Heavy duty lock that works with door 1-1/4" to 1-5/8" thick. Requires opening in dor 2-3/4 x 2-3/8". In-knob cylinder has a stainless steel dust cover. Outside locking with key only. Inside and outside plates measure 3-5/8" x 3-7/8". THe lock protrudes 1-27/32" on the inside and 2" on the outside. Lock is not designed for vehicles transporting passengers.
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