Description:Cat ball studs are for mounting gas spring cylinders to support and brace the weight of hinged assemblies when opened.Attributes:• Material: Steel• Ball Diameter: 12.954 mm (0.51 in)• Thread Size: 5/16-18• Thread Length: 15.748 mm (0.62 in)• Hex Size: 12.7 mm (0.5 in)Application:Cat ball studs are typically used on hood, cab, and door systems. Consult your owner's manual or contact your local Cat Dealer for more information.