Laminated steel padlocks from 30 mm to 65 mm. Most are waterproof with a sealed keyway; the 65 mm model has a 5-pin brass cylinder and a coated shackle, there is a high-vis yellow 50 mm model, and one 50 mm lock uses double brass bolt locking. Sizes run from a 30 mm lock with a Ø4.5 mm shackle for meter boxes up to gate and yard locks.See all padlocks, cable and chain locks.