Split locating column, also known as indexing locating column, split bolt, knob plunger, indexing pin. The principle is the same as that of the locating column, using a handle or pull ring to control the pin to position or release. It includes general type, flange seat type, mini type, and can be matched with an adjustment ring to control the height. It is usually used in machinery, mechanisms, molds, equipment, home appliances, furniture, etc.