1-1/8" x 1-3/4", Lift Arm Pin, Category 1-2, Lift Arm Pins Connect Implement To Lift Arms On Tractor, Overall Length 5-1/4", Useable Length 1-3/4", Pin Diameter 1-1/8", Pin Type A-M, Thread 7/8 NF, Nuts & Washer Included, Yellow Zinc Plated To Resist Corrosion.