The next step is to determine the lock type. On commercial aluminum storefront doors there are 3 types of locks: deadlock, deadlatch, or hookbolt. All three locks are different but are easy to determine by looking at the bolt type.
Deadlock Lock Type: A deadlock lock features a heavy duty laminated bolt that provides maximum security for the commercial aluminum door. A 360 degree turn of the key or thumbturn projects or retracts the counterbalanced bolt. The key can be removed only when the bolt is in a positively locked or unlocked position. Deadlocks are the most popular lock type and are used in commercial storefront aluminum swinging type doors.
Hookbolt Lock Type: A hookbolt lock functions exactly like a deadbolt, but features a hook shaped laminated bolt instead of the flat laminated bolt. The shape of the bolt is primarily designed for commercial aluminum sliding doors since the hook shape resists the parting motion of the sliding door and jamb.
Deadlatch Lock Type: A deadlatch lock features a spring loaded latchbolt. It operates by turn key or operating a exit handle or push paddle to retract the spring loaded latchbolt. The hold the latchbolt retracted, push it in and secure by reverse turn of the key. The deadlatch is found in many commercial aluminum storefront swinging type doors. The deadlatch does not offer as much security as the deadlock. The deadlatch still is very popular since it can offer flexibility of traffic control during and after business hours. With a simple reverse turn of the key while the bolt is held retracted, retains the bolt to allow two way traffic for healthcare, financial institution, and other applications requiring free entrance at certain time and exit only at other times.
Choose Lock Type