▣ Metric (KS B 1002 JIS B 1180) Unit : mm Bolt dia- meter d1 H B C App R Min S Pitch Basic Tolerance Basic Tolerance Basic Tolerance Coa- rse Fine finish Semi- finish Regu lar finish Semi- finish Regu lar finish Semi- finish Regu lar M6 6 0 -0.1 - - 0 -0.2 +0.6 -0.15 - 4 ±0.15 ±0.25 ±0.6 10 0 -0.2 - 0 -0.6 - 0 -0.6 - 11.5 0.25 18 1 - M8 8 0 +0.7 5.5 13 0 0 0 15 0.4 22 1.25 1 M10 10 -0.1..