M785 axles can be used with M775 hubs also, although they're not identical. Theycannot however be used with M788, which is an oversize axle. The M785 axles will likely work with T780 trekking hubs also, although I need to confirm this.
Shimano Front & Rear Hub Bearings (22x3/16" & 18x1/4")
SHIMANO SAINT REAR HUB AXLE SM-AX80 12mm x 183mm FITS FH-M815 + FH-M825 +FH-M645
Shimano MicroSpline Rear Hub Bearing Set HB MT410B
Shimano Sora Rear Hub 36h 10 Speed FHT-3000
Shimano XTR Rear Hub QR Quick Release Skewer | VGC / Made in Japan
Zipp Bike Spare Springs 177 Rear Hub Qty 4