KMT 8 Precision lock nuts with locking pin detail Specifications: Material : 52100 Chrome Steel Weight : 0.29 Kg   Main Dimensions: Thread (G) : M40X1.5 Diameter side face opposite to bearing (d1) : 54 mm Outside diameter (d2) : 65 mm Outside diameter locating side face (d3±0.30) : 59 mm Inner diameter locating side face (d4±0.30) : 42 mm Width (B) : 22 mm Width locating slot (b) : 6 mm Depth locating slot (h) : 2.5 mm Width flat spanner (M 0/-0.50) : 60 mm Set / Locking screw size (A) : M8 L : 2 mm C : 59.5 mm R1 : 0.5 mm Sd : 0.04 mm