lift arm pin 1-1/8-In. x 1-3/4-In.; category 2 adjustable; lift arm pins connect implement to lift arms on tractor; overall length 6-1/8-In.; useable length 1-3/4-In.; pin diameter 1-1/8-In.; pin type u; thread 1-1/8 nf; nut(s) and washer included; yellow zinc plated to resist corrosion