Profile 3/8" - 14mm Volcano adapters
aluminum Volcano adapter set with steel washers (2x Volcano adapters and 2x washers)
hides those unsightly 3/8" x 16 tpi socket head bolts!
alloy Volcano adatper has a 3/8" hole, and 4mm deep lip to fill in the gap between a 3/8" bolt and 14mm dropout slot
steel washers go in between Volcano adapters and frame