6938-1 Acorn nuts

This large-scale Colony acorn nut is designed for heavy-duty applications where a finished, professional look is required for exposed threads. With a 5/8-18 SAE thread and a 15/16-inch hex size, this nut is typically used on axle ends or major chassis pivot points. The deep chrome plating provides a mirror-like finish that protects the underlying steel while enhancing the overall appearance of the motorcycle's hardware. Colony Machine is well-regarded for producing accurate reproductions and custom fasteners that stand up to the vibrations of a V-Twin engine. This acorn nut is sold individually and is a reliable choice for builders looking to replace standard hex nuts with a more refined fastener.