普通公制螺纹基本牙型及基本尺寸和公差

1、普通螺纹基本牙型及其基本尺寸(GB/T1921981、GB/T1931981、GB/T1961981) (mm) 公称直径D、d螺距P中径D2或d2小径D1或d1第一系列第二系列第三系列10.25*0.8380.7290.20.870.7381.10.25*0.9380.8290.20.970.8831.20.25*1.0380.9290.21.070.9831.40.3*1.2051.0750.21.271.1831.60.35*1.3731.2210.21.471.3831.80.35*1.5731.4210.21.671.58320.4*1.741.5670.251.8381.7292.

2、20.45*1.9081.7130.252.0381.9292.50.45*2.2082.0130.352.2732.12130.5*2.6752.4590.352.7732.6213.5-0.63.112.850.353.2733.12140.7*3.5453.2420.53.6753.4594.5(0.75)*4.0133.6880.54.1753.95950.8*4.484.1340.54.6754.4595.50.55.1754.95961*5.354.9170.755.5135.188-0.55.6755.45971*6.355.9170.756.5136.1888-0.56.675

3、6.4591.25*7.1886.64717.356.9170.757.5137.188-0.57.6757.4598.5(1.25)*8.1887.647918.357.9170.758.5138.188-0.58.6768.459101.5*9.0268.3761.259.1888.64719.358.9170.759.5139.188-0.59.6759.45911(1.5)*10.0269.376110.359.9170.7510.51311.188-0.510.67510.459121.75*10.86310.1061.511.02610.3761.2511.18810.647111

4、.3510.917-0.7511.51311.188-0.511.67511.459142*12.70111.8351.513.02612.3761.2513.18812.647113.3512.917-0.7513.51313.188-0.513.67513.459151.514.02613.376-114.3513.917162*14.70113.8351.515.02614.376115.3514.917-0.7515.51315.188-0.515.67515.4594171.516.02615.376-116.3515.917182.5*16.37615.294216.70115.8

5、352.517.02616.376117.3516.917-0.7517.51317.188-0.517.67517.459202.5*18.37617.294218.70117.8351.519.02618.376119.3518.917-0.7519.51319.188-0.519.67519.459222.5*20.37619.294220.70119.8351.521.02620.376121.3520.917-0.7521.51321.188-0.521.67521.459243*22.05120.752222.70121.8351.523.02622.376123.3522.917

6、-0.7523.51323.18825223.70122.8351.524.02623.376-124.3523.917261.525.02624.376273*25.05123.752225.70124.8351.526.02625.376126.3525.917-0.7526.51326.18828226.70125.8351.527.02626.376127.3526.917303.527.72726.211-328.05126.752228.70127.8351.529.02628.376129.3528.917-0.7529.51329.18832230.70129.8351.531

7、.02630.376333.530.72729.211-331.05129.752231.70130.8351.532.02631.376-132.3531.917-0.7532.51332.188351.534.02633.376364*33.40231.67334.05132.752234.70133.8351.535.02634.376-135.3534.917381.537.02636.376394*36.40234.67337.05135.752237.70136.8351.538.02637.376-138.3537.91740-338.05136.752-238.70137.83

8、51.539.02638.376424.5*39.07737.129-439.40237.67340.05138.752240.70139.8351.541.02640.376-141.3540.917454.5*42.07740.129-442.40240.67343.05141.752243.70142.8351.544.02643.376-144.3543.917485*44.75244.587-445.40243.67346.05144.752246.70145.8351.547.02646.376-147.3546.91750-348.05146.752-248.70147.8351

9、.549.02648.376525*48.75246.587-449.40247.67350.05148.752250.70146.8351.551.02650.376-151.3550.91755-452.40255.67-353.05151.752253.70152.835331.554.02653.376565.5*52.42850.046453.40251.67354.05152.752254.70153.8351.555.02654.376-155.3554.91758-455.40253.67-356.05154.752256.70155.8351.557.02656.37660(

10、5.5)*56.42854.046457.40255.67358.05156.752258.70157.8351.559.02658.376-159.3558.91762-459.40257.67-360.05158.752260.70156.8351.561.02660.376646*60.10357.505461.40259.67362.05160.752262.70161.8351.563.02662.376-163.3562.91765-462.40260.67-363.05161.752263.70162.8351.564.02663.376686*64.10361.505465.4

11、0263.67366.05164.752266.70165.8351.567.02666.376-167.3566.91770-666.10363.505-467.40265.67-368.05166.752268.70167.8351.569.02668.37672663.10365.505469.40267.67370.05168.752270.70169.8351.571.02670.376-171.3570.9175575-472.40270.67-373.05171.752273.70172.8351.574.02673.37676672.10369.505473.40271.673

12、74.05172.752274.70173.8351.575.02674.376-175.3574.91778276.70175.83580676.10373.505477.40275.67378.05176.752278.70177.8351.579.02678.376-179.3578.91782280.70179.83585681.10378.505482.40280.67383.05181.752283.70182.835-1.584.02683.37690686.10383.505487.40285.67388.05186.752288.70187.835-1.589.02688.3

13、7695691.10388.605492.40290.67393.05191.752293.70192.835-1.594.02693.376100696.10393.505497.40295.67398.05196.752298.70197.835-1.599.02698.3761056101.10398.5054102.402100.673103.051101.7522103.701102.835-1.5104.026103.3761106106.103103.5054107.402105.671103108.051106.7522108.701107.835-1.5109.026108.

14、3761156111.103108.5054112.402110.673113.051111.7522113.701112.835-1.5114.026113.3761206116.103113.5054117.402115.673118.051116.7522118.701117.835-1.5119.026118.3761256121.103118.5054122.402120.673123.051121.7522123.701122.835-1.5124.026123.3761306126.103123.5054127.402125.673128.051126.7522128.70112

15、7.835-1.5129.026128.3761356113.103128.5054132.402130.673133.051131.7522133.701132.835-1.5134.026133.3761406136.103133.5054137.402135.673138.051136.7522138.701137.835-1.5138.026138.3761456141.103138.5054142.402140.673143.051141.7522143.701142.835-1.5144.026143.3761506146.103143.5054147.402145.673148.

16、051146.7521502148.701147.835-1.5149.026143.3761556151.103148.5054152.402150.672153.051151.7522153.701152.8351606156.103153.5054157.402155.673158.051156.752-2158.701154.8351656161.103158.5054162.402160.672163.051161.7522163.701162.8351706166.103163.5054167.402165.673168.051166.752-2168.701167.8351756

17、171.103168.5054172.402170.672173.051171.7522173.701172.8351806176.103173.5054177.702175.673178.051176.752-2178.701177.8351856181.103178.5054182.402180.672183.051181.7522183.701182.8351906186.103183.5054187.402185.673188.051186.752-2188.701187.8351956191.103188.5054192.402190.672193.051191.7522193.70

18、1192.8352006196.103193.5054197.402190.673198.051196.752-2198.701197.8352056201.103198.5054202.402200.673203.051201.7522106206.103203.5054207.402205.673208.051206.7522156211.103208.5054212.402210.673213.051211.7522206216.103213.5054217.402215.673218.051216.7522256221.103218.5054222.402220.673223.0512

19、21.7522306226.103223.5054227.402225.6732 280.51226.7522356231.103228.5054232.402230.673233.051231.7522406236.103233.5054237.402235.673238.051236.7522456241.103238.5054242.402240.673243.051241.7522506246.103243.5054247.402245.673248.051246.7522556251.103248.5054252.402250.67-3253.051251.7522606256.10

20、3253.5054257.402255.67-3258.051256.7522656261.103258.5054262.402260.67-3263.051261.7522706286.103263.5054267.402265.67-3268.051266.7522756271.103268.5054272.402270.67-3273.051271.7522808274.804271.346276.103273.5054277.402275.67-3278.051276.7522856281.103278.5054282.402280.67-3283.051281.7522908284.

21、804281.346286.103283.5054287.402285.67-3288.051286.7522956291.103288.5054292.402290.67-3293.051291.7523008294.804291.346296.103293.5054297.402295.67-3298.103296.7523106306.103303.5052304307.402305.673206316.103313.5054317.402315.673306326.103323.5054327.402325.673406336.103333.5054337.402335.6735063

22、46.103343.5054347.402345.673606356.103353.5054357.402355.673706366.103363.5054367.402365.673806376.103373.5054377.402375.673906386.103383.5054387.402385.674006396.103393.5054397.402395.674106406.103403.5054206416.103413.5054306426.103423.5054406436.103433.5054506446.103443.5054606456.103453.50547064

23、66.103463.5054806476.103473.5054906486.103483.5055006496.103493.5055106506.103503.5055206516.103513.5055306526.103523.5055406536.103533.5055506546.103543.5055606556.103553.5055706566.103563.5055806576.103573.5055906586.103583.5056006596.103593.505注: 1.优先选用第一系列,第三系列尽可能不用。2.括号内的尺寸尽可能不用。带“*”的螺距为粗牙参数,其余

24、为细牙螺纹。3.M141.25仅用于火花塞, M351.5仅用于滚动轴承锁紧螺母。4.对直径150600mm的螺纹,需要使用螺距大于6mm的螺纹,应优先选用8mm的螺距。310普通螺纹的极限偏差(GB/T2516-2003)(um) 本本标标准准依依据据GB/T197-2003GB/T197-2003的的基基本本偏偏差差和和公公差差，规规定定了了普普通通螺螺纹纹( (一一般般用用途途米米制制螺螺纹纹) )中中径径和和顶顶径径的的极极限限偏偏差差。普普通通螺螺纹纹的的基基本本牙牙型型和和直直径径与与螺螺距距系系列列分分别别符符合合GB/T192-2003GB/T192-2003和和GB/T193

25、-2003GB/T193-2003的的规规定定。 本本标标准准适适用用于于一一般般用用途途的的机机械械紧紧固固螺螺纹纹联联接接，其其螺螺纹纹本本身身不不具具有有密密封封功功能能。基本大径mm螺距mm内螺纹外螺纹公差带中 径小 径公差带中 径ESEIESEIesei0.991.40.23h4h0-244H4003804h0-305G5g6g-17-555H5h4h0-385h6h0-386e6f6G6g-17-656H6h0-487e6e7G7g6g7H7h6h8G8g8H9g8g0.253h4h0-264H4504504h0-345G741874185g6g-18-605H5605605h4h

26、0-425h6h0-426e6f6G6g-18-716H6h0-537e6e7G7g6g7H7h6h8G8g8H9g8g0.33h4h0-284H4805304h0-365G781885185g6g-18-635H6006705h4h0-455h6h0-456e6f6G9318103186g-18-746H7508506h0-567e6e7G7g6g7H7h6h8G8g8H9g8g1.42.80.23h4h0-254H4203804h0-325G5g6g-17-575H5h4h0-405h6h0-406e6f-32-826G6g-17-676H6h007e6e7G7g6g7H7h6h8G8g8

27、H9g8g0.253h4h0-284H4804504h0-365G781874185g6g-18-635H6005605h4h0-455h6h0-456e6f-33-896G6g-18-746H6h0-567e6e7G7g6g7H7h6h8G8g8H9g8g0.353h4h0-324H5306304h0-405G861999195g6g-19-695H6708005h4h0-505h6h0-506e6f-34-976G10419119196g-19-826H85010006h0-630.991.40.37e6e7G7g6g-19-997H7h6h0-808G8g8H9g8g0.43h4h0-3

28、44H5607104h0-425G9019109195g6g-19-725H7109005h4h0-535h6h0-536e6f-34-1016G10919131196g-19-866H90011206h0-677e6e7G7g6g-19-1047H7h6h0-858G8g8H9g8g0.453h4h0-364H6008004h0-455G9520120205g6g-20-765H75010005h4h0-565h6h0-566e6f-35-1066G11520145206g-20-916H95012506h0-717e6e7G7g6g-20-1107H7h6h0-908G8g8H9g8g2.

29、85.60.353h4h0-344H5606304h0-425G901999195g6g-19-725H7108005h4h0-535h6h0-536e6f-34-1016G10919119196g-19-866H90010006h0-677e6e7G7g6g-19-1047H7h6h0-851.42.80.358G8g8H9g8g0.53h4h0-384H6309004h0-485G10020132205g6g-20-805H80011205h4h0-605h6h0-606e-50-1256f-36-1116G12020160206g-20-956H100014006h0-757e6e-50

30、-14576g-20-1157H125018007h6h0-958G8g8H9g8g0.63h4h0-424H71010004h0-535G11121146215g6g-21-885H90012505h4h0-675h6h0-676e-53-1386f-36-1216-21-1066H112016006h0-857e6e-53-1597G16121221217g6g-21-1277H140020007h6h0-1068G8g8H9g8g0.73h4h0-454H75011204h0-565G11722162225g6g-22-935H9501

31、4005h4h0-715h6h0-716e-56-1466f-38-1286-22-1126H118018006h0-907e6e-56-16876g-22-1347H150022407h6h0-1128G8g8H9g8g0.753h4h0-452.85.60.354H75011804h0-565G11722172225g6g-22-935H95015005h4h0-715h6h0-716e-56-1466f-38-1286-22-1126H118019006h0-907e6e-56-1687/p>

32、g6g-22-1347H150023607h6h0-1128G8g8H9g8g0.83h4h0-484H80012504h0-605G12424184245g6g-24-995H100016005h4h0-755h6h0-756e-60-1556f-38-1336-24-1196H125020006h0-957e6e-60-17876g-24-1427H160025007h6h0-1188G22424339248g-24-1748H200031509g8g-24-2145.611.20.753h4h0-504H85011804h0-635G1

33、2822172225g6g-22-1025H106015005h4h0-805h6h0-806e-56-1566f-38-1386-22-1226H132019006h0-1007e6e-56-1817G19222258227g6g-22-1477H170023607h6h0-1258G8g8H9g8g13h4h0-564H95015004h0-7156g-26-1162.85.60.755H118019005h4h0-905h6h0-906e-60-1726f-40-1526-26-1386H150023606h0

34、-1127e6e-60-2007G21626326267g6g-26-1667H190030007h6h0-1408G26226401268g-26-2068H236037509g8g-26-2501.253h4h0-604H100017004h0-7556g-28-1235H125021205h4h0-955h6h0-956e-63-1816f-42-1606-28-1466H160026506h0-1187e6e-63-2137G22828363287g6g-28-1787H200033507h6h0-1508G27828453288g-

35、28-2188H250042509g8g-28-2641.53h4h0-674H112019004h0-8556g-32-1385H140023605h4h0-1065h6h0-1066e-67-1996f-45-1776G21232332326g-32-1646H180030006h0-1327e6e-67-2377G25632407327g6g-32-2027H224037507h6h0-1708G31232507328g-32-2448H280047509g8g-32-29711.2 22.413h4h0-604H100015004h0-755G15126216

36、265g6g-26-1215H125019005h4h0-955h6h0-955.611.216e-60-1786f-40-1586-26-1446H160023606h0-1187e6e-60-2107G22626326267g6g-26-1767H200030007h6h0-1508G27626401268g-26-2168H250037509g8g-26-2621.253h4h0-674H112017004h0-855G16828240285g6g-28-1345H140021205h4h0-1065h6h0-1066e-63-1956f-42-1746G208

37、28293286g-28-1606H180026506h0-1327e6e-63-2337G25228363287g6g-28-1987H224033507h6h0-1708G30828453288g-28-2408H280042509g8g-28-2931.53h4h0-714H118019004h0-9056g-32-1445H150023605h4h0-1125h6h0-1126e-67-2076f-45-1856G22232332326g-32-1726H190030006h0-1407e6e-67-2477G26832407327g6g-32-2127H23

38、6037507h6h0-1808G33232507328g-32-2568H300047509g8g-32-3121.753h4h0-754H125021204h0-955G19434299345g6g-34-1525H160026505h4h0-1185h6h0-1186e-71-2216f-48-1986G23434369346g-34-1846H200033506h0-15011.2 22.417e6e-71-2617G28434459347g6g-34-2247H250042507h6h0-1908G34934564348g-34-2708H315053009g8g-34-33423h

39、4h0-804H132023604h0-1005G20838338385g6g-38-1635H170030005h4h0-1255h6h0-1256e-71-2316f-52-2126G25038413386g-38-1986H212037506h0-1607e6e-71-2717G30338513387g6g-38-2387H265047507h6h0-2008G37338638388g-38-2888H335060009g8g-38-3532.53h4h0-854H140028004h0-1065G22242397425g6g-42-1745H180035505h4h0-1325h6h0

40、-1326e-80-2506f-58-2286G26642492426g-42-2126H224045006h0-1707e6e-80-2927G32242602427g6g-42-2547H280056007h6h0-2128G39742752428g-42-3078H355071009g8g-42-37722.54513h4h0-634H106015004h0-8056g-26-1265H132019005h4h0-1005h6h0-1006e-60-1856f-40-1656G19626262266g-26-1516H170023606h0-1257e6e-60

41、-2207G23826326267g6g-26-1867H212030007h6h0-16011.2 22.41.758G8g-26-2268H9g8g-26-2761.53h4h0-754H125019004h0-955G19232268325g6g-32-1505H160023605h4h0-1185h6h0-1186e-67-2176f-45-1956G23232332326g-32-1826H200030006h0-1507e6e-67-2577G28232407327g6g-32-2227H250037507h6h0-1908G34732507328g-32-2688H3150475

42、09g8g-32-33223h4h0-854H140023604h0-1065G21838338385g6g-38-1705H180030005h4h0-1325h6h0-1326e-71-2416f-52-2226G26238413386g-38-2086H224037506h0-1707e6e-71-2837G31838513387g6g-38-2507H280047507h6h0-2128G39338638388g-38-3078H355060009g8g-38-37333h4h0-1004H170031504h0-1255G26048448485g6g-48-2085H21204000

43、5h4h0-1605h6h0-1606e-85-2856f-63-2636G31348548486g-48-2486H265050006h0-2007e6e-85-3357G38348678487g6g-48-2987H335063007h6h0-2508G47348848488g-48-3638H425080009g8g-48-4483.53h4h0-1064H180035504h0-1325G27753503535g6g-53-22322.54515H224045005h4h0-1705h6h0-1706e-90-3026f-70-2826G33353613536g-53-2656H280

44、056006h0-2127e6e-90-3557G40853763537g6g-53-3187H355071007h6h0-2658G50353953538g-53-3888H450090009g8g-53-47843h4h0-1124H190037504h0-1405G29660535605g6g-60-2405H236047505h4h0-1805h6h0-1806e-95-3196f-75-2996G36060660606g-60-2846H300060006h0-2247e6e-95-3757G43560810607g6g-60-3407H375075007h6h0-2808G5356

45、01010608g-60-4158H475095009g8g-60-5104.53h4h0-1184H200042504h0-1505G31363593635g6g-63-2535H250053005h4h0-1905h6h0-1906e-100-3366f-80-3166G37863733636g-63-2996H315067006h0-2367e6e-100-4007G46363913637g6g-63-3637H400085007h6h0-3008G563631123638g-63-4388H5000106009g8g-63-53845901.53h4h0-804H132019004h0

46、-1005G20232268325g6g-32-1575H170023605h4h0-1255h6h0-1256e-67-22722.5453.56f-45-2056G24432332326g-32-1926H212030006h0-1607e6e-67-2677G29732407327g6g-32-2327H265037507h6h0-2008G36732507328g-32-2828H335047509g8g-32-34723h4h0-904H150023604h0-1125G22838338385g6g-38-1785H190030005h4h0-1405h6h0-1406e-71-25

47、16f-52-2326G27438413386g-38-2186H236037506h0-1807e6e-71-2957G33838513387g6g-38-2627H300047507h6h0-2248G41338638388g-38-3188H375060009g8g-38-39333h4h0-1064H180031504h0-1325G27248448485g6g-48-2185H224040005h4h0-1705h6h0-1706e-85-2976f-63-2756G32848548486g-48-2606H280050006h0-2127e6e-85-3507G4034867848

48、7g6g-48-3137H355063007h6h0-2658G49848848488g-48-3838H450080009g8g-48-47343h4h0-1184H200037504h0-1505G31060535605g6g-60-2505H250047505h4h0-1905h6h0-1906e-95-3316f-75-3116G37560660606g-60-29645901.56H315060006h0-2367e6e-95-3957G46060810607g6g-60-3607H400075007h6h0-3008G560601010608g-60-4358H500095009g

49、8g-60-53553h4h0-1254H212045004h0-1605G33671631715g6g-71-2715H265056005h4h0-2005h6h0-2006e-106-3566f-85-3356G40671781716g-71-3216H335071006h0-2507e6e-106-4217G49671971717g6g-71-3867H425090007h6h0-3158G601711191718g-71-4718H5300112009g8g-71-5715.53h4h0-1324H224047504h0-1705G35575675755g6g-75-2875H2800

50、60005h4h0-2125h6h0-2126e-112-3776f-90-3556G43075825756g-75-3406H355075006h0-2657e6e-112-4477G525751025757g6g-75-4107H450095007h6h0-3358G635751255758g-75-5008H5600118009g8g-75-60563h4h0-1404H26050004h0-1805G38080710805g6g-80-3045H300063005h4h0-2245h6h0-2246e-118-3986f-95-3756G45580880806g-80-3606H375

51、080006h0-2807e6e-118-473459047G55801080807g6g-80-4357H4750100007h6h0-3558G680801330808g-80-5308H6000125009g8g-80-6409018023h4h0-954H160023604h0-1185G23838338385g6g-38-1885H200030005h4h0-1505h6h0-1506e-71-2616f-52-2426G28838413386g-38-2286H250037506h0-1907e6e-71-3077G35338513387g6g-38-2747H315047507h

52、6h0-2368G43838638388g-38-3388H400060009g8g-38-41333h4h0-1124H190031504h0-1405G28448448485g6g-48-2285H236040005h4h0-1805h6h0-1806e-85-3096f-63-2876G34848548486g-48-2726H300050006h0-2247e6e-85-3657G42348678487g6g-48-3287H375063007h6h0-2808G52348848488g-48-4038H475080009g8g-48-49843h4h0-1254H212037504h

53、0-1605G32560535605g6g-60-2605H265047505h4h0-2005h6h0-2006e-95-3456f-75-3256G39560660606g-60-3106H335060006h0-2507e6e-95-4107G48560810607g6g-60-3757H425075007h6h0-315459068G590601010608g-60-4608H530095009g8g-60-56063h4h0-1504H250050004h0-1905G39580710805g6g-80-3165H315063005h4h0-2365h6h0-2366e-118-41

54、86f-95-3956G48080880806g-80-3806H400080006h0-3007e6e-118-4937G580801080807g6g-80-4557H5000100007h6h0-3758G710801330808g-80-5558H6300125009g8g-80-6808*3h4h0-1704H280063004h0-2125G3801009001005g6g-100-3655H355080005h4h0-2655h6h0-2656e-140-4756f-118-4536G55010011001006g-100-4356H4500100006h0-3357e6e-14

55、0-5657G66010013501007g6g-100-5257H5600125007h6h0-4258G71010017001008g-100-6308H7100160009g8g-100-77018035533h4h0-1254H212031504h0-1605G31348448485g6g-48-2485H265040005h4h0-2005h6h0-2006e-85-3356f-63-3136G38348548486g-48-2986H335050006h0-2507e6e-85-4007G47348678487g6g-48-3637H425063007h6h0-3158G57848

56、848488g-48-4488H530080009g8g-48-54890180443h4h0-1404H236037504h0-1805G36060535605g6g-60-2845H300047505h4h0-2245h6h0-2246e-95-3756f-75-3556G43560660606g-60-3406H375060006h0-2807e6e-95-4507G53560810607g6g-60-4157H475075007h6h0-3558G660601010608g-60-5108H600095009g8g-60-62063h4h0-1604H265050004h0-2005G

57、41580710805g6g-80-3305H335063005h4h0-2505h6h0-2506e-118-4336f-95-4106G50580880806g-80-3956H425080006h0-3157e6e-118-5187G610801080807g6g-80-4807H5300100007h6h0-4008G750801330808g-80-5808H6700125009g8g-80-7108*3h4h0-1804H300063004h0-2245G4751009001005g6g-100-3805H375080005h4h0-2805h6h0-2806e-140-4956f

58、-118-4736G57510011001006g-100-4556H4750100006h0-3557e6e-140-5907G70010013501007g6g-100-5507H6000125007h6h0-4508G85010017001008g-100-6608H7500160009g8g-100-810注:ES和es分别为内外螺纹的上偏差代号;EI和ei分别为外螺纹的下偏差代号。180355*8mm螺距仅用于基本大径大于和等于125mm的螺纹。大 径小径esei用于计算应力的偏差0-36-290-36-29-17-73-460-36-290-56-29-17-73-460-56-2

59、90-42-360-42-36-18-85-540-42-360-67-36-18-85-540-67-360-48-430-48-43-18-93-610-48-430-75-43普通螺纹的极限偏差(GB/T2516-2003)(um) 本本标标准准依依据据GB/T197-2003GB/T197-2003的的基基本本偏偏差差和和公公差差，规规定定了了普普通通螺螺纹纹( (一一般般用用途途米米制制螺螺纹纹) )中中径径和和顶顶径径的的极极限限偏偏差差。普普通通螺螺纹纹的的基基本本牙牙型型和和直直径径与与螺螺距距系系列列分分别别符符合合GB/T192-2003GB/T192-2003和和GB/T

60、193-2003GB/T193-2003的的规规定定。 本本标标准准适适用用于于一一般般用用途途的的机机械械紧紧固固螺螺纹纹联联接接，其其螺螺纹纹本本身身不不具具有有密密封封功功能能。外螺纹-18-93-610-75-430-36-290-36-29-17-73-460-36-290-56-29-32-88-61-17-73460-56-290-42-360-42-36-18-85-540-42-360-67-36-33-100-69-18-85-540-67-360-53-510-53-51-19-104700-53-510-85-51-34-119-85-19-104-700-85-51-