The Master Lock 5SSTHC Keyed Padlock Set features a 3/8 inch diameter shackle and a 1 inch clearance. The padlocks are keyed alike, meaning they can be unlocked with the same key. Made by the trusted brand Master Lock, this set is ideal for securing facilities and equipment in a business or industrial setting. With a focus on safety and access control, this set provides a reliable and convenient solution for protecting valuable assets.