The Squire SS100S Stronghold padlock is a huge, ultra-high-security, open shackle hardened steel padlock that is widely recognized as the world's strongest production padlock. Squire's Stronghold SS100S is the first padlock to ever achieve a level SR4 security rating from the Loss Prevention Certification Board (LPCB)
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Squire SS100S Padlock, Blue, One Size
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Page 3, Home & Security
High Security & Heavy-Duty Padlocks
SQUIRE SS100 Stronghold Open Shackle Padlock Body Only
Henry Squire SS100 Stronghold CEN6 Closed Shackle Padlock +
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Squire Padlocks UK