Hitch Pin Pin Diameter 1 1/4 in Shank Diameter 1 1/4 in Shank Length 1 1/4 in Pin Type Detent Material Steel Material Grade/Class Grade 1038/Grade 4140 Finish Zinc Plated Usable Length 7 in Product Type Hitch Pins System of Measurement Inch Maximum Hole Size 0.3 in Minimum Hole Size 0.25 in Head Diameter 19/64 in Material Quality Standards Not Applicable Dimensional Standards Not Applicable Pack Size Small Pack Head Diameter Tolerance +0.05/-0.00 in