This 7 inch headlight bucket (shell) is good for custom applications, or to replace discontinued original equipment. Chrome plated steel bucket and ring, includes lamp retaining rings and wire pigtail with 3 prong plug. Does not include bulb, lens or reflector, uses any standard 7 inch headlight. Metric 8mm threads are used to secure the headlight to the headlight supports, bolts are not provided. Approximate outside diameter (and distance between mounting bolts) of this headlight is 7.875 inches.