Microlock Tiedowns are the best way to precisely level a breadboard. Microlocks can be used to mount breadboards on an optical table or directly onto any vertical or horizontal structure.
Newport Microlocks consist of a 5/8-18 tapped tube welded into the breadboard structure. A 5/8-18 threaded insert is then used to set the stand-off height. The breadboard can then be mounted with a 1/4-20 or M6 bolt; a 5/8-18 plug locks the system in place.
Microlocks are normally positioned 1/6 of the length/width dimension in from the edge of the breadboard, with an additional Microlock in the center of the boards with larger sizes. With metric mounting holes, the Microlock positions are adjusted slightly to place them directly between the ranks of mounting holes. This provides automatic alignment of the Microlocks with the mounting holes in the supporting table when both the breadboard and the table have the same type mounting holes.

Microlock Tiedowns are the best way to precisely level a breadboard. Microlocks can be used to mount breadboards on an optical table or directly onto any vertical or horizontal structure.
Newport Microlocks consist of a 5/8-18 tapped tube welded into the breadboard structure. A 5/8-18 threaded insert is then used to set the stand-off height. The breadboard can then be mounted with a 1/4-20 or M6 bolt; a 5/8-18 plug locks the system in place.
Microlocks are normally positioned 1/6 of the length/width dimension in from the edge of the breadboard, with an additional Microlock in the center of the boards with larger sizes. With metric mounting holes, the Microlock positions are adjusted slightly to place them directly between the ranks of mounting holes. This provides automatic alignment of the Microlocks with the mounting holes in the supporting table when both the breadboard and the table have the same type mounting holes.