attacks. The removable cylinder can be replaced or re-pinned. 5 spool pin tumbler cylinder for added pick resistance. Dual ball bearing locking mechanism resists pulling and prying.
• These locks feature the BumpStop Advanced Cylinder Technology. (for explanation see more product details below).
• DIMENSIONS: 2-1/8 (54mm) wide heavy steel body, each weighing 1.55 lbs. A 5/16 (8mm) diameter hardened boron alloy shackle with 3/4 (19mm) inside height clearance.
• Solid iron shackle shroud resists harsh physical attacks. The removable cylinder can be replaced or re-pinned. 5 spool pin tumbler cylinder for added pick resistance. Dual ball bearing locking mechanism resists pulling and prying.

Master Lock

• Indoor and outdoor padlock with key; lock and hasp is best used for moving trucks, vans, and buildings with sliding doors
• Key lock is made of zinc plated solid steel for maximum strength, reliability and corrosion resistance, hidden shackle design eliminates shackle exposure and protects against bolt cutter attacks
• Five-pin cylinder provides maximum pick resistance while key retaining safeguard ensures padlock is not left unlocked
• Hasp Length is 9-1/16 in. (23 cm), Lock body diameter is 2-7/8 in. (73 mm), 3/8 in. carriage bolts recommended for installation (bolts not included)
• Includes one padlock and hasp, two keys

Master Lock

• High-Security Steel Padlock: Made from hardened alloy steel with a tensile resistance of 6 tons, this padlock features the ABUS Plus disc cylinder for the highest protection against picking; Keyed alike; includes 2 keys
• Hardened Steel Protection: Shackle and body are made from hardened alloy steel with black Granit coating for extreme corrosion resistance; Disk cylinder is extremely drill resistant; Includes 2 keys, one with an Led light and anti key duplication card
• Padlocks for Any Application: Discover our full line of padlocks, from OSHA approved safety locks to heavy duty Granit padlocks and disc locks to brass, steel and aluminum models, to resettable combination, rekeyable and keyed alike locks
• The World's Leading Security Manufacturer: We offer a comprehensive line of home, commercial security and worker safety products including padlocks and hasps, chains and cables, key storage and safety devices
• Synonymous with Security: When it comes to protecting lives and valuables, ABUS provides security solutions that help you feel safe and secure. We've been innovating security technology since 1924

ABUS

• UNMATCHED SECURITY – FJM Security crafts locks that last and security you can trust. This long-lasting padlock is heel toe locking with a freely rotating hardened steel shackle. Our FJM design leaves no weak spots on the lock and prevents attacks by cutting or sawing.
• DURABLE CONSTRUCTION – The lock's durable chrome exterior and its unique “D” shape make it the perfect solution for securing containers, gates and storage units. Convenient and smooth, it can be applied vertically or horizontally on storage or shipping containers.
• WORKS IN HARSH WEATHER  – Constructed out of durable hardened steel, this padlock is triple chrome plated and uniquely suited to outdoor and marine environments. The supremely durable construction of this padlock stands up to the harshest weather conditions.
• KEY RETAINING – The SPSA60 FJM Padlocks come with 4 unique European style keys and are key retaining. The keys can only be removed from the padlock when it is in the locked position.
• KEYED ALIKE – This lock ships keyed alike, so each key set fits all of the locks. It is a great solution if you don't want to carry around a bunch of keys. (Also available keyed different.)
• Hardened Steel and Chrome plated 80mm lock - great for marine use
• Heel/Toe shackle - freely rotating to resist cutting
• Won't wear out - all Internal mechanics brass and stainless steel; Jimmy proof
• Pick proof
• Key retaining and comes with 4 keys that are hard to duplicate

FJM Security Products

• Four (4) High Security Locks Keyed Alike w/ 8 Keys. ProSeries Padlocks are designed for Commercial/Industrial applications. Limited Life Time Warranty. ATTENTION: If you order two 4-packs they will NOT necessarily be keyed the same. To ensure you get two 4-packs keyed alike, you must order the 8-pack.
• Ideal for harsh outdoor conditions - exclusive Pro Series Weather Tough cover protects lock from water, ice, dirt and grime. Solid iron shackle shroud resists harsh physical attacks. The removable cylinder can be replaced or re-pinned. 5 spool pin tumbler cylinder for added pick resistance. Dual ball bearing locking mechanism resists pulling and prying.
• These locks feature the BumpStop Advanced Cylinder Technology. (for explanation see product details below).
• Dimensions: 2-1/2 (64mm) wide round solid steel body, each weighing 1.48 lbs. A 7/16 (11mm) diameter hardened boron alloy shackle with 1-1/8 (29 mm) inside height clearance.
• Chrome rustproofing provides longer life. These high security, rekeyable 5-pin cylinders with spool pins are virtually impossible to pick. And a dual ball bearing locking mechanism resists pulling and prying.

Master Lock

• PADLOCK APPLICATION: For indoor and outdoor use; Lock is best used for storage units, garages & sheds, trailers, moving trucks and more
• DURABLE 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 1-1/8 in. length, 7/8 in. width
• INCLUDES: One padlock, two keys

Master Lock