1.Method to measure the size of the lock body:
Measure the distance from the empty center point of the handle to the center point of the keyhole, and then measure the distance from the center point of the handle to the edge of the door, that is, the distance from the depth of the hole on the door to the center point of the handle. These two distances are the specifications of the lock body. For example, the first distance is 72mm and the second distance is 55mm, then the specification of the lock body is 55*72 lock body!
2.Introduction to the standard size and specifications of the lock body. The lock body is generally divided according to the size.
There are currently two main sizes, one is the 6068 lock body, and the other is the Big Overlord lock body. The thickness of ordinary anti-theft doors is between 40mm and 60mm, which is also the thickness of common fingerprint locks. The lock body usually has a cylindrical lock body and a square lock body. Whether it is a cylindrical lock body or a square lock body, the size of the lock body is mostly the same, the difference lies in the size of the lock tongue in the middle. Common sizes are: 50*45/50: 58*45/50; 72*45/50/55/60; 85*30/35/45/50/55/60: 92*20/25/30/35/40, etc.
3.How to measure the size of the lock body:
Measure the distance from the empty center point of the handle to the center point of the keyhole, and then measure the distance from the center point of the handle to the edge of the door, that is, the distance from the depth of the hole on the door to the center point of the handle. These two distances are the specifications of the lock body. For example, if the first distance is 68mm and the second distance is 60mm, then the specification of this lock body is 60*68! Note: When matching the lock body, remember to measure the depth and length of the hole on the door so that the lock body can match completely.
Standard lock body: usually divided into 50*58 lock body and 60*68 double fast lock body, standard lock side plate 24*240. The distance from the center of the square bar hole of the lock body to the center of the lock head hole is divided into 58 lock 50 lock body. The 6068 lock body is the center distance and hole distance, and is generally named directly according to the specifications. In addition, there are large lock bodies and small lock bodies, for example: the lock body is divided into large 50 locks and small 50 lock bodies according to size. Standard lock body size: 24*240 (mm) or 30*240 (mm) Overlord lock body size: 30*388 (mm) or 40*388 (mm)