Buyers Side Security Latch Striker plate is 2 7/8in.L x 2 1/2in.W x 1 1/4in.H Flat mounting plate is 3in.L x 1 3/4in.W x 3/16in.H U-shaped mounting plate is 3in.L x 1 3/4in.W x 11/16in.H Latch bar is 4 5/8in.L x 4 5/8in.W x 1/2in. dia.