UP (Universal Pin) padlocks for in store keying convenience. UP Series locks are pinned on site to match customer's original key and do NOT come with keys. Use #376 universal pin keying tool for keying. Must be ordered separately Orgill SKU#6596365. Universal pin padlocks for keying convenience. Operate with same key as Master Lock padlocks (#1 to 6). Laminated steel bodies for superior strength. Hardened steel (#1 and #3) hardened boron alloy (#5) shackles. 4-pin tumbler cylinders helps prevent picking. 1UP and 1UPLJ have 1-3/4 in wide case, 5/16 in Dia shackle and 3/4 in horizontal shackle clearance. 3UP and 3UPLF have 1-9/16 in wide case, 9/32 in Dia shackle and 15/16 in horizontal shackle clearance. 5UP and 5UPLF have 2 in wide case, 3/8 in Dia shackle and 15/16 in wide horizontal shackle clearance.