Axle Nut Hex Size (mm): 30 Number of Internal Splines: 23 Number of External Splines: 26 Overall Compressed Length (in): 25.71 Overall Compressed Length (mm): 653 Inner Shaft Joint Style: Male Outer Shaft Joint Style: Regular ABS Tone Ring Included: No Axle Nut Head Type: Hex Axle Nut Height (in): 6/7 Axle Nut Length (in): 1 1/3 Axle Nut Height (mm): 21.5 Axle Nut Length (mm): 34.6 Axle Nut Locking Type: Pin Axle Nut Hex Size (in): 1 1/6