Arnold Universal Wheel Bolts Fits 1/2-Inch Bore and 1/2-Inch Hub Replacement universal steel wheel bolts Fits wheels with 1/2" diameter hub, and wheel hub of 1-1/2" long or less For walk-behind mowers Includes two bolts and two flange nuts Replacement universal wheel bolts Fits wheels with 1/2" diameter hub, and wheel hub of 1-1/2" long or less For walk-behind mowers Bolts are made from steel for durability (purchase includes 2 bolts and 2 flange nuts) Shoulder/thread is 1.5"/.625"