Threading Tables-Whitworth, BSF, Etc - Gerard's Garage
Threading TablesC:\British Cars\Tech Papers\Thread Sizes\Threading Tables.docSource: hart No 1 - Whitworth ThreadsWhitworth Form Threads (55 Deg Thread Angle)Dimensions in Inches except where statedThread Form DataDiameter ping DrillClearance DrillDec / Met / FracDec / Met / 04 - 2.55mm0.1299 - .1457 - 3.70mm0.1968 - 2008 - 5.10mm0.2559 - .2559 - 6.50mm0.3150 - 3125 - 5/16"0.3858 - .3642 - 9.25mm0.4531 - 4134 - 10.50mm0.5156 - .4764 - 12.10mm0.5781 - 5315 - 13.50mm0.6406 - 6406 - 41/64"0.7656 - 579 - 19.25mm0.8906 - 1 - 22.00mm1.0156 - 0.9744 - 24.75mm1.1405 - 1.0938 - 1-3/32"1.2656 - 61.3189 - 33.50mm1.5156 - 51.5354 - 39.00mm1.8906 - .7520 - 44.50mm2.0156 - 2-1/64"1
Chart No 2 - British Standard Fine (BSF) ThreadsBritish Standard Fine Threads (55 Deg Thread Angle)Dimensions in Inches except where statedThread Form DataDiameter O/DiameterCorePitchDepth RadiusTapping DrillClearance DrillEffectiveDiaT.P.IDec / Met / FracDec / Met / Frac3/16"0.18750.14750.0312 0.02000.00460.1675320.1562 - 5/32"0.1929 - 4.90mm7/32"0.21880.17300.0357 0.02290.00490.1958280.1831 - 4.65mm0.2205 - 5.60mm1/4"0.25000.20080.0385 0.02460.00530.2254260.2087 - 5.30mm0.2559 - 6.50mm5/16"0.31250.25430.0454 0.02910.00620.2834220.2657 - 6.75mm0.3150 - 8.00mm3/8"0.37500.31100.0500 0.03200.00690.3430200.3248 - 8.25mm0.3858 - 9.80mm7/16"0.43750.36630.0555 0.03560.00760.4019180.3819 - 9.70mm0.4531 - 29/64"1/2"0.50000.42000.0625 0.04000.00860.4600160.4375 - 7/16"0.5156 - 35/64"9/16"0.56250.48250.0625 0.04000.00860.5225160.5000 - 1/2"0.5781 - 37/64"5/8"0.62500.53360.0714 0.04570.00980.5793140.5512 - 14.00mm0.6406 - 41/64"3/4"0.75000.64320.0833 0.05340.01140.6966120.6594 - 16.75mm0.7656 - 49/64"7/8"0.87500.75860.0909 0.05820.01250.8168110.7812 - 25/32"0.8906 - 57/64"1"1.00000.87200.1000 0.06400.01370.9360100.8957 - 22.75mm1.0156 - 1-1/64"1-1/8"1.12500.98280.1111 0.07110.01531.053991.0039 - 25.50mm1.1406 - 1-9/64"1-1/4"1.25001.10780.1111 0.07110.01531.178991.1319 - 28.751.2656 - 1-17/64"1-3/8"1.37501.21500.1250 0.08000.01721.295081.2402 - 31.501.3906 - 1-25/64"1-1/2"1.50001.34000.1250 0.08000.01721.420081.3594 - 1-23/64"1.5156 - 1-33/64"1-5/8"1.62501.46490.1250 429 0.09150.01961.658571-19/32"--2"2.00001.81700.1429 66 6 6 0.10670.02292.643362-9/16"--3"3.00002.74390.2000 0.12800.02752.871952-3/4"--2
Chart No 3- British Association (BA) ThreadsBritish Association ThreadsDimensions in Inches except where statedThread Form DataTapping DrillClearance DrillSize O/DiameterCorePitchDepthRadiusEffectiveDiaT.P.IDec / Met / FracDec / Met / Frac0BA0.23620.18900.03940.02360.0072--25.380.2008 - 5.10mm0.2362 - 72 - 4.50mm0.2126 - 75 - 4.00mm0.1890 - 58 - 3.45mm0.1645 - 81 - 3.00mm0.1457 - 43 - 2.65mm0.1299 - 06 - 2.30mm0.1122 - 07 - 2.05mm0.1004 - 09 - 1.80mm0.0886 - 10 - 1.55mm0.0768 - 551 - 1.40mm0.0709 - 472 - 1.20mm0.0591 - 413 - 1.05mm0.0512 - 1.30mmChart No 4 - British Standard Pipe ThreadsBSP ThreadsDimensions in Inches except where statedThread Form DataDiameter O/DiameterTapping DrillClearance DrillCorePitchDepthRadiusEffectiveDiaT.P.IDec / Met / FracDec / Met / 45 - 8.75mm0.3858 - 4646 - 11.80mm0.5312 - 6004 - 15.25mm0.6719 - 7500 - 3/4"0.8281 - 8281 - 53/64"0.9062 - 9646 - 24.50mm1.0469 - .1122 - 28.25mm1.2031 - 2106 - 30.75mm1.3125 - 11.5551 - 39.50mm1.6562 - 111.7812 - 1-25/32"1.8906 - 112.0079 - 51.00mm2.1250 - 00 - 2-1/4"2.3594 - 2-23/64"3
Chart No 5 - SI Metric Threads (60 Deg Angle)SI Metric Threads (60 Deg Angle)-Dimensions in Millimetres - Inch table belowThread Form DataDiameter O/DiameterTapping DrillCorePitchDepthFlatEffective mmClearance DrillDec / Met / Frac Dec / Met / .00mm2.598mm0.500mm36.402mm6.3535.00mm1-35/64"SI Metric Threads (60 Deg Angle)6.10mm- Dimensions in Inches - Metric table aboveThread Form DataTapping DrillClearance DrillDiameterO/DiameterCorePitchDepthFlatEffective DiaT.P.IDec / Met / Frac Dec / Met / .3780"1.5469"4
Chart No 7 - Cycle Engineer's Standard ThreadsCycle Engineer's Standard Threads (60 Deg)Dimensions in Inches except where statedThread Form e DiaT.P.ITapping Drill17 IWG**0.0560.03880.0026870.00860.016130.047462No 6116 IWG0.0640.04680.0026870.00860.016130.0554623/64"15 IWG0.0720.05480.0026870.00860.016130.063462No 5414 3 IWG0.0920.07300.0029820.00950.01790.082556No 4912 IWG0.1040.07980.003780.01210.02270.091944No 0.154"0.1540.12740.0041650.01330.02500.140740No "1/4"0.2500.20900.0064140.02050.03850.229526No 40.266"0.2660.22500.0064140.02050.03850.245526No *IWG Imperial Wire Gauge Wire gauge sizes are for spokes, larger sizes for hubs and pedals5
Chart No 8 - Model Engineer's and Admiralty Fine ThreadsModel Engineer's Standard Threads (Whitworth Form)Dimensions in Inches except where statedThread Form DataDiameter O/DiameterCoreRadiusDepthPitchEffective DiaT.P.ITapping Drill1/8"0.1250.0930--0.01600.02500.109040No 405/32"0.15630.1242--0.01600.02500.140340No --0.02000.031250.261332Letter C5/16"0.31250.2725--0.02000.031250.292532Letter J3/8"0.3750.3350--0.02000.031250.355032Letter .50000.4508--0.02460.038460.47542629/64"Admiralty Fine Threads (Whitworth Form)Dimensions in Inches except where statedThread Form hEffective DiaT.P.ITapping DrillUnder 1/2"N/AN/AN/A0.02670.04166N/A24N/A1/2" & under 3/4"N/AN/AN/A0.03200.05000N/A20N/A3/4" & under 1"N/AN/AN/A0.04570.07143N/A14N/A1" & under 2"N/AN/AN/A0.05330.08333N/A12N/A2" & under 4"N/AN/AN/A0.08000.12500N/A8N/A4" & overN/AN/AN/A0.10670.16666N/A6N/AUsed on pressure gauges and screwed glands on engines etc.6
Chart No 10 - Small Whitworth ThreadsSmall Whitworth Form Threads (55 Deg Thread Angle)Dimensions in Inches except where statedThread Form DataDiameterTapping DrillO/DiameterCorePitchDepthRadiusEffective DiaT.P.IDec / Met / Frac1/16"0.06250.04110.016660.0107--0.051860No 32"0.093750.06700.020830.01334--0.080448No 487/64"0.109380.08270.020830.01334--0.096048No 441/8"0.125000.09290.025000.01605--0.108540No 409/64"0.140630.10860.025000.01601--0.124640No 335/32"0.156250.11620.031250.02003--0.136232No 3111/64"0.171880.13190.031250.01999--0.151932No 293/16"0.187500.13410.041660.0267--0.160824No 64"0.234380.18110.041660.02664--0.2077243/16"Chart No 6 - 'Continental' Whitworth Threads'Continental' Whitworth Form Threads (55 Deg Thread Angle)Thread Form e 180.03922.79583½7
Chart No 12 - Copper Tube ThreadsCopper Tube Screw Threads (Whitworth Form 55 Deg Thread Angle)Dimensions in Inches except where statedThread Form DataTapping HoleI/DiameterGauge O/DCorePitchDepthRadiusEffective DiaT.P.IDec / Met / Frac1/8" Inside0.2480.2020.03570.0230--0.225028Number 41/4" Inside0.3890.3250.05000.0320--0.357020Letter Q3/8" Inside0.5140.4500.05000.0320--0.48202015/32"1/2" Inside0.6390.5750.05000.0320--0.60702015mm5/8" Inside0.7640.7000.05000.0320--0.73202023/32"3/4" Inside0.8890.8250.05000.0320--0.85702027/32"7/8" Inside1.1040.9500.05000.0320--1.07202024.50mm1" Inside1.1551.0910.05000.0320--1.12302026mm1-1/4" " 4" Inside1.9291.8490.06250.0400--1.8890161-55/64"2" Inside2.1792.0990.06250.0400--2.139162.125"2-1/4" " Inside2.6792.5990.06250.0400--2.639162-5/8"2-3/4" Inside2.9292.8490.06250.0400--2.8890162-55/64"3" Inside3.2033.1230.06250.0400--3.1630163"Chart No 13 - Brass Pipe ThreadsBrass Pipe Screw Threads (Whitworth Form 55 Deg Thread Angle)Dimensions in Inches except where statedThread Form DataTapping HoleDiameterO/DCorePitchDepthRadiusEffective DiaT.P.IDec / Met / Frac1/8"0.1250.07570.038460.0246--0.102026Number 471/4"0.2500.20070.038460.0246--0.225426Number 63/8"0.3750.32570.038460.0246--0.350426Letter 54261-29/64"8
Chart No 14 - B.S. Electrical Conduit ThreadsElectrical Conduit Whitworth Form Threads (55 Deg Thread Angle)Dimensions in Inches except where statedThread Form DataTapping DrillElectrical Conduit Nut SizesO/DiameterCorePitchDepthEffectiveDiaT.P.IDec / Met 50"3.630"3/8"Chart No 15 - British Standard Worm ThreadsThis thread is similar in form to the Acme Thread, in that the included angle is 29 degrees, but the depth of the thread is greater.The width of the flat at both top and bottom are therefore different. The table below gives full machining details.Worm Threads (29 Deg Thread Angle) - NOT AcmeDimensions in Inches except where statedThread Form DataThread Depth below Total Threadpitch lineDepthTooth Thicknessat pitch lineTop ThreadWidthBottom 02780.01860.0172NOTES:-Depth of ThreadWidth of Space at Bottom of ThreadAddendum 0.6866 X Pitch 0.310 X Pitch 0.3194 X PitchWidth at Top of ThreadWidth of Thread at Pitch Line 0.335 X Pitch 0.5 X Pitch9
Popular Thread Standard FormsSelection of Screw Thread Forms, UK, Europe & USA, these are the older 1940's standards.10
Thread Comparison TablesIncludes Older Thread StandardsSee Notes at end of Table - This is Page 1 - Metric (Including BA) & Pipe are on Page 3 & 4British ThreadsThread System:BSW BSFUS ThreadsADMSAE SAE ASME ASME ASMECEI Brass Conduit USSNC NFFineRegular Fine No. Standard --60606060Full Thread DiaThreads Per InchThreads Per 16"0.0625 1.58860--------------------------160.0640 1.626------62--------------------150.0720 1.829------62----------------------0.0730 1.855------------------1726464725/64"0.0781 1.98456--------------------------140.0800 2.0325------62----------------------0.0860 2.185------------------264565664130.0920 -----------------------0.0990 2.515------------------356484856120.1040 2.642------44--------------------7/64"0.1094 2.77948----------------------------0.1120 2.846------------------44840/3640481/8"0.1250 3.17640----4026--------54440/364044--0.1380 3.506------------------64036/3232409/64"0.1406 3.57240----------------------------0.1510 3.836------------------73632/30------0.1540 3.913------40--------------------5/32"0.1562 3.96832--32------------------------0.1640 4.166------------------83632/30323011/64"0.1719 4.36732----------------------------0.1750 4.446------32----------------------0.1770 4.497------------------93230/24----3/16"0.1875 4.7642432--3226------32------------0.1900 4.827------------------103032/242432--0.2031 5.16024----------------------------0.2160 5.488------------------12282424287/32"0.2187 5.5562428--26--------------------15/64"0.2344 5.95524----------------------------0.2420 6.148----24------------142420----3/32"11
1/4"0.2500 6.3522026242626--202836------2028--0.2660 6.758------26----------------------0.2680 6.809------------------162220----9/32"0.2813 7.147--26242626--------------------0.2940 7.470------------------182018----5/16"0.3125 7.9401822242626--182432------1824--0.3200 8.130--------26--------202018------0.3460 8.791------------------221816------0.3720 9.451------------------241618----3/8"0.3750 9.5271620242626--162432------1624--0.3937 10.003----24------------------------0.3980 10.112------------------261614------0.4240 10.772------------------281416----7/16"0.4375 11.1151418242626--142028------1420--0.4500 11.433------------------301416------0.4724 12.002--------26------------------1/2"0.5000 12.703121620262618132028------1320--0.5512 14.004----202626------------------9/16"0.5625 14.2911216202026--121824------12185/8"0.6250 15.879111420--2618111824------111811/16"0.6875 17.467111420--2616--1624----------3/4"0.7500 19.06101214--2616101620------101613/16"0.8125 20.642101214--2616------------------0.8250 20.960----14----------------------7/8"0.8750 22.23191114--261691420----------15/16"0.9375 23.8199--14--26--------------------0.9675 1681420------81425.407* Thread Forms are shown in graphical format on a separate page (from the main menu or link below) The forms page is a slow download.** This is a conversion from the given Inch measurement. The inch dimension has not been changed from the printed paper table. An occasional but increasingerror is present between the Inch figure in the left hand cloumn and the mm dimension converted from the original Inch figure.12
Thread Comparison TablesIncludes Older Thread StandardsSee Notes at end of Table - This is Page 2 - Metric (Including BA) & Pipe are on Page 3 & 4British ThreadsThread System:BSW BSFADMSAE SAE ASME ASME ASMECEI Brass Conduit USSNC NFFineRegular Fine No. Standard -606060 60Full Thread Diafrac/swgUS ThreadsinsThreads Per Inchmm**BThreads Per Inch1-1/8"1.1250 28.5827912--26--71218------7121-1/4"1.2500 31.7587912--261671218------712--1.2900 32.774------24----------------------1.3700 34.807------24--------------------1-3/8"1.3750 34.934681224261661218------6121-7/16"1.4375 36.522----122426------------------1-1/2"1.5000 38.110681224261461218------6121-5/8"1.6250 41.2865812------5½1216----------1-3/4"1.7500 44.4615712----1451216------5--1-7/8"1.8750 47.6374½712------51216----------2"2.0000 50.8134½78------51216------4½--2-1/8"2.1250 53.9894½--8--------1216----------2-1/4"2.2500 57.165468------4½1216------4½--2-3/8"2.3750 60.3404--8--------1216----------2-1/2"2.5000 63.516468----1441216------4--2-5/8"2.6250 66.6924--8--------1216----------2-3/4"2.7500 69.8683½68------41216------4--2-7/8"2.8750 73.0443½--8--------1216----------3"3.0000 76.2203½58------3½1016------4--3-1/8"3.1250 79.3953½--8------3½1016------4--3-1/4"3.2500 82.5713¼--8------3½1016------4--3-1/2"3.5000 88.9233¼--8------3¼1016------4--3-5/8"3.6250 92.0993¼--8--------1016----------3-3/4"3.7500 95.2743--8------31016----------3-7/8"3.8750 98.4503--8--------1016----------4"4.0000 101.6263--6------31016------4--4-1/8"4.1250 104.8023--6--------1016----------4-1/4"4.2500 107.978 2-7/8--6--------1016----------4-3/8"4.3750 111.153 2-7/8--6--------1016----------4-1/2"4.5000 114.329 2-7/8--6------2¾1016----------4-5/8"4.6250 117.505 2-7/8--6--------1016----------4-3/4"4.7500 120.681 2-3/4--6------2-5/81016----------13
4-7/8"4.8750 123.857 2-3/4--6--------1016----------5"5.0000 127.033 2-3/4--6------2½1016------------5.1969 132.035--6--------1016------------5-1/4"5.2500 133.384 2-5/8--6--------1016----------5-3/8"5.3750 135.560--6--------1016----------5-1/2"5.5000 139.736 2-5/8--6------2-3/81016------------* Thread Forms are shown in graphical format on a separate page (from the main menu or link below) The forms page is a slow download.** This is a conversion from the given Inch measurement. The inch dimension has not been changed from the printed paper table. An occasional but increasingerror is present between the Inch figure in the left hand cloumn and the mm dimension converted from the original Inch figure.14
Thread Comparison TablesIncludes Older Thread StandardsSee Notes at end of Table - This is Page 3 - Imperial & US are on Page 1 & 2Metric ThreadsThread peSize.BSPDDFFH--AGA6060606053 8'--556055Metric SwissFineStdBAS.I.Form*CDDAngle47½6060Full Thread DiaPipe ThreadsPitch in mmBriggs CopperThreads Per -----15
1.251.751.501.60----------0.5140 13.059------------------3/8"----20--0.5180 13.161------------------1/4"19------0.5343 13.575------------------1/4"--18--14.000.5512 6299 16.004----2.01.502.01.252.01.52.0----------0.6390 16.235------------------1/2"----20--0.6560 16.666------------------3/8"19------0.6714 17.058------------------3/8"--18--18.000.7087 18.006----2.51.52.51.52.51.52.20----------0.7640 19.411------------------5/8"----2020.00 0.7874 20.005----2.51.52.51.52.51.52.40----------0.8250 20.960------------------1/2"14------0.8355 21.227------------------1/2"--14--22.000.8661 22.004----2.51.52.51.52.51.52.80----------0.8890 22.586------------------3/4"----20--0.9020 22.917------------------5/8"14----24.000.9449 24.007----3.02.03.01.53.01.52.80--------* Thread Forms are shown in graphical format on a separate page (from the main menu or link below) The forms page is a slow download.** This is a conversion from the given Inch measurement. The inch dimension has not been changed from the printed paper table. An occasional but increasingerror is present between the Inch figure in the left hand cloumn and the mm dimension converted from the original Inch figure.16
Thread Comparison TablesIncludes Older Thread StandardsSee Notes at end of Table - This is Page 3 - Imperial & US are on Page 1 & 2Metric 0Thread System:BANoPipe ThreadsFull Thread DiaPipeSize.BSPH--AGA53 8'--556055Pitch in mmBriggs CopperThreads Per 62260.015----5.54.05.52.55.52.0----------17
-------100.00 3.9370--3.9500 100.356------------------3½"11------3.9770 101.042------------------3¾"----16--3.9888 101.341------------------3½"--8--102.00 4.0158 102.027--------------3.0----------104.00 4.0945 104.027------------6.0------------105.00 4.1339 105.028--------------3.0------------4.2000 106.707------------------3¾"11------4.2510 108.003------------------4"----16108.00 4.2520 108.028--------------3.0----------109.00 4.2913 109.027------------6.0------------110.00 4.3307 110.028--------------3.0----------112.00 4.4094 112.027--------------3.0------------4.4500 113.059------------------4"11------4.4871 114.001------------------4"--8--114.00 4.4882 114.029------------6.0------------115.00 4.5276 115.030--------------3.0----------18
118.00 4.6458 118.034--------------3.0----------120.00 4.7244 120.030--------------3.0----------122.00 4.8032 122.032--------------3.0----------124.00 4.8820 124.035------------6.0------------125.00 4.9214 125.036--------------3.0------------4.9500 125.762---------------
Chart No 1 - Whitworth Threads Whitworth Form Threads (55 Deg Thread Angle) Dimensions in Inches except where stated Thread Form Data Tapping Drill Clearance Drill Diameter O/Diameter Core Pitch Depth Radius Effective Dia T.P.I Dec / Met / Frac Dec / Met / Frac 1/8" 0.1250 0.0930 0.0250 0.0160 0.0034 0.1090 40 0.1004 - 2.55mm 0.1299 - 3.30mm .
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Recruitment of Constables (GD) in BSF, CISF, CRPF and SSB, 2011 IMPORTANT INSTRUCTIONS TO CANDIDATES 1. Commission will make recruitment to 49,080 posts of Constable (GD) in the Border Security Force(BSF), Central Reserve Police Force(CRPF), Central Indust
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This is the SANS Institute's second survey on application security programs and practices. In this year's survey, we wanted to uncover answers to the following questions: t )PX XJEFTQSFBE BSF BQQMJDBUJPO TFDVSJUZ QSPHSBNT BOE IPX NBUVSF BSF UIF programs that are in place today? t )PX FòFDUJWF BSF UIFTF QSPHSBNT
The Biosand Water Filter (BSF) is a technology being implemented in 70 countries worldwide to address water quality concerns. When installed and used properly, the BSF has been proven effective in numerous studies to remove 90 to 99% of waterborne pathogens (CAWST1 2006). Made from locally available materials, the BSF offers a way for people to .
Thread the machine carefully and in the correct sequence. Invaluable threading aids simplify threading: coloured threading illustration colour coded thread path on the machine. threading accessories. Thread guide bar Slide thread into the two slits to form an S-loop. Thread tension The thread
IAAF SCORING TABLES OF ATHLETICS / IAAF TABLES DE COTATION D’ATHLETISME VI AUTHORS’ INTRODUCTION The Scoring Tables of Athletics are based on exact statistical data and according to the following principles: The scores in the tables of different events cover equivalent performances. Therefore, the tables can beFile Size: 2MBPage Count: 368Explore furtherIAAF Scoring Calculatorcaltaf.comIAAF Scoring Tables of Athletics 2017ekjl.eeIAAF Scoring Tables for Combined Eventswww.rfea.esIAAF scoring tables updated for 2017 Newswww.worldathletics.orgstatistics - How to calculate IAAF points? - Sports Stack .sports.stackexchange.comRecommended to you b
AutoCAD 2000, 2000i & 2002 System Variables Highlighted numbers are preferred or standard Variables pertain to all versions except where noted (200XX) System Variable Command(s) affected _PKSER Environment (Read-only) Type: Integer Saved in: Registry Returns the serial number assigned to AutoCAD ACADLSPASDOC TOOLS/OPTIONS Type: Integer Saved in: Registry Initial value: 0 Controls whether .
