Squire Stronghold Padlocks Buyer`s Guide: Which High Security Padlock Is Right for You?

Here at Insight Security we understand how difficult it can be to identify the best padlock for a specific application. That`s why we`ve drafted this helpful buyers guide detailing the excellent Squire Stronghold range.

When it comes to protecting valuable assets, choosing the right padlock isn`t just about size or price, it`s about matching the level of required security to the risk. Whether you`re securing a warehouse, commercial premises, shipping containers, gates or expensive equipment, Squire Stronghold padlocks are some of the toughest padlocks available today.

Manufactured in Britain by Squire, the Stronghold range has built an outstanding reputation for exceptional strength, attack resistance and reliability. With models ranging from compact high-security padlocks to the world-renowned SS100CS, there`s a Stronghold padlock for almost every application.

In this buyer`s guide, we`ll explain the differences between the main Squire Stronghold models and help you choose the best option for your security requirements.

Why Choose a Squire Stronghold Padlock?

The Stronghold range has been developed for applications where ordinary padlocks simply can’t provide the required level of security. These are premium security products designed to resist common methods of attack including:

• Bolt croppers
• Drilling
• Hammer attacks
• Sawing
• Picking
• Twisting attacks

Many models have achieved independent CEN security ratings up to Grade 6, the highest available for mechanical padlocks, making them suitable for high-risk commercial and industrial environments. The range also includes specialist options for marine environments, shipping containers and restricted key systems. Insight Security supplies Stronghold padlocks with high-quality 6-pin cylinders, providing an additional level of security compared to lower specification padlocks. And it`s important to note that all Squire Stronghold padlocks come with a 10 year manufacturers guarantee!

Understanding the Squire Stronghold Range

Although the padlocks share the same DNA, each model has been designed for different applications. 

Squire SS50 Series

The SS50 is the smallest member of the Stronghold family but still delivers an impressive level of protection.

Best suited for:

• Gates
• Storage units
• Workshops
• Sheds
• Tool boxes
• Commercial lockers

Despite its compact size, the solid steel body offers excellent resistance against physical attack while remaining practical for everyday use where larger padlocks won`t fit.

Ideal for: Medium to high security applications.

Squire SS65 Series

The SS65 is one of the most popular choices in the range because it strikes an excellent balance between security and usability.

Available in:

• Open shackle
• Closed shackle
• Marine versions

The larger body and thicker, hardened shackle significantly improve resistance to bolt cutters while still fitting most standard hasps and gate fittings.

This model is commonly chosen for:

• Commercial gates
• Farm buildings
• Storage compounds
• Industrial units
• High-value sheds

Ideal for: Commercial and agricultural security.

Squire SS80 Series

If you`re protecting high-value assets, the SS80 moves into genuine maximum-security territory.

Key features include:

• CEN Grade 6 certification
• Heavy solid steel body
• Massive hardened steel shackle
• Excellent resistance against cutting and drilling

The SS80 is frequently specified for:

• Warehouses
• Utility sites
• Construction compounds
• Critical infrastructure
• High-risk commercial premises

Available as both open and closed shackle models, it offers flexibility depending on the installation.

Ideal for: Very high-risk environments.

Squire SS100CS – The Flagship Stronghold Padlock

At the very top of the range sits the Squire SS100CS.

Often described as one of the world`s strongest production padlocks, the SS100CS is engineered for environments where security cannot be compromised.

Features include:

• Massive 100mm solid steel body
• Twin locking mechanism
• 20mm hardened boron alloy shackle
• Maximum CEN Grade 6 rating
• Extremely high resistance to angle grinder attacks
• Available with protected restricted key systems

The SS100CS is commonly specified for:

• Critical national infrastructure
• Data centres
• Defence facilities
• Utilities
• High-value compounds
• Government applications

For customers seeking the ultimate mechanical padlock, this represents the pinnacle of the Stronghold range. 

Ideal for: Ultra-high security applications.

Open vs Closed Shackle: Which Is Better?

One of the biggest decisions is whether to choose an open shackle or closed shackle model. We recently published a helpful blog post on this topic.

Open Shackle

Advantages:

• Greater versatility
• Fits a wider range of hasps
• Easier installation.

Best for:

• Gates
• General commercial use
• Situations where clearance is required.

Closed Shackle

Advantages:

• Much less exposed shackle
• Significantly harder to attack using bolt cutters
• Better protection against leverage attacks.

Best for:

• High-risk locations
• Public-facing sites
• Areas vulnerable to attempted theft.

If your hasp or locking point allows it, a closed shackle model generally offers the higher level of physical protection.

Do You Need a Marine Padlock?

For coastal locations or harsh environments, the Stronghold Marine models are specifically engineered to withstand corrosion.

They`re ideal for:

• Marinas
• Boats
• Coastal businesses
• Beach huts
• Harbours
• Chemical environments
• Outdoor industrial sites.

The specialist finish and corrosion-resistant components help maintain reliable operation even after prolonged exposure to salt water and severe weather.

Keyed Alike or Master Keyed?

Businesses often need to use multiple padlocks without the inconvenience of carrying dozens of keys.

Many Stronghold padlocks can be supplied:

• Keyed Alike: one key operates multiple padlocks.
• Keyed to Differ: every padlock has its own unique key.
• Master Keyed: individual keys operate their own locks while a master key opens them all.

These options are particularly useful for facilities management, schools, warehouses and multi-site businesses.

Which Squire Stronghold Padlock Should You Buy?

Why Buy Your Squire Stronghold Padlock from Insight Security?

Choosing the right supplier is just as important as choosing the right padlock.

Insight Security offers the complete Squire Stronghold range, including specialist models that may not always be widely stocked. Our expertise means customers receive advice on selecting the most appropriate security solution for their application, along with flexible keying options including keyed alike and master keyed systems.

Importantly, Insight Security is an approved supplier of Squire Stronghold padlocks with extensive experience in helping customers get the very best performance from their premium padlocks and security solutions.

Final Padlock Considerations

Squire Stronghold padlocks have earned their reputation by delivering exceptional protection in some of the most demanding environments. From securing a workshop or agricultural building to protecting critical infrastructure, there`s a model designed for the task.

By understanding the differences between the SS50, SS65, SS80 and flagship SS100CS, you can choose a padlock that provides the right balance of security, practicality and long-term reliability.

If you`re investing in a high-security padlock, selecting the correct model and buying from an approved specialist supplier such as Insight Security helps ensure your security solution performs exactly as intended for years to come.

If you have any questions about your padlock requirements, or other security needs, remember we are here to help. Give us a call on 01273 092817 and we’ll provide you with free, expert advice.