Easy to install on thin doors. Smooth, positive latching action insured by powerful conical spring. Durable nylon roller for quiet operation. Adjustable tension. Full lip style strike for simplified mortising. 3/4 in x 1-3/4 in bore, 2-1/4 in x 1-5/8 in strike, 2-1/4 in x 7/8 in face plate, 1-3/16 in CTC. Packed with sheet metal screws. Polybagged.