[Dick Boneske]

I'm confused. There is a 3/8" bolt with depressed head and integral large washer that holds the fender to the frame. The body shims used between the fender and frame here are critical to alignment of the fender to the door and to the rocker panel.

There is a 5/16" depressed head bolt that holds the inner and outer fenders together forward of the larger bolt. This smaller bolt had no connection to the frame--it just holds and aligns the inner and outer fenders.

I spent many hours (several days) getting these fasteners and shims right to get the fender to door to rocker panel alignment as good as I could. By the time I was done with this, the washer and bolt head design were not high on my priority list.