Facebook Twitter LinkedIn Pinterest Bluesky Threads Does anyone know the countersunk bolt size and length used for these 2 holes to mount the H&H front carrier block v1 to the bike? by heero_lim Bicycle Bicycling Bike Biking Brompton Bicycle Brompton Bike Brompton Folding Bicycle Brompton Folding Bike Cycling Folding Bicycle Folding Bike