Master Lock K1690 Control Key for No. 1600 Series Padlocks

Master Lock No. K1690 Control Key: Master Lock 1690K Control Key for No. 1600 Series Built-In Combination Locks, including Nos. 1630, 1652, 1653, 1654, 1655, 1670, 1671, 1676, 1677 & 1690 Built-In Locker Locks. Master Lock K1690 Control Key Only (for No. 1600 Series Locks) Master Lock 1630K Control Key for No. 1600 Series Built-In Combination Locks, including Nos. 1630, 1652, 1653, 1654, 1655, 1670, 1671, 1676, 1677 & 1690 Built-In Locker Locks.