GB_Hexagon nuts grade C GB-T 41-2000 FastenerNameFastenerIDSizeM5M5M5M6M6M6M8M8M8M10M10M10M12M12M12M14M14M14M16M16M16M18M18M18M20M20M20M22M22M22M24M24M24M27M27M27M30M30M30M33M33M33M36M36M36M39M39M39M42 HexagonnutsgradeCGB/T41-2000GB_NUT_TYPE01NominalDiameter...