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Master Lock Built-In Combination Locker Locks

Built-in combination locks mount inside a compatible locker door. Match the latch mechanism, hinge side, mounting pattern and door thickness before selecting a Master Lock model.

Choose by the mechanism behind the door

The dial face does not establish fit. Use the rear mechanism, hinge side and locking action as the first filters, then verify the exact locker preparation.

Locker application	Model family	Action
Lift handle	1630 RH / 1631 LH	Automatic
Standard single-point horizontal latch	1652 RH / 1653 LH	Automatic springbolt
Horizontal latch box locker	1654 RH / 1655 LH	Automatic springbolt
Lift, turn, horizontal latch or box	1670 RH / 1671 LH	Manual deadbolt
Wrap-Around-Latch™	1690 RH	Automatic deadbolt

Determine handing while facing the closed locker. An “MD” version changes the dial option; it does not change latch compatibility. Send front and rear photos, hinge side, latch type, door thickness, model markings and quantity for review. For accessibility features, use the accessible locker lock options.

Master Lock lists the 1631 as discontinued. For an existing left-hand installation, request confirmation of current availability or a suitable supported option before ordering.

Manufacturer references: 1630, 1631, 1652, 1654, 1670, and 1690.

Which built-in lock fits the locker?

The Master Lock 1630 is an automatic-locking option for right-hinged standard lift-handle lockers. The Master Lock 1670 uses a manual deadbolt for its specified right-hinged locker applications. They are not interchangeable solely because both use a combination dial. Read the 1630 vs. 1670 comparison and check the individual model’s fit requirements.

What should schools check before replacing built-in locks?

Record the existing model and suffix, photograph the latch and back of an open door, and note hinge side and door thickness. See our replacement identification guide. Authorized staff should confirm any control-key requirements privately.

request a quote with the locker details and quantities for each model.

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