I think you are looking for item "C"you don't need socket headed flat screws, but can use the ugly assed old style normal bolts if you want
When you look under your fender you see that the available real estate has been encroached by some large protruding fasteners. You can remove some of them and replace them with stainless steel flat head and pan head socket type fasteners from:
www.boltdepot.com/product.aspx?cc=25&cs=82&cm=19&cd=1318The list of possible replacement fasteners goes like this:
Item # C
Product #6698
Metric socket flat head screws, Stainless A-2, 8mm x 1.25 x 16mm
Quantity: 4 pieces
Price: $0.54
Subtotal: $2.16
Item # B
Product #6702
Metric socket flat head screws, Stainless A-2, 8mm x 1.25 x 35mm
Quantity: 4 pieces
Price: $0.73
Subtotal: $2.92
Item #A
Product #6657
Metric socket button head screws, Stainless A-2, 8mm x 1.25 x 25mm
Quantity: 4 pieces
Price: $0.96
Subtotal: $3.84
Item #D Welded Nut
Shorten slightly with 4" grinder
Overmold (blend a hump) with JB Weld Epoxy
Paint with silver touch up paint
Item #E (not shown) Mounting bolt for Right Buddy Peg
Shorten slightly with 4" grinder
Paint with black touch up paint