CURT Manufacturing 40001 Trailer Hitch Fits 1-7/8" couplers and accepts up to 2,000 lbs. GTW (tested for safety to meet U.S. VESC V-5 specifications) 3/4" shank diameter, 1-5/8" shank length, 0" shank rise (160 lb.-ft. torque required) Constructed from high-strength, hot-forged steel and protected by a durable chrome-plated finish Zinc-plated hex nut and helical lock washer for secure mounting (mounting platform must be at least 3/8" thick, and hole size must not be more than 1/16" larger in diameter than the threaded shank) Features fine threads for superior holding strength