5/16-18in Well Nut Black Rubber

These well nuts are made from neoprene and includes a captive brass nut molded into one end. They are commonly used with a conventional screw to make a secure fastening. They work to muffle noise, dampen vibrations and can fasten in blind holes. Common applications include: automotive and boating. 13011 Head Diameter : 0.875" Overall Length : 0.725" Shank Length : 0.600" Shank Diameter : 0.620" Head Thickness : 0.125" Hole Size : 5/8" Grip Range : 0.015-0.187" Material : Neoprene Includes : Captive Brass Nut