American Padlock Model A1165. Safety Lockout Padlock. Red, (KZ) 0-bit, aluminum body, 6 pin. 1 1/2" wide, 3/4" thick and 1" Shackle. American Lock’s lightweight, 1-1/2" durable aluminum padlocks are easy to carry from one lockout job to the next - For safety applications, we recommend the A1165, A1166, and A1167 with the exclusive-to-safety W401 cylinder. For master keyed applications, choose the W417 cylinder.