精品技术资料螺纹攻牙钻孔径和滚造径对
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本表所推选钻头孔径,是针对攻牙加工时,能够很容易的了解钻头直径;而依据市售之标准钻头所选定的.在使用钻头的情况下,由于钻头的形状及尺寸,精度,被钻孔之材质等,对于所钻孔的尺寸,精度有很大影响,所以使用本表之钻孔径,若有不当之处,应实际状况适当的变更钻头直径,本表依据2级牙制订.
公制精螺纹规格标准径2级牙钻孔径最大最小M1.0×0....M1.1×0...8.M1.2×0...9.M1.4×0.31...M1.6×0....M1.7×0....M1.8×0....M2.0×0.41...M2.2×0....M2.3×0.41...M2.5×0....M2.6×0....M3.0×0.52...M3.0×0.62...M3.5×0.62..0.M4.0×0.73...M4.0×0....M4.5×0....M5.0×0.84...M5.0×0.94...M6.0×1.05...M7.0×1.06...M8.0×1....M9.0×1....M10×1.58...M11×1.59...M12×1.0...M14×2..0.21.M16×2..0.23.M18×2....M20×2....M22×2....M24×3..0..M27×3..0.3.M30×3..6..公制细螺纹规格标准径2级牙钻孔径最大最小M1.0×0.20...M1.1×0.20...M1.2×0.21..0.M1.4×0.21..0.M1.6×0.21...M1.7×0.21..5.M1.8×0.21..6.M2.0×0....M2.2×0....M2.3×0....M2.5×0...2.M2.6×0....M3.0×0....M3.5×0...3.M4.0×0.53...M4.5×0.54...M5×0.54...M5.5×0.55...M6.0×0....M6.0×0.55..5.M7.0×0....88M7.0×0.56..54.00M8.0×1.07...M8.0×0....M8×0.57...M9×1.08...M9×0....M10×1....M10×1.09...M10×0....M10×0.59...M11×1..0..M11×0.0...M11×1..5..M12×1.0.8.90.公制细螺纹规格标准径2级牙钻孔径最大最小M12×1..1..M12×0..5.51.4M14×1..5..M14×1..0..M15×1..5..M15×1..0..M16×1..5..M16×1..5..M17×1....M17×1..6..M18×2..6.25.M18×1..5.67.M18×1..7..M20×2..8.27.M20×1..5..M20×1..9..M20×2..0.29.M22×1..0..M22×1..0..M24×2..0.21.M24×1..2..M24×1..0..M25×2..0.22.M25×1..3..M25×1..0..M26×1..4..M27×2..0.24.M27×1..5..M27×1..0..M28×2..0.25.M28×1..6..M28×1..0..M30×3..0.6.M30×2..0.27.M30×1..8..M30×1..0..M32×2..0.29.M32×1..0..M33×3..0.9.M33×2..0.21.M33×1..1.31.M35×1..3..M36×3..0.32.M36×2..0.21.M36×1..4..美制细螺纹规格(UNF)标准径2级牙钻孔径最大最小番数牙外径NO.0-80(1.)1..1.NO.1-72(1.)1..6.NO.2-64(2.)1..9.NO.3-56(2.)2...NO.4-48(2.)2...NO.5-44(3.)2..7.NO.6-40(3.)2..2.NO.8-36(4.)3...NO.10-32(4.)4...NO.12-28(5.)4.../4-.../16-.../8-.../16-.0.9.1/2-1.5../16-.3..5/8-.5..3/4-.5../8-.0.60.-.3..-1/8-.6..-1/4-.9..-3/8-.3.02.-1/2-...无屑丝攻钻孔径规格精度等级RH4.5.6RH7.8RH9M1.0×0...88-M1.1×0...98-M1.2×0...08-M1.4×0.31..25-M1.6×0...43-M1.7×0...53-M1.8×0...63-M2.0×0.41..80-M2.2×0...98-M2.3×0.42..10-M2.5×0...28-M2.6×0...38-M3.0×0.52..75-M3.0×0.63..20-M4.0×0.73...69M5.0×0.84...64M6.0×1.05...55M7.0×1.06...55M8.0×1....44M10×1.59...32M10×1....44M12×1.1.0.1.21M12×1.1...44注:无槽丝攻之钻孔径,在上表所列之数值,由于被加工材料之材质、硬度、形状、尺寸等之影响,多少会有所变动，因此参考上表之同时,亦请增减若干.美制管螺纹规格(UNEF)标准径2级牙钻孔径最大最小NO.12-..4.1/4-.../16-..2./8-.../16-.0..1/2-.8.9./16-.2..1/8-4.8..3/4-7.8../8-1.0..8-4.0.24.美制粗螺纹规格(UNC)标准径2级牙钻孔径番数牙外径最大最小NO.1-64(1.)1...NO.2-56(2.)1...NO.3-48(2.)2...NO.4-40(2.)2...NO.5-40(3.)2...NO.6-32(3.)2...NO.8-32(4.)3..5.NO.10-24(4.)3..9.NO.12-24(5.)4.../4-..4./16-...4/8-.../16-..5./2-.8.10.5/16-2.2.44./8-1.2../4-6.6.86.7/8-..79.-.2.60.-1/8-.0..-1/4-.8.57.-3/8-.1.11.1-1/2-.0.23.1-3/4-.9..9-4-1/.5..英制螺纹规格钻孔径硬材软材W1/8-..60W5/32-..20W3/16-..70W1/4-..00W5/16-..50W3/8-..90W7/16-..30W1/2-0.7.50W9/16-2.3.00W5/8-1.7.50W3/4-6.7.50W7/8-..30W1-.2.00W1-1/8-.0.80W1-1/4-.3.00英制管螺纹规格标准径钻孔径最大最小PS1/16-...PS1/8-...PS1/4-.1..PS3/8-.5..PS1/2-.5..PS3/4-.0.23.PS1-0.0.40.PS1-1/4-8.9.18.PS1-1/2-..44.PS2-.6..英制管螺纹规格标准径有效牙部之长度(最小)中之母螺牙内径标准长度(最小)中之母螺牙内径使用绞刀时不用绞刀时PT1/16-..26..PT1/8-..28..PT1/4-.710.96.PT3/8-.2..44.PT1/2-.817.8.PT3/4-.0..3.Pt1-.0..45.PT1-1/4-7...PT1-1/2-.443..Pt2-....美制螺纹滚造径规格钻孔径NPTNPS使用绞刀时不用绞刀时1/16-.16../8-.../4-.7../8-.4.4./2-.../4-.6.3.-11-1/..9.-1/4-11-1/...11-1/2-11-1/...-11-1/...36英制螺纹滚造径规格滚造径W3/16-.08-4.05W1/4-.51-5.46W5/16-.01-6.95W3/8-.48-8.41W7/16-.92-9.85W1/2-1.31-11.24W9/16-2.89-12.82公制螺纹规格滚造径M3.0×0.52..60M3.0×0.62..53M3.5×0.63..03M4.0×0.73..45M4.0×0...41M4.5×0...92M5.0×0.84..38M5.0×0.94..31M6.0×1.05..25M7.0×1.06..25M8.0×1.07.28-7.23M8.0×1..12-7.07M9.0×1..12-8.07M10×1..10-9.04M10×1.58.97-8.91M11×1.59.97-9.91M12×1..92-10.87M12×1.0.79-10.73M14×2..63-12.56M16×2..63-14.56M18×2..31-16.23M20×2..31-18.23M22×2..31-20.23针车用螺纹规格(UNC)滚造径SM1/8.-2.SM1/8.-2.SM9/64.-3.SM11/64.-3.SM3/16.-4.SM3/.-4.SM7/32.-4.SM15/64.-4.SM1/.-5.SM1/4.-5.SM9/32.-6.SM11/32.-8.SM3/8.-8.SM7/16.-10.SM7/.-9.SM1/21.-11.SM9/162.-13.美制粗螺纹规格(UNC)滚造径NO.5-.70-2.67NO.6-.95-2.91NO.8-.60-3.57NO.10-.09-4.05NO.12-.75-4./4-.50-5./16-.98-6./8-.45-8./16-.89-9./2-.39-11./16-2.87-12.80美制细螺纹规格(UNF)滚造径NO.5-.73-2.70NO.6-.05-3.02NO.8-.66-3.63NO.10-.26-4.80NO.12-.84-4./4-.72-5./16-.20-7./8-.79-8./16-0.23-10./2-1.82-11.761.如果您喜欢，请分享给更多的人；
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