Cup Magnet with Bolt, Material Ceramic Magnet, Max. Pull 90 lb, Thickness 0.375 in, Overall Length 2 7/64 in, Overall Width 2 7/8 in, Diameter 2 7/8 in, Tap Size 1/4-20 Bolt, Stability Temp. 300 Degrees F. This item has been restricted from sale in the following state (s): []