For different axle types:
Brake axle, add suffix "B"
Lube axle, add suffix "L"
Stainless Steel axle, add suffix "SS"
Unplated axle, add suffix "U"
Note- In order to order axle with nut
as an Axle Assembly (1 Axle and 1 Nut),
use prefix "AN" instead of "AX"