OBSOLETE. Manufactured with solid aluminum body and hardened chrome-plated steel shackles, our padlocks are amazingly lightweight and rugged. Locks are chemical and corrosion resistant and feature 6-pin cylinders for better tamper resistance. Shackle diameter is 1/4". Lock body is 1 3/5"H x 1 1/2"W x 3/4"D. Padlocks are available keyed different. Lock labels sold separately.