《常用螺纹底孔尺寸表》由会员分享，可在线阅读，更多相关《常用螺纹底孔尺寸表（1页珍藏版）》请在金锄头文库上搜索。
1、英制螺纹尺寸表英制尺寸公称直径底孔直径英制尺寸公称直径底孔直径SM1/4206。3505。080SM3/32562。3811.928SM1/4246。3505.290SM7/32225。5564.402SM1/4286。3505。443SM7/32325.5564。763SM1/4406.3505。705SM9/32207。1445.873SM1/8403.1752.540SM9/32287。1446。237SM1/8443。1752.598SM11/32288.7317。824SM1/8483。1752。646SM3/64321。1910。397SM3/8289.5208.620SM5/64
2、641。9841.511SM5/82815.8714.957SM9/64403.5722.937SM3/16244.7623.704SM11/64324.3663.572SM3/16324。7623。957SM11/64404。3663.731SM3/16284.7623。855SM13/32325.5194。366SM3/16404。7624.128SM15/64285。9535.046SM5/16187。9386.526SM17/64326.7475.953SM5/16247.9386。879SM1/22812。7011.792SM5/16287。9387。030SM1/21420。501
3、8。70英制内螺纹小径计算公式：螺纹直径25。425。4/每英尺牙数例：11/6440=11/6425.4-25。4/40=4.3656-0.6353.73公制螺纹尺寸表公制螺纹M1M2M2.5M3M3.5M4M4.5M5M6M7M8M10M12M14M16粗牙螺距0.250.40.450.50.60。70.750.8111。31.51。7522钻头直径0。751。62。052。52.93.33.754.2566。78。510。211。913.9细牙螺距0。20。30.40。50.50。810.7511。250.751。51。2511。51.2511。51钻头直径0.81。82.73.54.55.277。298.79.210。510。71112。512。71314.51.5公、英制转换英寸值1/641/561/481/441/401/321/28公制值0。3970.4540。5290.5770.6350.7940.907英寸值1/241/201/181/161/81/41/2公制值1.0581.271.4111。5883。1756.3512.7
