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Industrial Hardware and Specialties is classified as an ESSENTIAL business and is fully operational.

Please read our COVID-19 Message to our valued customers.

Threaded Insert Taps

Screw thread insert taps (STI taps) operate in the same manner as “standard†taps, but produce an oversized thread specifically for threaded inserts. During insert installation, the threads cut by an STI tap form the insert into the desired thread size. STI taps are ideal for tapping holes in softer metals that require a strong threaded insert. STI taps are manufactured from high speed steel (HSS) for superior durability. We offer STI taps in a wide range of inch, metric, and spark plug sizes to meet your unique requirements.

SwiftSert Standard Wall Inserts

Available In:

  • Inch sizes from #2 to 3-1/2
  • Metric sizes from M2.2 to M64
  • Manufactured from high speed steel (HSS)
  • Straight flute
  • 4-thread lead
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  1. Right-Hand 358 items
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  1. M6 x 1 1 item
  2. 1/4-20 1 item
  3. 1/4-28 1 item
  4. 5/16-18 1 item
  5. 5/16-24 1 item
  6. M8 x 1 1 item
  7. M8 x 1.25 1 item
  8. 3/8-16 1 item
  9. 3/8-24 1 item
  10. M10 x 1.25 1 item
  11. M10 x 1.5 1 item
  12. 7/16-14 1 item
  13. 7/16-20 1 item
  14. M12 x 1.25 1 item
  15. M12 x 1.75 1 item
  16. 1/2-13 1 item
  17. 1/2-20 1 item
  18. M14 x 1.5 1 item
  19. M14 x 2 1 item
  20. 9/16-18 1 item
  21. 5/8-11 1 item
  22. 5/8-18 1 item
  23. M16 x 1.5 1 item
  24. M16 x 2 1 item
  25. M18 x 1.5 1 item
  26. M18 x 2.5 1 item
  27. 3/4-10 1 item
  28. 3/4-16 1 item
  29. M20 x 1.5 1 item
  30. M20 x 2.5 1 item
  31. M22 x 1.5 1 item
  32. 7/8-14 1 item
  33. 7/8-9 1 item
  34. M24 x 2 1 item
  35. M24 x 3 1 item
  36. 1-14 1 item
  37. 1-8 1 item
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Items 1-30 of 37

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  1. M24 x 3 Left-Hand STI Plug Tap - High Speed Steel

    Sku #: 35L7H1-21Z0V-C24Q

    M24 x 3 Left-Hand STI Plug Tap - High Speed Steel
    Special Price $286.04 Regular Price $430.00
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  2. M24 x 2 Left-Hand STI Plug Tap - High Speed Steel

    Sku #: 35L7H1-21Z0V-C24N

    M24 x 2 Left-Hand STI Plug Tap - High Speed Steel
    Special Price $286.04 Regular Price $430.00
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  3. M22 x 1.5 Left-Hand STI Plug Tap - High Speed Steel

    Sku #: 35L7H1-21Z0V-C22J

    M22 x 1.5 Left-Hand STI Plug Tap - High Speed Steel
    Special Price $201.22 Regular Price $302.50
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  4. M20 x 2.5 Left-Hand STI Plug Tap - High Speed Steel

    Sku #: 35L7H1-21Z0V-C20P

    M20 x 2.5 Left-Hand STI Plug Tap - High Speed Steel
    Special Price $172.95 Regular Price $260.00
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  5. M20 x 1.5 Left-Hand STI Plug Tap - High Speed Steel

    Sku #: 35L7H1-21Z0V-C20J

    M20 x 1.5 Left-Hand STI Plug Tap - High Speed Steel
    Special Price $172.95 Regular Price $260.00
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  6. M18 x 2.5 Left-Hand STI Plug Tap - High Speed Steel

    Sku #: 35L7H1-21Z0V-C18P

    M18 x 2.5 Left-Hand STI Plug Tap - High Speed Steel
    Special Price $165.02 Regular Price $235.00
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  7. M18 x 1.5 Left-Hand STI Plug Tap - High Speed Steel

    Sku #: 35L7H1-21Z0V-C18J

    M18 x 1.5 Left-Hand STI Plug Tap - High Speed Steel
    Special Price $165.02 Regular Price $235.00
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  8. M16 x 2 Left-Hand STI Plug Tap - High Speed Steel

    Sku #: 35L7H1-21Z0V-C16N

    M16 x 2 Left-Hand STI Plug Tap - High Speed Steel
    Special Price $161.51 Regular Price $230.00
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  9. M16 x 1.5 Left-Hand STI Plug Tap - High Speed Steel

    Sku #: 35L7H1-21Z0V-C16J

    M16 x 1.5 Left-Hand STI Plug Tap - High Speed Steel
    Special Price $161.51 Regular Price $230.00
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  10. M14 x 2 Left-Hand STI Plug Tap - High Speed Steel

    Sku #: 35L7H1-21Z0V-C14N

    M14 x 2 Left-Hand STI Plug Tap - High Speed Steel
    Special Price $121.13 Regular Price $172.50
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  11. M14 x 1.5 Left-Hand STI Plug Tap - High Speed Steel

    Sku #: 35L7H1-21Z0V-C14J

    M14 x 1.5 Left-Hand STI Plug Tap - High Speed Steel
    Special Price $121.13 Regular Price $172.50
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  12. M12 x 1.75 Left-Hand STI Plug Tap - High Speed Steel

    Sku #: 35L7H1-21Z0V-C12M

    M12 x 1.75 Left-Hand STI Plug Tap - High Speed Steel
    Special Price $79.00 Regular Price $112.50
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  13. M12 x 1.25 Left-Hand STI Plug Tap - High Speed Steel

    Sku #: 35L7H1-21Z0V-C12H

    M12 x 1.25 Left-Hand STI Plug Tap - High Speed Steel
    Special Price $79.00 Regular Price $112.50
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  14. M10 x 1.5 Left-Hand STI Plug Tap - High Speed Steel

    Sku #: 35L7H1-21Z0V-C10J

    M10 x 1.5 Left-Hand STI Plug Tap - High Speed Steel
    Special Price $66.71 Regular Price $95.00
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  15. M10 x 1.25 Left-Hand STI Plug Tap - High Speed Steel

    Sku #: 35L7H1-21Z0V-C10H

    M10 x 1.25 Left-Hand STI Plug Tap - High Speed Steel
    Special Price $66.71 Regular Price $95.00
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  16. M8 x 1.25 Left-Hand STI Plug Tap - High Speed Steel

    Sku #: 35L7H1-21Z0V-B80H

    M8 x 1.25 Left-Hand STI Plug Tap - High Speed Steel
    Special Price $64.95 Regular Price $92.50
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  17. M8 x 1 Left-Hand STI Plug Tap - High Speed Steel

    Sku #: 35L7H1-21Z0V-B80F

    M8 x 1 Left-Hand STI Plug Tap - High Speed Steel
    Special Price $64.95 Regular Price $92.50
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  18. M6 x 1 Left-Hand STI Plug Tap - High Speed Steel

    Sku #: 35L7H1-21Z0V-B60F

    M6 x 1 Left-Hand STI Plug Tap - High Speed Steel
    Special Price $56.18 Regular Price $80.00
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  19. 1-14 Left-Hand STI Plug Tap - High Speed Steel

    Sku #: 35L7H1-21Z0D-100S

    1-14 Left-Hand STI Plug Tap - High Speed Steel
    Special Price $279.38 Regular Price $420.00
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  20. 1-8 Left-Hand STI Plug Tap - High Speed Steel

    Sku #: 35L7H1-21Z0B-100

    1-8 Left-Hand STI Plug Tap - High Speed Steel
    Special Price $279.38 Regular Price $420.00
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  21. 7/8-14 Left-Hand STI Plug Tap - High Speed Steel

    Sku #: 35L7H1-21Z0C-087

    7/8-14 Left-Hand STI Plug Tap - High Speed Steel
    Special Price $212.03 Regular Price $318.75
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  22. 7/8-9 Left-Hand STI Plug Tap - High Speed Steel

    Sku #: 35L7H1-21Z0B-087

    7/8-9 Left-Hand STI Plug Tap - High Speed Steel
    Special Price $212.03 Regular Price $318.75
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  23. 3/4-16 Left-Hand STI Plug Tap - High Speed Steel

    Sku #: 35L7H1-21Z0C-075

    3/4-16 Left-Hand STI Plug Tap - High Speed Steel
    Special Price $157.64 Regular Price $224.50
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  24. 3/4-10 Left-Hand STI Plug Tap - High Speed Steel

    Sku #: 35L7H1-21Z0B-075

    3/4-10 Left-Hand STI Plug Tap - High Speed Steel
    Special Price $157.64 Regular Price $224.50
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  25. 5/8-18 Left-Hand STI Plug Tap - High Speed Steel

    Sku #: 35L7H1-21Z0C-062

    5/8-18 Left-Hand STI Plug Tap - High Speed Steel
    Special Price $107.09 Regular Price $152.50
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  26. 5/8-11 Left-Hand STI Plug Tap - High Speed Steel

    Sku #: 35L7H1-21Z0B-062

    5/8-11 Left-Hand STI Plug Tap - High Speed Steel
    Special Price $107.09 Regular Price $152.50
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  27. 9/16-18 Left-Hand STI Plug Tap - High Speed Steel

    Sku #: 35L7H1-21Z0C-056

    9/16-18 Left-Hand STI Plug Tap - High Speed Steel
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  28. 1/2-20 Left-Hand STI Plug Tap - High Speed Steel

    Sku #: 35L7H1-21Z0C-050

    1/2-20 Left-Hand STI Plug Tap - High Speed Steel
    Special Price $93.04 Regular Price $132.50
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  29. 1/2-13 Left-Hand STI Plug Tap - High Speed Steel

    Sku #: 35L7H1-21Z0B-050

    1/2-13 Left-Hand STI Plug Tap - High Speed Steel
    Special Price $93.04 Regular Price $132.50
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  30. 7/16-20 Left-Hand STI Plug Tap - High Speed Steel

    Sku #: 35L7H1-21Z0C-043

    7/16-20 Left-Hand STI Plug Tap - High Speed Steel
    Special Price $91.29 Regular Price $130.01
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