Rigid RPM-825 Hollow 2-1/2 Shank Pintle Mount - Made in U.S.A. Converts 2-1/2 inch receivers for use with pintle-type trailers, quickly and easily Provides mounting for both ball and pintle or rigid type pintle hooks Rated 16,000 lbs. gross trailer weight, 3,200 lbs. tongue weight Standard bolt hole configuration - 1-3/4" x 3-3/8" - 9/16" holes 8" shank length (measured from center of hitch pin to the front of the mounting plate)