B660 Grade 1 Commercial Deadbolt. Key cylinder outside, thumb turn inside. Latch: 1-1/8" x 2-1/4", Square corner faceplate, 1" housing, 1" throw. Dia: 2-1/2". Cross Bore: 1-1/2" or 2-1/8" Proj: 1".

SPECIAL ORDER WHEN OUT. 09-16 NW