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公制螺纹基本直径内螺纹公差级别外螺纹公差大径中径小径6H7H6中径公差小径公差中径公,差小径公差中径公差小径公差M1010.358.91,0.1500,0.26,+0.190,+000026,-0.138-0.26,0.20M1*11211.3510.970,+0.600,+0.2360,+0.2000,0300-0.06,0.14-.26,006411413.3122.9170,+0.1600,236,+0.200,+.30-00,04006,0.0M12*1.1211.181.47,+180,2650,0.240,+.3-0.28,-0.1600.028,-.201*1.21413.1812.6470,+000,+02650,+0240,+0.33-0.28,-0.16-0.0,.240M*1.521120.60,0.1900,+.3,+0.260,+03750.2,0.172-02,.8M4*1.113.0261.37,.1900,0.3000,+0.60,+.375-0.32,-170.03,-0.266*1.5161506170,+.190,.300,+0230,+0.375-.2,-.172-002,-02M18*1.51817.02616.360,+.00,+0.30,+2360,+75.032,-0.720.03,-0268M20*150190261.37,+0.1900,+0.300,+.360,+375-0.03,0.17-0.32,0.2M2*152221020.6,+0.190,+0.300,+.2360,.30.032,0.1720.,-028M24*1.51423.022.370,+0.2000,+00,+0.500,0.0032,-.8-032,-028M26*1.52625.02643760,+0.2000,+000,+0250,+.375-0.02,-0.182-0.3,0.268M27.522626560,+0.200,+0300,+0.2500,+0.37-0032,-0.182-0.3,-0.268M30*1.5029.0236,+.20,+0.00,0.25,0.375-002,-0.1820.2,.2683*1.5332.26.70,+0.2000,+0.3000,+0.500,75-002,-0182-02,-.268M36*1.3635.2634.76,+0.200,+0300,+0250,+035-0.32,-0.182-0.3,-0.2M39*.38.0233760,0.2000,+0.00,0.250,0.75-0.032,-02-0.2,-0242*.4241.0640.3760,+0.200,+03000,+0.50,+0.375-0.3,-0182-0.032,-.827*2725.7012.3,+.2,0.370,+.2800,+0.47-0.038,.208-038,038M30*3028.7027.8350,+0.240,0.3750,+.2800,+0.475-0.8,-0.20-0.08,-0.38M3*2317030.850,+0.240,+0350,+0.280,+0.4-0.38,-.20-0.0,-0.3186*2363.7013.3,+.220,+.750,.2800,+0.47-003,0.208038,0.318M3*2393.016.0,0.224,+0.70,0800,+.475.038,0.08-008,0.31842*2427198350,+.240,+0.375,+0.20,+0.75-0.03,0.08-0.038,-0.31M45*4543.701428350,0.220,+0.3750,+2800,+0.75-0.038,0.20-0.8,.318M52*5257019.350,+020,+0.370,+0.3000,+40.08,021-0.038,-0.318M60*268701.835,+0.2360,+0.3750,03000,+0475-0.38,-218-0.038,-.31M6*26462161.8350,+0.0,+.370,+.0,+.45008,-0.28-.38,-0.31M2*27270.70169.830,+0.20,0.3750,+.3000,+0.75008,1-.08,0318美制NP螺纹(美国原则AI B1.20.1机械连接用直管螺纹0度)标号螺纹代号外螺纹(2A级)内螺纹(2B级)大径中径小径中径最大值最小值最大值最小值最小值最大值最小值最大值21/8-27NPSM10084.96.42979.09.246.49.6091/4-8NPSM13.36013.32.4541.3211872.1.487233/8-18NPSM .51658615.8901.7761115541592616.0781/-14NPS20.90420.6509.390418.9741.7919.194123/4-14NSM26.2646.0025.07724.932.3332325.1125.23161-15NPSM2.8232.3731.473.2730.50530753.631.651.1/41.5NPSM41601.30040.1340.0039.2639.49414046241.1/2-5NS7.67647.37146.414.086533945.5686.26822-1.NPSM5.7155.4158.27858.1257.3795.605.2658.53202.128NPSM7.6171.7070.104.66878967.1604098PM8.067.6816.0085.8684.848516686.0686.319NPT布锥管螺纹标号螺纹代号 基面上的直径螺纹长度端面大径大径中径小径管端至基面长有效长度02Z1/8*710.2429.48873126.7039.984Z/4*1813.1612.48711.5.76102061.25406/81.055592614.7976.9613586.6408Z1/2*21.22197183218.2813.520.112Z/14565.172.668.11381.301Z111.533.2283146.640.16432.592Z1.1/4*41.540.2183.510.6681793.318Z.1/2*.548.5446.2874.50106618.37747.38732Z2*1.560.925.32556558.07.2159.40Z2.1*72.6990.197.61917.323889271.61648Z3*88.088.688.521945630.48087.25度英锥管螺纹标号螺纹代号基本直径内螺纹外螺纹大径中径小径中径公差小径公差公差级别AB中径公差大径公差中径公差大径公差02G18*289728.147560.170,00.282,0,-.70,-0.210,
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