4 bolt cast flange has holes for 1/2" bolts. Hole measurement from side to side is 3.25" on center. Hole measurement accross the center hole is 4 5/8" center to center.
Notes:
All prices are USD. If imported into Canada/Internationally there will be brokerage costs collected by the carrier. Check the"Canada/World" link at the top of the page for more info. Please note that Hy-Capacity items can not be shipped to Canada / International.