Bicycle Axle Nuts
Spanner Size: 15mm. Depth of nut with washer: 14.5mm. Weight: 21g.
This is a Shimano nut, from the FH-RM40 hub. Thread: M10 x 1.
Non-turn washer for Shimano multi-speed hubs. The blue works in conjunction with the green.
Moruya Bicycles. ABN 27 559 728 517. 10 Ford St Moruya NSW 2537 Australia.