Marks USA - Series 21AC - Ornamental Iron Mortise Lockset - Double Cylinder - Backset: 2-1/2" - Entrance - Bright Brass - Optional Handing Choose Handling:Left Field selectable 12/24 VDC operation

Field selectable 12/24 VDC operation

it causes all of the meeting points of each pin stack to come into alignment

Arrow S1250

Kaba Peaks

Marks USA - Series 21AC - Ornamental Iron Mortise Lockset - Double Cylinder - Backset: 2-1/2" - Entrance - Bright Brass - Optional Handing Choose Handling:Left Field selectable 12/24 VDC operationMarks USA has been a primary manufacturer of Ornamental Iron Storm Door locks for many years. During that time, many innovative improvements were developed to increase the reliability and ease of installation. Innovations includes the "Uni Lock" model with single screw assembly, elimination of threaded swivel spindles in favor of the more secure thru bolted design, helper springs in lever rose sets, and steel hubs for greater endurance.