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1、常用螺丝及沉头孔尺寸表规格螺丝头直径螺丝头厚度螺丝杆直径沉头孔直径沉头孔深度通过孔直径M23.84.53.02.5M35.56.03.53.5M47.07.54.54.5M58.59.05.55.5M610.065.8116.56.5M812.087.8138.58.5MlO15.0109.81610.510.5M1217.812.511.81912.512.5M14M16241615.92616.517螺丝称号（d）M3M4M5M6M8MlOM12(Ml4)M16M20M24M30螺牙节距（P）0.50.70.811.251.51.75222.533.5b参考1820222428323640
2、44526072dk最大（基准尺寸）5.578.5101316182124303645最大5.687.228.7210.2213.2716.2718.2721.3324.3330.3336.3945.39最小5.326.788.289.7812.7315.7317.7320.6723.6729.6735.6144.61da最大3.64.75.76.89.211.213.715.717.722.426.433.4ds最大（基准尺寸）3456810121416202430最小2.863.824.825.827.789.7811.7313.7315.7319.6723.6729.67k最大（基准尺寸
3、）3456810121416202430最小2.863.824.825.707.649.6411.5713.5715.5719.4823.4829.48r最小0.10.20.20.250.40.40.60.60.60.80.81S基准尺寸2.534568101214171922最小2.523.024.025.026.028.02510.02512.03214.03217.05019.06522.065最大(1)1栏2.5803.0804.0955.1406.1408.17510.11512.21214.21217.23019.27522.2752栏2.5603.0804.0955.0956.0958.11510.11512.14214.14217.23019.27522.275t最小1.322.5345688101215.5
