【Measurement】: The diameter of the hitch ball is 2-5/16 inch; the mounting hole on the back whole separation a part on center go in horizontal direction is 3., 12 inches, and the Portrait direction is 1., 78 inches; The diameter of these mounting holes is 1/2 inch 【Durable and Dependable】- Nilight specializes in the production of trailer accessories. About this item [Heavy Duty Trailer Hitch]- The Working Load limit of 2-5/16''Ball is 14000LBS. The Working Load limit of Pintle Hook is 17636LBS. Perfect for towing trailer, campers, hauling motorcycles and ATVs (weight capacity may change if trailer ball is removed) | [Product Dimensions]- This Pintle Hook Trailer Hitches Receiver Hook comes with a 2-5/16 inch trailer hitch ball to... The Working Load limit of Pintle Hook is 17636LBS. Nilight Pintle Hook Trailer Hitches Receiver Hook Combination 2-5/16” Hitch Ball with Mounting Kit 8-Ton Pintle Hook Trailer Combination Hitch Receiver 2-5/16 Nilight Pintle Hook Trailer Hitches Receiver Hook Combination 2-5/16" Hitch Ball with Mounting Kit, 14000LBS Black Bolt On Adjustable Powder-Coated Perfect for towing trailer, campers, hauling motorcycles and ATVs (weight capacity may change if trailer ball is removed) Two stage finish using E-Coat pre-coating and high-grade textured black powder coating, and the trailer ball has a polished chrome plating for long lasting corrosion resistance Whether you’re towing a full-size travel trailer or a simple utility trailer, you can rest assured in the reliability of your Nilight towing connection. Adjustable Pintle Hook Nilight - - Nilight Pintle Hook Trailer Hitches Receiver Hook Combination 2-5/16" Hitch Ball With Mounting Kit, 14000LBS Black Bolt On Adjustable Powder-Coated Heavy Duty Towing Hitch 2 Years Warranty Honored by Nilight