|Lever arm, insert, screw and spring: Steel, black oxide finish
Theaded stud: Steel, black oxide finish, tensile strength class 5.8 (500 N/mm2)
GN 99.2 adjustable clamping levers are known for their small dimensions.
They are used in applications where either the clamping range is limited, or a specific lever position is required. The serrated bore in the spherical hub is assembled together with a threaded screw, spring and mating insert which engages in the hub via its own serrations.
By depressing the clamping lever the serrations are disengaged, freeing it for re-positioning in the most convenient position. When the lever is released, the serrations will re-engage automatically.
Should a rotation of 360° not be possible, the insert can be slightly screwed in (after the lever has been disengaged) by means of the slotted knurled screw.