Insertable length with 2mm spacer = 173mm. Thread pitch M12 x 1.5. Full insertable length = 175mm.
12mm x 173mm x 1.0mm Pitch Bicycle Rear Thru Axle
3801 MAX | 12mm x 21mm x 8mm | Blueseal Bike Bearings
12mm x 175mm x 1.5mm MTB Rear Thru Axle
12mm x 174mm x 1.75mm MTB Rear Thru Axle
12mm x 125mm x 1.5mm Bike Thru Axle
12mm x 174mm x 1.0mm Pitch Bicycle Rear Thru Axle With Conical Washer