Our Standard Category 1 Top Link Pin, 3/4" (19.05mm) and 4-1/2" overall length, 2-3/4" usable length with 15/32" Lynch Pin Hole (accepts standard 7/16" Lynch Pin). Trivalent White Zinc Finish resists rusting and corrosion. Mild Steel Material 3/4" Diameter (19.05mm) 4-1/2" overall Length 2-3/4" Usable Length 15/32" Pin Hole White Zinc Plated Fits most Category 1 Tractors Part Number: 106042 We stock a wide variety of replacement parts for Agricultural Equipment please contact us if you have any questions or if you would like more information.