Heavy Duty Pocket Lock; Adjustable; 3-1/4 x 2 1/4 Passage; Unlacquered Bright Brass Finish Deltana inventories the largest selection of architectural and door hardware in over nine fine finishes made from solid brass, zinc, aluminum, steel and stainless steel.. Heavy Duty Pocket Lock; Adjustable; 3-1/4 x 2 1/4 Passage; Unlacquered Bright Brass Finish.