Carr Lock® Clamps should only be used to locate and clamp flat plates on machine tools. Each top plate should have one Carr Lock® mount designated as its primary reference point, and one as its secondary reference point. These two mounts should be as far apart as possible. The secondary reference point should have a relieved liner to avoid redundant location (binding). Additional Carr Lock® Clamps can be used for more clamping force, but these should be installed in clearance holes, not locating liners. Note that the same Carr Lock® Clamp fits into any type of liner or a clearance hole. Carr Lock® Clamps must be used with Carr Lock® Receiver Bushings for proper operation. Plate thickness must be +/-.005" to achieve full clamping force. Do not exceed maximum screw torque shown.