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PolyMount Leveling Mount BMNYLD58 Nylon Stud Style Leveler: Home Improvement. Buy PolyMount Leveling Mount BMNYLD58 Nylon Stud Style Leveler: Fasteners - ✓ FREE DELIVERY possible on eligible purchases. The one-piece ball with stud swivels 15 degrees in all directions and is forged and roll-threaded for maximum strength and Durability 。 For anti-skid applications and light-duty vibration control, polymounts are available with an elastomer pad 。 Diameters range from 1.5'' to 5'' and capacities are as high as 10,000 pounds. For especially harsh applications our exclusive socket lock technology will lock the stud in place, preventing pullout 。 Polymounts are economical leveling mounts for light, medium and heavy-duty applications. The sleek design is suitable for everything from production machinery, conveyors and electronic equipment to retail displays and expensive office furniture. Standard stud materials are clear Zinc plated steel and stainless steel. For applications where a stud is already in place, a one-piece tapped ball version is available. The molded base is corrosion resistant glass-reinforced nylon and has pop-out lag holes for securing the mounts to the floor. 。 。 。