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  1. www.machiningdoctor.com › charts › unified-inchUnified Threads (UNC/UNF/UNEF): Dimensions & Formulas

    For example 1/4″, 3/4″, 1 1/4″. Below 1/4″ the diameters are given by a series of numbers from #0 to #12. Each “number” describes an arbitrary diameter as shown in the below table. It is also allowed to denote the diameters with a decimal value. For example 0.250 (1/4″), 0.4375 (7/16″), etc. Standard Diameter numbers below 1/4″

  2. www.cnclathing.com › guide › unc-and-unf-threadUNC and UNF Thread Chart PDF (Dimensions, Diameter, Size in ...

    Feb 23, 2024 · For example, for a 1/4″-20 UNC thread, which has 20 threads per inch: Threads Per Inch (TPI): 20; Major Diameter: 0.250 inches (1/4 inch) Tap Drill Size: Typically, this would be around 0.201 inches for a 1/4″-20 tap (calculated by subtracting the pitch from the major diameter, or using a tap drill chart). Pitch: 0.050 inches (calculated as ...

  3. storage.tameson.com › asset › Articlesunified-thread-standard-charts - Tameson.com

    1⁄4 5⁄16 3⁄8 7⁄16 1⁄2 9⁄16 5⁄8 3⁄4 7⁄8 1 0.216 0.25 0.3125 0.375 0.4375 0.5 0.5625 0.625 0.75 0.875 1 5.486 6.350 7.938 9.525 11.113 12.700 14.288 15.875 19.050 22.225 25.400 32 32 32 32 28 28 24 24 20 20 20 0.031 0.031 0.031 0.031 0.036 0.036 0.042 0.042 0.050 0.050 0.050 0.794 0.794 0.794 0.794 0.907 0.907 1.058 1.058 1.270 ...

  4. www.albanycountyfasteners.com › v › threadchartThread Identification Chart for US and Metric Thread Systems

    1.1811 30.00 30 *x 3.5 1, 1.5, 2, 3 1.1875 30.16 1-3/16 18 1.1890 30.20 1.2500 31.75 1-1/4 7 12 18 1.2598 32.00 32 ***x 1.5, 2 1.2992 33.00 33 **x 3.5 1.5, 2, 3 1.3090 33.25 1.3125 33.34 1-5/16 18 1.3150 33.40 1 11-1/2

  5. www.haguefasteners.co.uk › guide-screw-threadsGuide To Screw Threads - Hague Fasteners Limited

    Oct 29, 2016 · Click To Download our Fastener Data Sheet Of Screw Thread Sizes. A single Data reference PDF for Fastener Thread Sizes, Pitches and Cross references across UNC, UNF, UN, BSW, BSF, SI & ISO Metric along with BSP, NPT, NPS & ISO Pipe Threads, American Threads and BA, Conduit and Cycle Threads.

  6. www.engineeringtoolbox.com › unified-screw-threadsUNC and UNF - Unified Coarce and Unified Fine Inch Threads

    Nov 25, 2010 · Diameters and bolt circles for standard ASME B16.5 flanges - 1/4 to 24 inches - Class 150 to 2500. ISO 2841 - Spark Plugs Metric Threads Metric threads spark plugs according ISO 28741.

  7. www.portlandbolt.com › technical › thread-pitch-chartThread Pitch Chart - Portland Bolt

    Coarse Thread Series - UNC Fine Thread Series - UNF 8-Thread Series - 8UN; Nominal Size and Threads Per In. Basic Pitch Dia. Section at Minor Dia. Tensile Stress Area