5/8 inch x 1-1/4", lift arm pin, category 0 adjustable, lift arm pins connect implement to lift arms on tractor, overall length 3-7/8", useable length 1-1/4", pin diameter 5/8", pin type U, thread 5/8 nf, yellow zinc plated to resist corrosion. This product is manufactured in china. Excellent for industrial and domestic use.