紧固件(螺丝等)标准参数手册1(7)

紧固件(螺丝/螺帽/垫圈/铆钉等)标准参数手册

SCREW HEAD螺絲頭型

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Hexagonal Head切六角頭Designation A of screw (d) Max MinM1.6 M2 M2.5 M3 (M3.5) M4 M5 M6 M8 M10 M12 (M14) M16 (M18) M20 1.6 2 2.5 3 3.5 4 5 6 8 10 12 14 16 18 20 1.46 1.86 2.36 2.86 3.32 3.82 4.82 5.82 7.78 9.78 11.73 13.73 15.73 17.73 19.67

JIS B1180 unit: mm

ds B Max16 18 20

k C A Min4.52 5.52 7.42 9.42 11.3 13.3 15.3 17.3 19.16

B Min Max Min Max10.29 9.71 11.85 11.15 12.85 12.15

C Min3.125 3.625 4.925 5.95 7.05 8.35 9.25 10.6 11.6 3.875 4.375 5.675 6.85 7.95 9.25 10.75 12.4 13.4

Min15.57 17.57 19.48

Max5.48 6.48 8.58 10.58 12.7 14.7

16.7 18.7 20.48

Max

Shing Hing Industrial Limited - FASTENERS HANDBOOK

1.225 0.975 1.525 1.275 1.825 1.575 2.125 1.875 2.525 2.275 2.925 2.675 3.65 3.35 4.15 3.85 5.45 5.15 6.58 6.22 7.68 7.32 8.98 8.62 10.18 9.82 11.715 11.285 12.715 12.285

Designation of screw (d)M1.6 M2 M2.5 M3 (M3.5) M4 M5 M6 M8 M10 M12 (M14) M16 (M18) M20

s A Max3.2 4 5 5.5 6 7 8 10 13 16 18 21 24 27 30

B Min Min23.16 26.16 29.16

C Min7.64 9.64 12.57 15.57 17.57 20.16 23.16 26.16 29.16

3.02 3.82 4.82 5.32 5.82 6.78 7.78 9.78 12.73 15.73 17.73 20.67 23.67 26.67 29.67

18

紧固件(螺丝/螺帽/垫圈/铆钉等)标准参数手册

19Shing Hing Industrial Limited - FASTENERS HANDBOOK