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UNC, UNF, & UNEF Thread ANSI B1,1.pdf

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MARYLAND METRICS THREAD DATA CHARTS UNC, UNF, & UNEF Thread ANSI B1.1 Click here to return to the thread data chart page index. UNC Thread ANSI B1.1 UNC - Unified Coarse Thread. The old definition NC - National Coarse is comparable with the metric thread. The new term UNC is comparable with the ISO metric thread. NC and UNC threads are interchangeable, in an similar manner to the metric and the ISO metric thread. Nominal Diameter 1 - 64 UNC 2 - 56 UNC 3 - 48 UNC 4 - 40 UNC 5 - 40 UNC 6 - 32 UN
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  MARYLAND METRICS THREAD DATA CHARTS UNC, UNF, & UNEF Thread ANSI B1.1 Click here to return to the thread data chart page index.  UNC Thread ANSI B1.1 UNC - Unified Coarse Thread. The old definition NC - National Coarse is comparable with the metric thread. The new term UNC is comparable with the ISO metric thread. NC and UNC threads are interchangeable, in an similar manner to the metric and the ISO metric thread. NominalMajorMajorTappingTPIPitchDiameterDiameterDiameterDrill Sizemm Inchmmmm 1 - 64 UNC0,0731,8541,50640,3972 - 56 UNC0,0862,1841,80560,4533 - 48 UNC0,0992,5152,10480,5294 - 40 UNC0,1122,8452,35400,6355 - 40 UNC0,1253,1752,65400,6356 - 32 UNC0,1383,5052,85320,7948 - 32 UNC0,1644,1663,50320,79410 - 24 UNC0,1904,8264,00241,05812 - 24 UNC0,2165,4864,65241,0581/4 - 20 UNC0,2506,3505,35201,2705/16 - 18 UNC0,3137,9386,80181,4113/8 - 16 UNC0,3759,5258,25161,5877/16 - 14 UNC0,43811,1129,65141,8141/2 - 13 UNC0,50012,70011,15131,9549/16 - 12 UNC0,56314,28812,60122,1175/8 - 11 UNC0,62515,87514,05112,3093/4 - 10 UNC0,75019,05017,00102,5407/8 - 9 UNC0,87522,22520,0092,8221 - 8 UNC1,00025,40022,8583,1751 1/8 - 7 UNC1,12528,57525,6573,628  Click here to return to the thread data chart page index.  1 1/4 - 7 UNC1,25031,75028,8573,6281 3/8 - 6 UNC1,37543,92531,5564,2331 1/2 - 6 UNC1,50038,10034,7064,2331 3/4 - 5 UNC1,75044,45040,4055,0802 - 4 1/2 UNC2,00050,80046,304,55,6442 1/4 - 4 1/2 UNC2,25057,15052,654,55,6442 1/2 - 4 UNC2,50063,50058,5046,3502 3/4 - 4 UNC2,75069,85064,7546,3503 - 4 UNC3,00063,50071,1046,3503 1/4 - 4 UNC3,25082,55077,4546,3503 1/2 - 4 UNC3,50088,90083,8046,3503 3/4 - 4 UNC3,75095,25090,1546,3504 - 4 UNC4,000101,60096,5046,350UNC Thread UNF Thread ANSI B1.1 UNF - Unified National Fine Thread. Similar to UNC. UNC and UNF threads are the choices for the customary Unified screws and nuts. Nominal Diameter Major Diameter InchMajor Diameter mmTapping Drill Size mmTPIPitch mm0 - 80 UNF0,0601,5241,25800,3171 - 72 UNF0,0731,8541,55720,3532 - 64 UNF0,0682,1841,90640,3973 - 56 UNF0,0992,5152,15560,4534 - 48 UNF0,1122,8452,40480,5295 - 44 UNF0,1253,1752,70440,5776 - 40 UNF0,1383,5052,95400,6358 - 36 UNF0,1644,1663,50360,70510 - 32 UNF0,1904,8264,10320,79412 - 28 UNF0,2165,4864,70280,9071/4 - 28 UNF0,2506,3505,50280,9075/16 - 24 UNF0,3137,9386,90241,0583/8 - 24 UNF0,3759,5258,50241,0587/16 - 20 UNF0,43811,1129,90201,2701/2 - 20 UNF0,50012,70011,50201,2709/16 - 18 UNF0,56314,28812,90181,4115/8 - 18 UNF0,62515,87514,50181,4113/4 - 16 UNF0,75019,05017,50161,5877/8 - 14 UNF0,87522,22520,40141,814  Click here to return to the thread data chart page index. Click here to return to the thread data chart page index.  Phones: (800) 638-1830 or (410) 358-3130 are available Monday-Friday 8:30 AM to 5:30 PM Eastern time. Faxes: (800) 872-9329 or (410) 358-3142 & E-mail are available anytime. Warehouse & showroom hours are Monday-Friday 10 AM to 5:30 PM. 1 - 12 UNF1,00025,40023,25122,1171 1/8 - 12 UNF1,12528,57526,50122,1171 1/4 - 12 UNF1,25031,75029,50122,1171 3/8 - 12 UNF1,37543,92532,75122,1171 1/2 - 12 UNF1,50038,10036,00122,117UNF Thread UNEF Thread ANSI B1.1UNEF - Unified Extra Fine Thread, which is used for special purposes. Nominal Diameter Major Diameter InchMajor Diameter mmTapping Drill Size mmTPIPitch mm 12 - 80 UNEF 0,2165,4864,80320,794 1/4 - 32 UNEF 0,2506,3505,70320,794 5/16 - 32 UNEF 0,3137,9387,25320,794 3/8 - 32 UNEF 0,3759,5258,85320,794 7/16 - 28 UNEF 0,43811,11210,35280,907 1/2 - 28 UNEF 0,50012,70011,80280,907 9/16 - 24 UNEF 0,56314,28813,40241,058 5/8 - 24 UNEF 0,62515,87515,00241,058 11/16 - 24 UNEF 0,68817,46216,60241,058 3/4 - 20 UNEF 0,75019,05018,00201,270 13/16 - 20 UNEF 0,81320,63819,60201,270 7/8 - 20 UNEF 0,87522,22521,15201,270 15/16 - 20 UNEF 0,93823,81222,70201,270 1 - 20 UNEF 1,00025,40024,30201,270 1 1/16 - 18 UNEF 1,06326,98825,80181,411 1 1/8 - 18 UNEF 1,12528,57527,35181,411 1 1/4 - 18 UNEF 1,25031,75030,55181,411 1 5/16 - 18 UNEF 1,31333,33832,10181,411 1 3/8 - 18 UNEF 1,37534,92533,70181,411 1 7/16 - 18 UNEF 1,43836,51235,30181,411 1 1/2 - 18 UNEF 1,50038,10036,90181,411 1 9/16 - 18 UNEF 1,56339,68838,55181,411 1 5/8 - 18 UNEF 1,62541,27540,10181,411 1 11/16 - 18 UNEF 1,68842,86241,60181,411UNEF Thread  [ To: Maryland Metrics home page ] [ To: Maryland Metrics Product Guide ] [ e-mail to Maryland Metrics ]  Please note that all Trademarks and Tradenames are the property of their respective owners. copyright 1998, 2000, 2006 maryland metrics --all rights reserved --ver bb14h thddat9.htm

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