常用标准件查询表

螺纹的公称

直径（d)

ds d′dk D′ k H′H′′

M33 3.4 5.5 6.53 2.7 3.3M44 4.5784 3.6 4.4M55 5.58.59.55 4.6 5.4M66 6.610116 5.5 6.5M889131487.48.6M1010111618109.211M1212141820121113M1414162123141315M1616182426161518M1818202729181720M2020223032201922M2222243335222124M2424263639242326M2727304043272529M30

30

33

45

48

30

28

32

参考：内六角螺栓的沉头孔及螺栓孔的尺寸 单位：mm

d2

2.6

3.4

4.3

5.1

6.9 8.6 10 12 14 16 18 20 21 24 27