lift arm pin 1-1/8-In. x 1-3/4-In.; category 1-2; lift arm pins connect implement to lift arms on tractor; overall length 5-1/4-In.; useable length 1-3/4-In.; pin diameter 1-1/8-In.; pin type a-m; thread 7/8 nf; nut(s) and washer included; yellow zinc plated to resist corrosion