Collection: Security Chains

Why 8mm hardened links

Hardened chrome-alloy carbon steel at 8mm defeats bolt cutters and saws far better than any cable, and the weatherproof nylon sleeve shrugs off saltwater and sun instead of chewing paintwork. It is the difference between slowing a thief down and stopping one.

Cut proof chains vs cut resistant chain

The two phrases get used interchangeably and they should not be. A cut resistant chain slows an attack down; genuinely cut proof chains defeat the tool outright. What decides it is link diameter and steel hardness, not the marketing on the packet. At 8mm hardened chrome-alloy, our links are past the bite capacity of the compact bolt cutters that get carried on foot, which is the tool that takes most gear. We break the whole comparison down in Can Cable Locks Be Cut? What Actually Stops a Thief and in 8mm vs 12mm security chains.

Where a chain beats a cable

Use chain for anything left unattended overnight, anything stored in public, and anything valuable enough to be worth a thief bringing tools for: trailers on a driveway, bikes at a rack, gates, and kayaks on a dock. Use a weatherproof cable lock where you need reach, flexibility and light weight instead, and see our towing cables if you need a trailer safety cable rather than a theft chain.

Choose your chain

Get the ready-to-use anti-theft chain with cut-proof U-lock, or the standalone chain in 3, 6 or 10ft if you already own a lock.