Master Lock 410 keyed-alike padlock thermoplastic black 12-pack

Twelve-pack keyed-alike convenience

This Master Lock 410 set contains twelve padlocks that all open with the same key, simplifying lockout procedures for maintenance teams. The thermoplastic bodies resist chemicals and reduce weight compared with metal alternatives. Each lock includes two keys and labels for quick identification on site. Ideal for facilities that need consistent keying across multiple isolation points.

Check shackle dimensions before ordering

Verify that the 13/16 in horizontal and 1 1/2 in vertical shackle clearances fit your hasps, valve handles or breaker toggles. The 1/4 in shackle diameter must match the hole size on your lockout devices. Confirm that a non-removable key suits your safety protocol, because the key cannot be withdrawn while the shackle is open. Ensure the keyed-alike arrangement matches existing 410 locks if you are expanding a current system.

Thermoplastic body with steel shackle

The black thermoplastic body measures 1 3/4 in high by 1 1/2 in wide by 3/4 in thick, offering chemical resistance in harsh environments. An open steel shackle provides 1/4 in diameter strength while keeping the lock lightweight. Labels supplied with each unit allow on-the-spot tagging of responsible personnel. The key-retaining feature prevents accidental lock-outs by keeping the key engaged until the shackle is secured.