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Fracs Size TPI Basic Hi Hi 3A Go 3A Lo 2A Go 2A Lo Fracs Size TPI Basic Hi Hi 3A Go 3A Lo 2A Go 2A Lo 54 Thread Check Product Catalog TollFree Phone Fax 034 TCI_Catalog_1008indd 54 10/21/08 PM3/816 UNC 2B (21) The "2B" is a tolerance class The standards for a thread series include specifications of tolerances Most specify several different classes, because for some uses a close fit is essential, while achieving it for other uses would be a waste of moneyTap size NF/NC UNF/UNC Threads per inch Basic major dia (inches) Basic effective dia (inches) Basic minor dia of ext threads (inches) Basic minor dia of int threads (inches) Drill size 080 UNF 80 0600 0519 0447 0465 3/64 164 UNC 64 0730 0629 0538 0561 #54 256 UNC 56 0860 0744 0641 0667 #50 264 UNF 64 0860 0759 0668 0691 #50

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What is 3/8-16 unc
What is 3/8-16 unc-Length of Insert (in Diameter) Nominal Length Diameter;ANSI/ ASME INTERNAL Screw Thread Size Chart All units are in inches Unified Screw Threads per ANSI/ASME B1119 (R01), R01) Nomenclature, are used Acceptability criteria are described in ANSI/ASME B13M1992 (R01)



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Threaded Plug Gauge Assembly, Thread Type UNC, Thread Size 3/8"16, Thread Class 2B Item # 6DHL7;Tap size NF/NC UNF/UNC Threads per inch Basic major dia (inches) Basic effective dia (inches) Basic minor dia of ext threads (inches) Basic minor dia of int threads (inches)Nominal Diameter Major Diameter Inch Major Diameter mm Tapping Drill Size mm TPI Pitch mm #1 64 UNC 0073 1854 150 64 0397 #2 56 UNC 0086 2184 1
Unified Screw Thread Chart, UNC, UNF, UNEF, Major Diameter, Minor Diameter, Pitch, External Thread, Internal Thread, Size from #0 to 25Screw Thread Designations, Minor Diameter, Major Diameter, Pitch Diameter;Nominal size unified pitch diameter class 2a class 3a x tol go = – no go = go not go go not go #080 unf #164 unc
Cast Iron Flanges Stud Reference Chart The number, diameter and length of studs for cast iron flanges class 125 and 250;Gage a ssembly manufacturers of precision gages standard pitch diameter chart /lspjhs *vps 7s\n hnlz nominal 0a, go pitch diameters x tol go = no go =– ) 56;ANSI/ ASME EXTERNAL Screw Thread Size Chart All units are in inches Unified Screw Threads per ANSI/ASME B1119 (R01), R01) Nomenclature, are used Acceptability criteria are described in ANSI/ASME B13M1992 (R01)



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THREAD PITCH CHART (UNC / UNF / UNEF / UN) Thread pitch chart for UNC, UNF, UNEF and UN up to 2 inch according to ASME B11 Thread pitch chart Threads / in Nominal Size, in Series With Graded Pitches Series with Constant Pitches Nominal Size, in Basic Major Diameter UNC UNF UNEF 4UN 6UN 8UN 12UN 16UN UN 28UN 32UNUNC UNF Diameter Index DiameterACT ALWAYS PRECISE Standard Pitch Diameter Chart 16 Plug Thread Gages NOMINAL SIZE UNIFIED PITCH DIAMETERS CL 2B CL 3B #0 80 UNF 0519 0542 0536 0002 0002 0°30'


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Nut Size 10 019 #9 24 #25 32 #21 #23,#22 Gage and Fractional Sizes Clearance Drill Tap Drill for UNC UNF tpi Tap Drill for UNF #7 28 #3 32 UNC, UNF, UNEF, UNS screw thread gauges to one inch in diameter These series (and the UNR, UNJ and fixedpitch series) are the inchbased thread series currently used in the United States, and1 15 2 25 3 Min Max 1 15 2 25 3;Pitch Diameter Minor Diameter Male Thread Minor Diameter Female Thread;



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2)The UNF threads have smaller pitch, there are more teeth are screwed in the same thread length, it can reduce fluid leakage, so it is used in the applications where sealing is needed 3)The UNC thread has less teeth of the same length, larger crosssection size of each tooth, and more suitable for bearing larger tensile force and impact forceMfr Model # Pitch Diameter Go Member in;NoGo Pitch Diameter " Material 01 Tool Steel 6062 RC;


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It will follow an "x" after the diameter number Specifying the pitch is important for distinguishing between coarse and fine screws Coarse screws have a larger pitch than similarlysized fine screws A M12 x 175 x 85 screw, for instance, has threads every 175 mm (0069 in) The second number, 175, indicates the pitchDiameter Pitch TPI Thread Fit Class Major Diameter Pitch Diameter Minor Diameter Stress Area Max Min Max Min Max Min in² No 1 64 2A No 2 56 2A No 3 48 2A 009 005ANSI/ ASME INTERNAL Screw Thread Size Chart All units are in inches Unified Screw Threads per ANSI/ASME B1119 (R01), R01) Nomenclature, are used Acceptability criteria are described in ANSI/ASME B13M1992 (R01)


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Thread Size Nominal Length 1 Free Outer Diameter Number of Free Coils 2;Relation Of Tap Pitch Diameter To Basic Pitch Diameter American tap manufacturers use a series of tap pitch diameter limits These limits feature a 0005" tolerance in tap sizes #0 through 1 inch, and a 001 inch or greater tolerance in tap sizes above 1 inch through 11/2 inch diameter, inclusiveWire Diameters Diameter of the wires used to measure the dimension close to the pitch diameter the external screw thread Tolerances Allowance Fundamental deviation of the basic size, applies only to 1A and 2A external classes Major/Pitch/Minor diameters The difference between the maximum and minimum diameters



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Max Major Min Major UNR Minor Dia TPI Pitch P/4 P/8 Max Minor Min Minor Major Dia(Min) inch inch inch inch inch inch inch inch inch inch Ext 5/ 1618 UNC 18 0013 1A 029 Int 18 0013 1B 0265 0252 Ext 5/ 1618 UNC 18 0013 2A 0298The basic pitch diameter is the nominal (mean) pitch diameter of the product assembly, internal and external thread It is the base value for the application of the thread class and allowance Figure 1 illustrates the thread class, allowance and the basic pitch diameter for both unified inch screw threads and M Series metric screw threads andThread series cover designations of diameter/pitch combinations that are measured by the number of threads per inch (TPI) applied to a single diameter Coarse Thread Series (UNC/UNRC) is the most common designation for general application bolts and nuts Coarse thread is beneficial, because they are less likely to cross thread, more tolerant in



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Product Compare (0) Sort By Show Vermont Gage 3/816 UNC 2B TAPERLOCK Thread Plug Gage, Go Member Only *actual product may differ Vermont Gage 3/816 UNC 2B TAPERLOCK Thread Plug Gage, Go/NoGo $7800 $00 Add to Cart Vermont Gage 3/816 UNCRelation Of Tap Pitch Diameter to Basic Pitch Diameter American Tap Manufacturers use a series of tap pitch diameter limits These limits feature a 0005 tolerance in tap sizes #0 Thru 1" and a 001" or greater tolerance in tap sizes above 1" thru 1 1/2" diameter Example 1/4 Relationship between Tap Pitch diameter limits and basic nominalThread Direction Right Hand;


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Nominal size & pitch for external thread for internal thread pitch diameter go ring gage 6g tolerance pitch diameter not go ring gage 6g tolerance pitch diameter go plug gage 6h tolerance pitch diameter not go plug gage 6h tolerance mm in (ref) mm in (ref) mm in (ref) mm in (ref) m 16x 035 1354 1291 050 1373 1458EN Pipe threads where pressure tight joints are made on the threads Dimensions Pipe threads where pressure tight joints are made on the threads Part 1 Taper external threads and parallel internal threadsAn H2 tap from 0005" over basic



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Working Thread Plug, Thread Ring and Thread Setting Plug Gages are manufactured to inspect the Pitch Diameter and the Functional Thread Thread gages are used to ensure the assembly of mating parts Unified Inch standard gages are manufactured per ASME B12 M Series Metric thread gages are manufactured per ASME B116MTaps Pitch Diameter Limit Pitch Diam Limits Maximum Pitch Diam Limits Maximum Pitch Diam Limits Maximum Pitch Diam Limits Maximum All Classes Minimum Basic Pitch Diameter Threads Per Inch Unified Classes of Thread American National ISO Metric Class of Threads Size mm Pitch mm NC UNC NF UNF Rec* Taps Rec* Taps Rec* Taps CLASS 2B ForPitch Diameter NoGo Member in;


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Threads per inch 16 Series UNC;Each thread in the series is characterized by its major diameter D maj and its pitch, PUTS threads consist of a symmetric Vshaped thread In the plane of the thread axis, the flanks of the V have an angle of 60° to each other The outermost 1 ⁄ 8 and the innermost 1 ⁄ 4 of the height H of the Vshape are cut off from the profile The pitch P is the distance between thread peaksThread plug gages nominal size go basic all classes all series unified pitch diameters not go x tolgo =no go=– xleadtol x ±halfangletol cl 2b cl 3b #0 80 unf 0519 0542 0536 0002 0002 0°30' #1 64 unc 0629 0655 0648 0002 0002 0°30' #1 72 unf 0640 0665 0659 0002 0002 0°30' #2 56 unc 0744 077



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Screw Thread Designations, Minor Diameter, Major Diameter, Pitch Diameter;Are designated by the letter H (high) above basic pitch diameter, or L (low) below basic pitch diameter, and these numbers establish the tolerance range in relation to basic pitch diameter As an example, in sizes 1" and smaller, an H1 tap has a tolerance range of from basic to 0005" over basic;Tap size NF/NC UNF/UNC Threads per inch Basic major dia (inches) Basic effective dia (inches) Basic minor dia of ext threads (inches) Basic minor dia of int threads (inches) Drill size 080 UNF 80 0600 0519 0447 0465 3/64 164 UNC 64 0730 0629 0538 0561 #54 256 UNC 56 0860 0744 0641 0667 #50 264 UNF 64 0860 0759 0668 0691 #50



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Nominal Thread Size Covered Range 080 UNF to ¼56 UNS Nominal thread sizes from 080 UNF to ¼56 UNS 5/1618 UNC to 9/16 32 UN Nominal thread sizes from 5/1618 UNC to 9/16 32 UNFracs Size TPI Basic Hi Hi 3A Go 3A Lo 2A Go 2A Lo Fracs Size TPI Basic Hi Hi 3A Go 3A Lo 2A Go 2A Lo 54 Thread Check Product Catalog TollFree Phone Fax 034 TCI_Catalog_1008indd 54 10/21/08 PMRelation Of Tap Pitch Diameter To Basic Pitch Diameter American tap manufacturers use a series of tap pitch diameter limits These limits feature a 0005" tolerance in tap sizes #0 through 1 inch, and a 001 inch or greater tolerance in tap sizes above 1 inch through 11/2 inch diameter, inclusive


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EN Pipe threads where pressure tight joints are made on the threads Dimensions Pipe threads where pressure tight joints are made on the threads Part 1 Taper external threads and parallel internal threads3 NTS I nternal t hreads C lass 2B ASME B1108 Nominal Size & Threads per Inch Series DesignationCast Iron Flanges Stud Reference Chart The number, diameter and length of studs for cast iron flanges class 125 and 250;



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UNC / UNF plug gages GGRLD are designed to inspect the pitch diameter and functional thread for internalthread components All plug gages are available with Certificate of Accuracy documentation Gage dimensions according to ANSI/ASME B12 Short form certificate is supplied at no additional charge Long form certificate is available on request Thread gages are for UNC & UNF 3B class of fitDiameter Minor Diameter Pitch Line Axis of internal thread INTERNAL THREADSCLASS 2B ASME B11 Nominal Size & Threads per Inch Series Designation Allowance Minor Diameter Pitch Diameter Major Diameter Min Max Min Max Tolerance Min 080 UNF 164 UNCUnified Screw Thread Chart, UNC, UNF, UNEF, Major Diameter, Minor Diameter, Pitch, External Thread, Internal Thread, Size from #0 to 25



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Nominal Diameter Major Diameter Inch Major Diameter mm Tapping Drill Size mm TPI Pitch mm #1 64 UNC 0073 1854 150 64 0397 #2 56 UNC 0086 2184 1THREAD PITCH CHART (UNC / UNF / UNEF / UN) Thread pitch chart for UNC, UNF, UNEF and UN up to 2 inch according to ASME B11 Thread pitch chart Threads / in Nominal Size, in Series With Graded Pitches Series with Constant Pitches Nominal Size, in Basic Major Diameter UNC UNF UNEF 4UN 6UN 8UN 12UN 16UN UN 28UN 32UNPitch Diameter NoGo Member in;


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Are designated by the letter H (high) above basic pitch diameter, or L (low) below basic pitch diameter, and these numbers establish the tolerance range in relation to basic pitch diameter As an example, in sizes 1" and smaller, an H1 tap has a tolerance range of from basic to 0005" over basic;Mfr Model # Pitch Diameter Go Member in;An H2 tap from 0005" over basic



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Class X Tolerance, includes Long Form CertificateCoarse and Fine Threaded Screw Information All Diameters in Inches;Threaded Plug Gauge Assembly, Thread Type UNC, Thread Size 3/8"16, Thread Class 2B Item # 6DHL7;



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Screw Thread Designations, Minor Diameter, Major Diameter, Pitch Diameter;Size Threads/Inch Outside Diameter Tap Drill Body Drill;UNC plug gages GGRLD are designed to inspect the pitch diameter and functional thread for internalthread components All plug gages are available with Certificate of Accuracy documentation Gage dimensions according to ANSI/ASME B12 Short form certificate is supplied at no additional charge Long form certificate is available on request Thread gages are for UNC 2B class


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Thread Direction Right Hand;3 1/2 4 323 3 3/4 4 4 4 376 Note Due to the fact that fastening applications differ greatly, the above information is for guidance only and is correct to the best of our knowledgePlease let us know if you need a special pitch diameter quoted!


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Nut Size 10 019 #9 24 #25 32 #21 #23,#22 Gage and Fractional Sizes Clearance Drill Tap Drill for UNC UNF tpi Tap Drill for UNF #7 28 #3 32 UNC, UNF, UNEF, UNS screw thread gauges to one inch in diameter These series (and the UNR, UNJ and fixedpitch series) are the inchbased thread series currently used in the United States, andClass 2B Taperlock Thread Plug Gage DoubleEnd Set Go Pitch Diameter ";


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