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    T838 • Form C Semi-Bottoming Chamfer • Machine Screw and Fractional • ANSI • Tension/Compression Holders

    GOtap™ T838 Spiral-Flute HSS-E Taps • Blind Holes

    Material Number6140681

    ISO Catalog IDT838NF02500-28RH7-AANSI Catalog IDT838NF02500-28RH7-A

    T838 ANSI Inch Threading - 6140681 - Kennametal
    T838 ANSI Inch Threading - 6140681 - Kennametal
    T838 ANSI Inch Threading - 6140681 - Kennametal
    Open expanded view
    T838 ANSI Inch Threading - 6140681 - Kennametal
    T838 ANSI Inch Threading - 6140681 - Kennametal
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    $46.62/each
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    • P Steel
    • M Stainless Steel
    • K Cast Iron
    • 100076705100076705
    • Tapping: Blind HoleTapping: Blind Hole
    • Chamfer Form C (2–3)Chamfer Form C (2–3)
    • 3861838618
    • Flood Coolant: TappingFlood Coolant: Tapping
    • Manufacturer’s Specs: UNFManufacturer’s Specs: UNF
    • Manufacturer’s Specs: UNCManufacturer’s Specs: UNC
    • Manufacturer’s Specs: ANSIManufacturer’s Specs: ANSI
    • Tapping Helix Angle: 45°Tapping Helix Angle: 45°
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    Drawings for 6140681
    Metric
    Inch
    Material Number6140681
    ISO Catalog IDT838NF02500-28RH7-A
    ANSI Catalog IDT838NF02500-28RH7-A
    GradeKSP39
    [D1-TDZ] Thread Diameter Size1/4 - 28
    [L] Overall Length 63.5 mm
    [L] Overall Length 2.5 in
    [L3] Thread Length 16 mm
    [L3] Thread Length 0.63 in
    [L2] Useable Length 25.4 mm
    [L2] Useable Length 1 in
    [D] Adapter / Shank / Bore Diameter6.477 mm
    [D] Adapter / Shank / Bore Diameter0.255 in
    [Z] Number of Flutes3
    Tap Pitch Diameter LimitH7
    See all Product Variants

    Workpiece Materials

    • Steel
    • Stainless Steel
    • Cast Iron

    Uses and application

    • 100076705100076705
    • Tapping: Blind HoleTapping: Blind Hole
    • Chamfer Form C (2–3)Chamfer Form C (2–3)
    • 3861838618
    • Flood Coolant: TappingFlood Coolant: Tapping
    • Manufacturer’s Specs: UNFManufacturer’s Specs: UNF
    • Manufacturer’s Specs: UNCManufacturer’s Specs: UNC
    • Manufacturer’s Specs: ANSIManufacturer’s Specs: ANSI
    • Tapping Helix Angle: 45°Tapping Helix Angle: 45°

    Grades

    KSP39

    KSP39

    HSS-E substrate with black oxide surface treatment. Use in a variety of materials, including steel, stainless steel, and ductile iron. Not recommended for non-ferrous materials.

    Features and benefits

    • KSP32 TiCN/TiN
    • KSP39 oxide

    Create Solution to calculate Feeds and Speeds

    After creating a solution just choose the Feeds & Speeds icon and our system will provide recommendations. You can customize the information by adding your machine and specifications or make adjustments using the sliders.

    Tolerance

    shank tolerance
    D inchtolerance
    .141 .635+0, -.0015
    .635 1.51+0, -.0020
    1.51 2.01+0, -.0030
    shank tolerance
    D mm tolerance h9
    1 3+0, -0,025
    3 6+0, -0,030
    6 10+0, -0,036
    10 18+0, -0,043
    18 30+0, -0,052
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    Product data

    SDS

    Safety Data Sheets
    Create Solution to find the perfect compatible parts for your tool.
     
    Product Name
    Material Number
    ISO Catalog ID
    ANSI Catalog ID
     
    DA J series Collet
    DA J series Collet
    1016473
    JTC025
    JTC025
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    DA K series - Tap Collets
    DA K series - Tap Collets
    1016524
    KTC025
    KTC025
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    /each
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    DA L series - Tap Collets
    DA L series - Tap Collets
    1016525
    LTC025
    LTC025
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    ER Tension-Only Solid Tap Collets
    ER Tension-Only Solid Tap Collets
    1026372
    20ERTCT025
    20ERTCT025
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    Sold in pkg. of 0Adjusted to meet the minimum package size.
    Minimum qty: 0Adjusted to meet the minimum quantity requirement.
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    ER Tension-Only Solid Tap Collets
    ER Tension-Only Solid Tap Collets
    1026396
    32ERTCT025
    32ERTCT025
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    Sold in pkg. of 0Adjusted to meet the minimum package size.
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    ER Standard Tap Collets • Inch/Metric ANSI
    ER Standard Tap Collets • Inch/Metric ANSI
    1026403
    16ERTC025
    16ERTC025
    List Price
    /each
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    Sold in pkg. of 0Adjusted to meet the minimum package size.
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    ER Standard Tap Collets • Inch/Metric ANSI
    ER Standard Tap Collets • Inch/Metric ANSI
    1026427
    20ERTC025
    20ERTC025
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    Sold in pkg. of 0Adjusted to meet the minimum package size.
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    ER Standard Tap Collets • Inch/Metric ANSI
    ER Standard Tap Collets • Inch/Metric ANSI
    1026445
    25ERTC025
    25ERTC025
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    Sold in pkg. of 0Adjusted to meet the minimum package size.
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    ER Standard Tap Collets • Inch/Metric ANSI
    ER Standard Tap Collets • Inch/Metric ANSI
    1026455
    32ERTC025
    32ERTC025
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    Sold in pkg. of 0Adjusted to meet the minimum package size.
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    ER Standard Tap Collets • Inch/Metric ANSI
    ER Standard Tap Collets • Inch/Metric ANSI
    1026475
    40ERTC025
    40ERTC025
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    Sold in pkg. of 0Adjusted to meet the minimum package size.
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    In StockThis item is no longer availableLonger Delivery
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