The American Lock No. A1105KABLK Aluminum Padlock, Keyed Alike Set of 6 – all 6 locks open with the same key – features a 1-1/2in (38mm) wide black anodized aluminum body with a 1in (25mm) tall, 1/4in (6mm) diameter chrome plated, boron alloy shackle for superior cut resistance. The anodized finish makes padlock suitable for lockout in food processing facilities and corrosion resistant finish ideal for tough environments.