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Thread Repair Inserts

966 products found

Use thread repair inserts to fix a stripped bolt or screw thread or to install a strong, permanent threaded hole in metals, composites, wood or other materials. Helical inserts have a wired coil design. When inserted into a tapped hole with an installation tool, the coil expands to anchor the insert in place. In addition to thread repair, an insert can be used to convert a standard threaded hole to accept metric fasteners, or vice versa. Whether the task is repair, maintenance or assembly, Grainger has the thread repair insert you need.Close

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  • 30mm 304 Stainless Steel Helical Insert, M20 x 2.5 Internal Thread; PK4

    Brand
    HELI-COIL
    Item #
    4EYK9
    Mfr. Model #
    R1084-20
    30mm 304 Stainless Steel Helical Insert, M20 x 2.5 Int
    Web Price $24.82 / pkg. of 4
  • 0.375" 304 Stainless Steel Helical Insert, 1/4-20 Internal Thread; PK12

    Brand
    HELI-COIL
    Item #
    4EYH5
    Mfr. Model #
    R1185-4
    0.375" 304 Stainless Steel Helical Insert, 1/4-20 Inte
    Web Price $9.58 / pkg. of 12
  • 0.375" 304 Stainless Steel Helical Insert, 1/4-20 Internal Thread; PK100

    Brand
    HELI-COIL
    Item #
    4CZW9
    Mfr. Model #
    A1185-4CN375
    0.375" 304 Stainless Steel Helical Insert, 1/4-20 Inte
    Web Price $37.08 / pkg. of 100
  • 6mm 304 Stainless Steel Helical Insert, M4 x 0.7 Internal Thread; PK100

    Brand
    HELI-COIL
    Item #
    4DAL3
    Mfr. Model #
    A1084-4CN060
    6mm 304 Stainless Steel Helical Insert, M4 x 0.7 Inter
    Web Price $24.57 / pkg. of 100
  • 0.285" 304 Stainless Steel Helical Insert, 10-32 Internal Thread; PK100

    Brand
    HELI-COIL
    Item #
    4CZY8
    Mfr. Model #
    A1191-3CN285
    0.285" 304 Stainless Steel Helical Insert, 10-32 Internal&#
    Web Price $39.35 / pkg. of 100
  • 4mm 304 Stainless Steel Helical Insert, M4 x 0.7 Internal Thread; PK100

    Brand
    HELI-COIL
    Item #
    4DAL1
    Mfr. Model #
    A1084-4CN040
    4mm 304 Stainless Steel Helical Insert, M4 x 0.7 Inter
    Web Price $34.09 / pkg. of 100
  • 0.276" 304 Stainless Steel Helical Insert, 6-32 Internal Thread; PK10

    Brand
    GRAINGER APPROVED
    Item #
    5UTY8
    Mfr. Model #
    3532-6GX2.0D
    0.276" 304 Stainless Steel Helical Insert, 6-32 Internal&#x
    Web Price $7.11 / pkg. of 10
  • 20mm 304 Stainless Steel Helical Insert, M8 x 1.25 Internal Thread; PK100

    Brand
    HELI-COIL
    Item #
    4DAY7
    Mfr. Model #
    A1084-8CN200
    20mm 304 Stainless Steel Helical Insert, M8 x 1.25 Int
    Web Price $62.83 / pkg. of 100
  • 0.375" 304 Stainless Steel Helical Insert, 3/8-16 Internal Thread; PK10

    Brand
    GRAINGER APPROVED
    Item #
    5UUA3
    Mfr. Model #
    3532-3/8X1.0D
    0.375" 304 Stainless Steel Helical Insert, 3/8-16 Inte
    Web Price $7.16 / pkg. of 10
  • 0.750" 304 Stainless Steel Helical Insert, 1/2-13 Internal Thread; PK10

    Brand
    GRAINGER APPROVED
    Item #
    5UUC0
    Mfr. Model #
    3532-1/2x1.5D
    0.750" 304 Stainless Steel Helical Insert, 1/2-13 Inte
    Web Price $13.44 / pkg. of 10
  • 0.375" 304 Stainless Steel Helical Insert, 1/4-20 Internal Thread; PK10

    Brand
    GRAINGER APPROVED
    Item #
    5UTZ8
    Mfr. Model #
    3532-1/4X1.5D
    0.375" 304 Stainless Steel Helical Insert, 1/4-20 Inte
    Web Price $5.46 / pkg. of 10
  • 16mm 304 Stainless Steel Helical Insert, M16 x 2 Internal Thread; PK1

    Brand
    GRAINGER APPROVED
    Item #
    5WZR4
    Mfr. Model #
    3520-16.00X1.0D
    16mm 304 Stainless Steel Helical Insert, M16 x 2 Inter
    Web Price $1.71 / each
  • 8mm 304 Stainless Steel Helical Insert, M8 x 1.25 Internal Thread; PK10

    Brand
    GRAINGER APPROVED
    Item #
    5WZN3
    Mfr. Model #
    3520-8.00X1.0D
    8mm 304 Stainless Steel Helical Insert, M8 x 1.25 Inte
    Web Price $11.23 / pkg. of 10
  • 0.469" 304 Stainless Steel Helical Insert, 5/16-18 Internal Thread; PK12

    Brand
    HELI-COIL
    Item #
    4EYJ3
    Mfr. Model #
    R1185-5
    0.469" 304 Stainless Steel Helical Insert, 5/16-18 Int
    Web Price $16.58 / pkg. of 12
  • 0.938" 304 Stainless Steel Helical Insert, 5/8-18 Internal Thread; PK6

    Brand
    HELI-COIL
    Item #
    4EYJ4
    Mfr. Model #
    R1191-10
    0.938" 304 Stainless Steel Helical Insert, 5/8-18 Inte
    Web Price $29.05 / pkg. of 6
  • 0.750" 304 Stainless Steel Helical Insert, 3/8"-16 Internal Thread; PK100

    Brand
    HELI-COIL
    Item #
    4DAA4
    Mfr. Model #
    A1185-6CN750
    0.750" 304 Stainless Steel Helical Insert, 3/8"-16
    Web Price $75.70 / pkg. of 100
  • 0.285" 304 Stainless Steel Helical Insert, 10-24 Internal Thread; PK12

    Brand
    HELI-COIL
    Item #
    4EYH7
    Mfr. Model #
    R1185-3
    0.285" 304 Stainless Steel Helical Insert, 10-24 Internal&#
    Web Price $12.05 / pkg. of 12
  • 24mm 304 Stainless Steel Helical Insert, M16 x 2 Internal Thread; PK6

    Brand
    HELI-COIL
    Item #
    4EYK7
    Mfr. Model #
    R1084-16
    24mm 304 Stainless Steel Helical Insert, M16 x 2 Inter
    Web Price $29.05 / pkg. of 6
  • 0.375" 304 Stainless Steel Helical Insert, 3/8-16 Internal Thread; PK100

    Brand
    HELI-COIL
    Item #
    4DAA2
    Mfr. Model #
    A1185-6CN375
    0.375" 304 Stainless Steel Helical Insert, 3/8-16 Inte
    Web Price $49.65 / pkg. of 100
  • 21mm 304 Stainless Steel Helical Insert, M14 x 1.5 Internal Thread; PK6

    Brand
    HELI-COIL
    Item #
    4EYK5
    Mfr. Model #
    R3745-14
    21mm 304 Stainless Steel Helical Insert, M14 x 1.5 Int
    Web Price $22.40 / pkg. of 6
  • 5mm 304 Stainless Steel Helical Insert, M5 x 0.8 Internal Thread; PK100

    Brand
    HELI-COIL
    Item #
    4DAP9
    Mfr. Model #
    A1084-5CN050
    5mm 304 Stainless Steel Helical Insert, M5 x 0.8 Inter
    Web Price $34.09 / pkg. of 100
  • 8mm 304 Stainless Steel Helical Insert, M8 x 1.25 Internal Thread; PK100

    Brand
    HELI-COIL
    Item #
    4DAY1
    Mfr. Model #
    A1084-8CN080
    8mm 304 Stainless Steel Helical Insert, M8 x 1.25 Inte
    Web Price $42.13 / pkg. of 100
  • 0.500" 304 Stainless Steel Helical Insert, M10 x 1 Internal Thread; PK6

    Brand
    HELI-COIL
    Item #
    4CZD7
    Mfr. Model #
    R474-4
    0.500" 304 Stainless Steel Helical Insert, M10 x 1
    Web Price $13.29 / pkg. of 6
  • 1.125" 304 Stainless Steel Helical Insert, 3/4-10 Internal Thread; PK4

    Brand
    HELI-COIL
    Item #
    4EYG4
    Mfr. Model #
    R1185-12
    1.125" 304 Stainless Steel Helical Insert, 3/4-10 Inte
    Web Price $26.47 / pkg. of 4
  • 9mm 304 Stainless Steel Helical Insert, M6 x 1 Internal Thread; PK12

    Brand
    HELI-COIL
    Item #
    4EYL4
    Mfr. Model #
    R1084-6
    9mm 304 Stainless Steel Helical Insert, M6 x 1 Interna
    Web Price $11.12 / pkg. of 12
  • 0.562" 304 Stainless Steel Helical Insert, 3/8-16 Internal Thread; PK12

    Brand
    HELI-COIL
    Item #
    4EYJ1
    Mfr. Model #
    R1185-6
    0.562" 304 Stainless Steel Helical Insert, 3/8-16 Inte
    Web Price $21.12 / pkg. of 12
  • 18mm 304 Stainless Steel Helical Insert, M12 x 1.5 Internal Thread; PK6

    Brand
    HELI-COIL
    Item #
    4EYK3
    Mfr. Model #
    R3745-12
    18mm 304 Stainless Steel Helical Insert, M12 x 1.5 Int
    Web Price $14.47 / pkg. of 6
  • 0.500" 304 Stainless Steel Helical Insert, 1/4-20 Internal Thread; PK100

    Brand
    HELI-COIL
    Item #
    4CZX1
    Mfr. Model #
    A1185-4CN500
    0.500" 304 Stainless Steel Helical Insert, 1/4-20 Inte
    Web Price $44.29 / pkg. of 100
  • 0.938" 304 Stainless Steel Helical Insert, 5/8-11 Internal Thread; PK6

    Brand
    HELI-COIL
    Item #
    4EYG6
    Mfr. Model #
    R1185-10
    0.938" 304 Stainless Steel Helical Insert, 5/8-11 Inte
    Web Price $28.94 / pkg. of 6
  • 0.750" 304 Stainless Steel Helical Insert, 1/2-13 Internal Thread; PK6

    Brand
    HELI-COIL
    Item #
    4EYH2
    Mfr. Model #
    R1185-8
    0.750" 304 Stainless Steel Helical Insert, 1/2-13 Inte
    Web Price $15.35 / pkg. of 6
  • 12mm 304 Stainless Steel Helical Insert, M8 x 1.25 Internal Thread; PK12

    Brand
    HELI-COIL
    Item #
    4EYL6
    Mfr. Model #
    R1084-8
    12mm 304 Stainless Steel Helical Insert, M8 x 1.25 Int
    Web Price $15.19 / pkg. of 12
  • 0.190" 304 Stainless Steel Helical Insert, 10-32 Internal Thread; PK10

    Brand
    GRAINGER APPROVED
    Item #
    5UUD8
    Mfr. Model #
    3534-10GX1.0D
    0.190" 304 Stainless Steel Helical Insert, 10-32 Internal&#
    Web Price $5.05 / pkg. of 10
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