螺纹基本尺寸表吋制螺纹基本尺寸表公称直径\"3/161/45/163/87/161/29/165/83/47/811 1/81 1/41 3/81 1/2公称直径\"1/81/43/81/25/83/47/811 1/81 1/41 3/81 1/21 3/422 1/42 1/2公称直径\"1/161/81/43/85/83/411 1/41 1/22每吋牙数242018161412121110987766每吋牙数28191914141414111111111111111111每吋牙数螺纹直径mm(外)4.636.207.7.6310.9312.5014.0815.6518.8121.9625.1128.2531.4234.5637.73螺纹直径mm(外)9.79213.15816.66320.95622.91226.44230.20233.25037.841.91244.32547.80553.74859.61665.71275.187螺纹直径mm(外)7.510.27213.57217.05521.22326.56833.22841.98548.05460.092美制螺纹基本尺寸表 \"Straight Thread5/16 247/16 20 9/16 183/4 161 1/16 121 5/16 12NPT Thread1/161/81/43/81/23/411 1/41 1/22Parallel Thread 1/8 1/4 3/8 1/2 3/4 1基面上螺纹直径mm(外)9.72913.15816.66320.95626.44233.2541.9121147.80559.61675.187International \"Tapered Thread1/8 1/43/8 1/23/4 1公称直径\"1/81/43/81/23/411 1/41 1/222 1/2每吋牙数2819圆柱管螺纹基本尺寸表牙形角55°圆锥管螺纹基本尺寸表14牙形角60°圆锥管螺纹基本尺寸表梯形螺纹 mm公称直径10 12 1416 18 2022 24 26 2830 32 34 36 38 40 4244 46 48 50 52 55 6065 70 75 8085 90 95 100 110120 130 140 150 160 170 180 190200 210 220 240 250 260 280 300螺距 3 2 4 28 5 210 6 3 12 8 316 10 420 12 524 16 624 16 832 20 832 20 1040 24 1227181411 1/2
