LPST LEVELING MOUNTS SWIVEL 10-15 degrees TO ALL SIDES OF THE CENTERLINE TO ADJUST TO UNEVEN SURFACES USED FOR LEVELING MACHINE TOOLS ELECTRONIC RACKS BENCHES ETC. LARGE DIAMETER PAD DESIGN ASSURES SOLID SUPPORT. COUPLING NUT IS NOT RECOMMENDED TO USE FOR INSTALLATION. USE NUT ON TAPPED HOLE OF 1 - 1 1/2 TIMES THE THREAD DIAMETER BEING USED. TO INSURE PROPER LEVELING MOUNT SIZE DIVIDE THE MACHINE WEIGHT BY THE NUMBER OF MOUNTS REQUIRED. THIS WILL EQUAL THE POUNDS OR LOAD PER MOUNT. THIS PRODUCT IS PROHIBITED FROM SHIPPING TO CALIFORNIA.