六角沉孔头螺丝[JIS B1176(1988) *JIS B1176(1976)]的沉头及螺丝孔的尺寸

螺丝称号(d)M3M4M5M6M8M10M12M14M16M20M24M30
ds3.3456810121416202430
ds’3.44.55.56.6911141618222633
dk5.578.5101316182124303645
dk´6.589.5111417.5202326323948
k3456810121416202430
k´2.73.64.65.57.49.21112.814.518.522.528
k´´3.34.45.46.58.610.81315.217.521.525.532
螺丝称号(d)M3M4M5M6M8M10M12(M14)M16M20M24M30
螺牙节距(p)0.50.70.811.251.51.75222.533.5
b参考182022242832364044526072
dk
最大(基准呎吋)5.578.5101316182124303645
最大5.687.228.7210.2213.2716.2718.2721.3324.3330.3336.3945.39
最小5.326.788.289.7812.7315.7317.7320.6723.6729.6735.6144.61
da最大3.64.75.76.89.211.213.715.717.722.426..433.4
ds
最大(基准呎吋)3456810121416202430
最小2.863.824.825.827.789.7811.7313.7315.7319.6723.6729.67
k
最大(基准呎吋)3456810121416202430
最小2.863.824.825.707.649.6411.5713.5715.5719.4823.4829.48
r最小0.10.20.20.250.40.40.60.60.60.80.81
s基准呎吋2.534568101214171922
最小2.523.024.025.026.028.02510.02512.03214.03217.05019.06522.065
最大
(1)
1栏2.5803.0804.0955.1406.1408.17510.11512.21214.21217.23019.27522.275
2栏2.5603.0804.0955.0956.0958.11510.11512.14214.14217.23019.27522.275
t最小1.322.5345688101215.5