Turnbolt with square VK8

The rotary clamping latches GN 516.5 have a closing mechanism which transfers the rotary movement of the operating element resp. socket key into a 90° turn and then into a 6 mm linear stroke of the latch arm. This mechanism is designed to form a tight and vibration-proof latch in the end position (retaining position) in connection with an elastic element, such as a door or casing seal. Latch arms with different bend angles cover a latch arm distance A (retaining range) from 19 to 41 mm. If the measured retaining position lies between two latch arm distances A, the next smaller value must be selected. The rotary clamping latches GN 516.5 are are supplied with loosely enclosed latch arm.