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May 05, 2020 - 04:50 AM
I reached out to RV designer and they said The T507 locks thet are currently receiving from Trimark have a steel plunger. There is an alpha letter on the back-side of the exterior lock plate – Letters A – L were manufactured with Zinc. Effective with the Letter M, the plungers are Steel. A magnet should strongly attract to the steel plunger. The deadbolt is Zinc.
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