The OP1C adjustable height post from LBTEK features a Ø38 mm outside diameter with an M6 tapped hole at the top. When attached to the support base, its height adjusts from 108 mm to 148 mm. Without the support base, the adjustment range becomes 106 mm to 142 mm, secured by a knurled locking nut. Both the post and locking nut feature key holes for 5 mm hex keys or balldrivers for tightening or loosening. The bottom of the post includes a base that can be fixed to breadboards or optical platforms using clamping forks, or removed to mount the post to other components via the M6 tapped hole and an adapter screw for height adjustment.