Welcome to Nothing But Padlocks
High security padlocks are insurance rated using an industry standard known as CEN that ranges from grades 1-6. Most will require a grade 3 or more and often a closed shackle design. For more information the different grades please see our Insurance Advice Section . If you require keyed alike high security padlocks please scroll down.
High Security Granit Plus Padlock
The world leading Granit Padlock uses an ABUS Plus disk cylinder with 250,000 key variations and keys that cannot be copied. The shackle and body are made from hardened alloy steel and are insurance approved up to CEN Grade 4. This latest model is also a fully weatherproof marine grade padlock with a cataphoretic coat to provide 40 years of corrosion resistance!
Long Shackle High Security Granit Padlock
The long shackle version of our world leading Granit Padlock uses an ABUS Plus disk cylinder with 250,000 key variations and keys that cannot be copied. The shackle and body are made from hardened alloy steel and are insurance approved up to CEN Grade 4. This latest model is also a fully weatherproof marine grade padlock with a cataphoretic coat to provide 40 years of corrosion resistance!
High Security Closed Shackle Granit Plus Padlocks
The world leading Granit Padlock uses an ABUS Plus disk cylinder with 250,000 key variations and keys that cannot be copied. The shackle and body are made from hardened alloy steel and these closed shackle versions are insurance approved up to CEN Grade 5. This latest model is also a fully weatherproof marine grade padlock with a cataphoretic coat to provide 40 years of corrosion resistance!
Hardened Steel Shutter Padlock
A straight shackle or shutter padlock encased in hardened steel for added security and give this high security padlock an CEN insurance approved grade of 3. Includes rust free internal components and an anti-pick mechanism.
High Security Pro-Series Padlocks
The Pro-Series from Master are their highest security range, featuring a Xenoy thermoplastic cover, a boron hardened steel alloy shackle and 6 pin anti-pick cylinder with a double bolted locking mechanism.
Closed Shackle Pro-Series Padlocks
This is the closed shackle version of the Pro-Series from Master featuring a Xenoy thermoplastic cover, a boron hardened steel alloy shackle and 6 pin anti-pick cylinder with a double bolted locking mechanism.
High Security Stronghold Padlock
The high security Stronghold padlocks are Squire's flagship CEN rated range. This open shackle version affords a CEN 5 grade using a hardened boron alloy shackle and an electophoretic coat for outstanding resistance to the weather. For a CEN 6 padlock please see the closed shackle model below.
Closed Shackle High Security Stronghold Padlock
The closed shackle high security Stronghold padlock has the highest security rating on the market. As a CEN grade 6 padlock you cannot buy a lock that is more resistant to bolt cropping and cutting. A hardened boron alloy shackle and an electophoretic coat also give this lock outstanding resistance to the weather.
Sea & Snow High Security Padlock
This is a marine grade, fully weatherproof high security padlock that benefits from the ABUS Plus disk cylinder with the highest protection against manipulation with 250,000 key variations. The shackle and body are made from hardened alloy steel and are insurance approved up to CEN Grade 4.
Hardened Steel Padlock
An insurance approved high security padlock up to CEN Grade 4. Both the body and shackle are constructed from hardened alloy steel making this padlock highly secure. It also benefits from a removable cylinder allowing it to be re-keyed to match existing padlocks or door locks.
Closed Shackle Hardened Steel Padlock
The closed shackle variation of our hardened steel padlock also insurance approved to CEN Grade 4. Both the body and shackle are constructed from hardened alloy steel making this padlock a highly secure option!
Ultra High Security Diskus Plus Padlocks
This padlock is built to the same specification as our high security Diskus Padlocks but including the addition of the ABUS Plus mechanism with 250,000 key variations with keys that cannot be copied. It carries a CEN Grade 3 certification.
Combination Shutter Padlock (Straight Shackle)
A straight shackle combination padlock made from solid brass and covered with a protective plastic casing for added impact resistance and weatherproofing. Although it is often known as a shutter lock it can be used in any situation and affords the higher security of a "closed-shackle" design.
High Security Combination Padlock
A very popular heavy duty combination padlock with resettable 4-digit code, hardened steal cover and precision mechanism. 10,000 possible combinations which can only be reset once open and using a special key provided.
Shipping Container Lock
A brand dew development in the padlock market is the Granit Conlock. A specially designed locking system for shipping containers using a hardened steel protective housing and a high security Granit Padlock with patented Plus locking system.
High Security Padlock & Chain Sets
Highly secure closed shackle lock and chain sets with large savings when buying together. A hardened steel straight shackle padlock is designed especially to fit using each end of the chain for maximum protection against saw and bolt cutters. Ideal for gates and motorcycles.
Granit Plus Hasp & Staple
The Granit Plus hasp and staple is especially developed to work with other high security padlocks to ensure the CEN Insurance rating is upheld. The hasp and staple itself is a CEN 5 product and would ideally be used with the ABUS Granit Plus Padlock.

When you buy two or more padlocks from the keyed alike range they will all be operated by the same key. The padlocks you receive will be identical but this DOES NOT mean that everyone that buys this padlock will be able to open your set or suite.
High Security Granit Padlocks (Keyed Alike)
The world leading Granit Padlock uses an ABUS Plus disk cylinder with 250,000 key variations and keys that cannot be copied. The shackle and body are made from hardened alloy steel and are insurance approved up to CEN Grade 4.
This latest model is also a fully weatherproof marine grade padlock with a cataphoretic coat to provide 40 years of corrosion resistance!
Long Shackle High Security Granit Padlock (Keyed Alike)
The long shackle version of our world leading Granit Padlock uses an ABUS Plus disk cylinder with 250,000 key variations and keys that cannot be copied. The shackle and body are made from hardened alloy steel and are insurance approved up to CEN Grade 4. This latest model is also a fully weatherproof marine grade padlock with a cataphoretic coat to provide 40 years of corrosion resistance!
High Security Closed Shackle Granit Padlocks (Keyed Alike)
The world leading Granit Padlock uses an ABUS Plus disk cylinder with 250,000 key variations and keys that cannot be copied. The shackle and body are made from hardened alloy steel and these closed shackle versions are insurance approved up to CEN Grade 5.
This latest model is also a fully weatherproof marine grade padlock with a cataphoretic coat to provide 40 years of corrosion resistance!
Closed Shackle Pro-Series Padlocks (Keyed Alike)
This is the keyed alike closed shackle version of the Pro-Series from Master featuring a Xenoy thermoplastic cover, a boron hardened steel alloy shackle and 6 pin anti-pick cylinder with a double bolted locking mechanism.
Pro-Series Padlock (Keyed Alike)
The Pro-Series from Master are their highest security range, featuring a Xenoy thermoplastic cover, a boron hardened steel alloy shackle and 6 pin anti-pick cylinder with a double bolted locking mechanism.
High Security Stronghold Padlock
(Keyed Alike)
The keyed alike version of our high security Stronghold padlocks are Squire's flagship CEN rated range. This open shackle version affords a CEN 5 grade using a hardened boron alloy shackles and an electophoretic coat for outstanding resistance to the weather. For a CEN 6 padlock please see the closed shackle model below.
Closed Shackle Stronghold Padlock (Keyed Alike)
This is the keyed alike closed shackle high security Squire Stronghold padlock has the highest security rating on the market. As a CEN grade 6 padlock you cannot buy a lock that is more resistant to bolt cropping and cutting. A hardened boron alloy shackles and an electophoretic coat also give this lock outstanding resistance to the weather.
Hardened Steel Shutter Padlock (Keyed Alike)
An insurance approved keyed alike straight shackle or shutter padlock encased in hardened steel for added security. Includes rust free internal components and an anti-pick mechanism.
Hardened Steel Padlock
(Keyed Alike)
A keyed alike insurance approved high security padlock up to CEN Grade 4. Both the body and shackle are constructed from hardened alloy steel making this padlock highly secure and resistant to saw, drill and bolt-cropping attacks.
Closed Shackle Hardened Steel Padlock (Keyed Alike)
The closed shackle variation of our hardened steel padlock also insurance approved to CEN Grade 4. Both the body and shackle are constructed from hardened alloy steel making this padlock a highly secure option!
Diskus Plus Padlocks (Keyed Alike)
The keyed alike variation of our highest security Diskus padlock using a weatherproof stainless steel case and components, anti-crush plate and the ABUS Plus mechanism with 250,000 key variations with keys that cannot be copied.