美制螺絲規(guī)格

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1、美制螺絲規(guī)格,美制螺絲規(guī)格表美制外螺紋（2A）常用螺絲規(guī)格極限尺寸表（粗牙）公稱尺寸和每英寸牙數(shù)螺紋系列代號大徑極限中徑極限小徑max螺胚直徑最小最大最小最大最小最大?8-32UNC?0.1571?0.1631?0.1399?0.1428?0.1248?3.58?3.61?(0.164-32)3.9903?4.1427?3.5535?3.6271?3.1699??10-240.1818?0.1890?0.1586?0.1619?0.1379?4.07?4.10?(0.190-24)4.6177?4.8006?4.0284?4.1123?3.5027??1

2、2-240.2078?0.2150?0.1845?0.1879?0.1639?4.72?4.75?(0.216-24)5.2781?5.4610?4.6863?4.7727?4.1631??1/4-200.2408?0.2489?0.2127?0.2164?0.1876?5.45?5.48?(0.250-20)6.1163?6.3221?5.4026?5.4966?4.7650??5/16-180.3026?0.3113?0.2712?0.2752?0.2431?6.94?6.98?(0.3175-18)7.6860?7.9070?6.8885?6.99

3、01?6.1747??3/8-160.3643?0.3737?0.3287?0.3331?0.2970?8.40?8.44?(0.375-16)9.2532?9.4920?8.3490?8.4607?7.5438??7/16-140.4258?0.4361?0.3850?0.3897?0.3485?9.83?9.87?(0.4375-14)10.8153?11.0769?9.7790?9.8984?8.8519??1/2-130.4876?0.4985?0.4435?0.4485?0.4041?11.34?11.38?(0.50-13)12.3850?1

4、2.6619?11.2649?11.3919?10.2641?9/16-120.5495?0.5609?0.5016?0.5068?0.4587?12.80?12.84?(0.5625-12)13.9573?14.2469?12.7406?12.8727?11.6510??5/8-110.6113?0.6234?0.5589?0.5644?0.5119?14.27?14.32?(0.625-11)15.5270?15.8344?14.1961?14.3358?13.0023??3/4-100.7353?0.7482?0.6773?0.6832?0.625

5、5?17.28?17.33?(0.750-10)18.6766?19.0043?17.2034?17.3533?15.8877??7/8-90.8592?0.8731?0.7946?0.8009?0.7368?20.27?20.32?(0.875-9)21.8237?22.1767?20.1828?20.3429?18.7147?1"-80.9830?0.9980?0.9100?0.9168?0.8446?23.22?23.27?(1.000-8)24.9682?25.3492?23.1140?23.2867?21.4528??美制外螺紋（2A）常用螺絲

6、規(guī)格極限尺寸表（細牙）公稱尺寸和每英寸牙數(shù)螺紋系列代號大徑極限中徑極限小徑max螺胚直徑最小最大最小最大最小最大?8-36UNF0.1577?0.1632?0.1424?0.1452?0.1291?3.65?3.67?(0.164-36)4.0056?4.1453?3.6170?3.6881?3.2791??10-320.1831?0.1891?0.1658?0.1688?0.1508?4.24?4.27?(0.190-32)4.6507?4.8031?4.2113?4.2875?3.8303??12-280.2085?0.2150?0.1886?0.1

7、918?0.1712?4.82?4.85?(0.216-28)5.2959?5.4610?4.7904?4.8717?4.3485??1/4-280.2425?0.2490?0.2225?0.2258?0.2052?5.69?5.71?(0.250-28)6.1595?6.3246?5.6515?5.7353?5.2121??5/16-240.3042?0.3114?0.2806?0.2843?0.2603?7.17?7.20?(0.3175-24)7.7267?7.9096?7.1272?7.2212?6.6116??3/8-240.3667?0.37

8、39?0.3430?0.3468?0.3228?8.75?8.78?(0.375