Lathem Barrel Master Key – For Lathem 5000E, 7000E, 7500 & Acroprint 175
This barrel-style master key is a replacement key used to open the cover on many
newer Lathem and Acroprint time clocks. If your clock has a round tubular lock,
this key is often the correct style for accessing the inside of the machine for
service tasks such as ribbon replacement, adjustments, or routine maintenance.
Common Compatible Models
This key is commonly associated with Lathem 5000, Lathem 5000E,
Lathem 7000E, Lathem 7500, and Acroprint 175,
plus other newer models that share the same barrel-lock design. :contentReference[oaicite:2]{index=2}
Why Replacing a Missing Key Matters
Many workplaces discover they need the key at the worst time—when a ribbon is fading,
a cover needs to be opened, or settings need to be checked. Keeping the correct master
key available helps avoid downtime and keeps timekeeping consistent for payroll.
It also supports access control by limiting internal adjustments to authorized staff.
How to Verify the Correct Key Type
Look at the lock opening on the clock: a barrel key fits a round tubular lock.
If your time clock uses a larger, flat “church key” style opening, it requires a
different key. If you are in doubt, contact us with your clock’s model number and
we’ll help you confirm the correct replacement.
Related Supplies
If you want help matching this key to your specific Lathem or Acroprint clock, call us—
we’ll confirm compatibility before you order.