I'm pretty sure I tried the red bolts first but they wouldn't fit through the adapters. In fact, the two sets of white bolts have different sized washers, and only one pair would fit through the adapter to go into the forks (shorter ones, I think) and the other pair went through the flatmount adapters on the chainstay from bottom to top and were the perfect length to go right through the adapter and sit flush.
I'm pretty sure the red bolts are thicker and fit into the caliper mounting bolts on the adapters.
Also, you'd think there'd be six M5 bolts - four for cages and two for rack mount braze ons on the seat stay?
You do know you are literally nickel-and-diming the issue, don't you? Just go to your local fastener shop and give the bloke in a dun coat £1 if you think you need 10 more screws.
I'm pretty sure I tried the red bolts first but they wouldn't fit through the adapters. In fact, the two sets of white bolts have different sized washers, and only one pair would fit through the adapter to go into the forks (shorter ones, I think) and the other pair went through the flatmount adapters on the chainstay from bottom to top and were the perfect length to go right through the adapter and sit flush.
I'm pretty sure the red bolts are thicker and fit into the caliper mounting bolts on the adapters.
Also, you'd think there'd be six M5 bolts - four for cages and two for rack mount braze ons on the seat stay?