螺紋毛坯直徑與鉆頭直徑選用表

1、螺紋毛坯直徑與鉆頭直徑選用表公稱螺距直徑1.2 1.4 1.6 1.8 1* 1.2*2.2 1.4* 1.6* 1.8* 2.53.5 2*23 / 292.2* 2.5* 3*100.2螺孔毛坯直徑D'l基本 尺寸0.79 0.99 1.19 1.39 1.59 0.74 0.94 1.74 1.94 1.09 1.241.44 2.14 2.64 3.14 1.58 1.73 2.03 2.48 3.48 4.48 5.48 7.48 9.48 極限偏差5H6H7H鉆頭 直徑d2 0.8 1.0 1.2 1.41.6 0.75 0.95 1.75 1.95 1.10 1.25 1

2、.45 2.15 2.65 3.15 1.60 1.75 2.05 2.50 3.50 4.50 5.50 7.50 9.50610 12 14 16 18 20 22 24 27 30 33 5*0.755.22 7.22 9.2211.2213.2215.2217.2219.2221.2223.2226.2229.2232.224.17公稱直徑1214161820223.5*4*螺距P螺孔毛坯直徑D'基本尺寸11.4813.4815.4817.4819.482.883.27 極限偏差 5H+0.0906H+0.1207H+0.160 鉆頭直徑 d211.5013.5015.5017

3、.5019.5021.50 公稱直徑D6*7*8101214161820222427303336394245485256606468727680螺距 P 螺孔毛坯 直徑D基本尺寸4.965.966.968.9610.9612.9614.9616.9618.9620.9622.9625.9628.9631.9634.9637.9640.9643.9646.9650.9654.9658.9662.9666.9670.9674.9678.96 極限偏差 5H+0.1506H+0.1907H+0.260 鉆頭直徑 d25.006.007.009.0011.0013.0015.0017.0019.002

4、1.0023.0026.0029.0032.0035.0038.0041.0044.0047.00+0.04+0.06000.50.25_0.6+0.040.6+0.10+0.13+0.172.90000+0.11+0.15+0.193.30000+0.120+0.120+0.2005.207.209.2011.2013.2015.2017.2019.2021.2023.2026.2029.2032.200.3 0.35+0.05+0.07 00 +0.06 0+0.080.4 0.45 0.5+0.07+0.10 00 +0.08+0.10 00 +0.09 0+0.12+0.16 00.8

5、+0.13+0.17+0.224.20000公稱螺距直徑8* 9* 10 12 10* 11* 12 14 16 18 20 22 24 27 30 33 36 39 4245 48 52 56 60 64 68 72 76 801.25 1.5螺孔毛坯直徑D'l基本 尺寸6.70 7.70 8.70 10.70 8.44 9.4410.4412.4414.4416.4418.4420.44 22.44.25.4428.4431.4434.4437.4440.4443.4446.4450.4454.4458.4462.4466.4470.4474.4478.44 極限偏差5H +0.1

6、5+0.17 06H +0.20+0.23 07H +0.27+0.31 0 鉆頭 直徑d2 6.7 7.7 8.7 10.7 8.5 9.510.5 12.5 14.5 16.5 18.5 20.5 22.5 25.5 28.5 31.5 34.5 37.5 40.5 43.5 46.5公稱直徑85 90 95 100 105 110 115 120 125 130 135 140 145 150 12* 14* 16 18 2022 24 27 30 33 36 39 42 45 螺距P螺孔毛坯直徑D'基本尺寸83.4488.4493.4498.44103.44108.44113.

7、44118.44123.44128.44133.44138.44143.44148.4410.1711.9013.9015.9017.9019.9021.9024.9027.9030.9033.9036.9039.9042.90 極限偏差 5H+0.1706H+0.2307H+0.310 鉆頭直徑 d2公_ 稱直徑D48525660646872768085909510010511011512012513013514014515018*20*22*24*27*3033螺距P2螺孔毛坯直徑D'基本尺寸45.949.953.957.961.965.969.973.977.982.987.99

8、2.997.9102.9107.9112.9117.9122.9127.9132.9137.9142.9147.9 極限偏差 5H+0.2406H+0.3007H+0.400 鉆頭直徑 d246.050.01.51.752+0.19+0.27+0.3510.2000+0.240+0.300+0.40012.014.016.018.020.022.025.028.031.034.037.040.043.02.5315.3715.417.37+0.28+0.38+0.4917.419.3700019.420.8323.83+0.32+0.42+0.5526.8300029.8320.923.926

9、.929.9 公稱螺距直徑3639424548525660646872768085909510010511011512012513025 / 291351401451503螺孔毛坯直徑D'l基本尺32.8335.8338.8341.8344.8348.8352.8356.8360.8364.8368.8372.8376.8381.8386.8334 / 2991.8396.83101.83106.83111.83116.83121.83126.83131.83136.83141.83146.8326.3029.30 極限偏差5H+0.3206H+0.4207H+0.550 鉆頭直徑d2

10、32.935.938.941.944.948.9公稱直徑36*39*42*45*48*52*56*60*64*68* 螺距P螺孔毛坯直徑D'基本尺寸31.7634.7637.2340.2342.6946.6950.1654.1657.6261.62極限偏差5H6H7H鉆頭直徑d2粗牙螺紋匯總M1X0.25M1.2X0.25M1.4X0.3M1.6X0.35M1.8X0.35M2X0.4M2.2X0.45M2.5X0.45M3X 0.5M3.5X0.6M4X0.7M5X0.8M6X1M7X1M8X1.25M9X1.25M10X1.5M11X1.5M12X1.7 5M14X2M16X24+

11、0.38+0.51+0.6631.800034.8+0.43+0.57+0.7537.300040.3+0.45+0.6 0+0.7942.800046.8+0.48+0.63+0.83_000_+0.51+0.68+0.88_0004.55.5使用說明M18X2.5M20X2.5M22X2.5M24X3M27X3M30X3.5M33X3.5M36X4M39X4M42X4 .5M45X4.5M48X5M52X5M56X5.5M60X5.5M64X6M68X630*3.533*+0.37+0.48+0.6326.300029.31表中注有 “ *表”示粗牙螺紋，一般粗牙螺紋在圖紙上不標注螺0.1mm 的鉆頭。距。如用鉆模鉆孔時，可選用比表中數值大2表中所列鉆頭，適用于中等