Hotchkis U-bolts

they are 8 inches long. or 6.5 from centerline of radius.these are not factory with the flat spot.

you can buy ones with the flat spot for $56 + $10 shipping + tax + buying nuts and washers at your hardware store.

heres a link if you want some like that. https://www.amkproducts.com/bulk-fasteners-products/?Product_ID=11503