The stability offered by LevelStar nylon base leveling pads comes via its nylon base and non-swivel design. These leveling pads lend themselves to high vibration/constant use situations where the need for machinery stability and eliminating machinery creep is a must. This leveler features a 300 Lbs. maximum weight rating, a stud with a fully integrated hexagonal nut, and is manufactured from steel with zinc plating to increase corrosion protection.