Perko 1091DP4BLK Surface-Mount Locking Latch for 1/8" to 3/4" Thick Smooth/Carpeted Surface, Fits 2-1/2" Hole - 1/2" to 3" Cam Bar, Black
Flush-Mount Round Block Latch - 1/2 inch - 3 inch cam- Features black plastic construction. Stainless steel stem and lock with two keys. Easily installs in a 2-1/2 inch diameter hole - for mounting surfaces 1/8 inch to 3/4 inch thick.