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Helical Threaded Inserts

Helical Threaded Inserts – also known as wire or helical threaded inserts – quickly repair or reinforce tapped holes in soft metals. Made from 18-8 stainless steel wire, Helical Threaded Inserts provide strong internal threads that are corrosion resistant and withstand temperatures to 800°F.

Helical Threaded Inserts are made of 18-8 stainless steel wire. The wire is formed into a diamond pattern and then wound into a spring. Before being installed, the insert diameter is larger than the tapped hole. The insert diameter is reduced during installation, allowing the insert to thread into the hole. Once properly installed, the radial pressure of the released insert holds the insert firmly in place.

Helical Threaded Inserts

Features:

  • Quickly repair damaged threads in soft metal
  • Protect tapped holes from stripping and wear
  • Made from corrosion resistant 18-8 stainless steel
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  1. Insert Style Locking Remove This Item
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Insert Style  
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  1. Free-Running 18 items
  2. Locking 8 items
ID Acronym  
  1. UNF 4 items
  2. UNC 4 items
Inside Thread  
  1. 3/8-16 1 item
  2. 3/8-24 1 item
  3. 9/16-12 1 item
  4. 9/16-18 1 item
  5. 3/4-10 1 item
  6. 3/4-16 1 item
  7. 1-1/8-12 1 item
  8. 1-1/8-7 1 item
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Length  
X
  1. 2mm 1 item
  2. 0.086 1 item
  3. 2.2mm 1 item
  4. 2.5mm 1 item
  5. 0.099 2 items
  6. 0.112 2 items
  7. 3mm 2 items
  8. 0.125 1 item
  9. 0.129 1 item
  10. 3.3mm 1 item
  11. 3.5mm 1 item
  12. 0.138 2 items
  13. 0.148 2 items
  14. 3.8mm 1 item
  15. 4mm 2 items
  16. 0.164 2 items
  17. 0.168 2 items
  18. 0.172 1 item
  19. 4.4mm 1 item
  20. 4.5mm 1 item
  21. 0.188 1 item
  22. 0.190 2 items
  23. 5mm 3 items
  24. 0.198 2 items
  25. 0.207 2 items
  26. 5.3mm 1 item
  27. 0.215 1 item
  28. 0.216 2 items
  29. 5.5mm 1 item
  30. 0.224 2 items
  31. 6mm 4 items
  32. 0.246 2 items
  33. 0.248 2 items
  34. 6.3mm 1 item
  35. 0.250 3 items
  36. 0.258 1 item
  37. 6.6mm 1 item
  38. 7mm 2 items
  39. 0.276 2 items
  40. 0.280 2 items
  41. 0.285 2 items
  42. 7.5mm 3 items
  43. 0.297 2 items
  44. 0.312 3 items
  45. 8mm 3 items
  46. 0.324 2 items
  47. 0.328 2 items
  48. 0.336 2 items
  49. 0.345 2 items
  50. 8.8mm 1 item
  51. 9mm 4 items
  52. 0.375 5 items
  53. 0.380 2 items
  54. 10mm 5 items
  55. 0.410 2 items
  56. 10.5mm 2 items
  57. 0.414 2 items
  58. 0.432 2 items
  59. 11mm 3 items
  60. 0.438 2 items
  61. 0.469 2 items
  62. 12mm 8 items
  63. 0.475 2 items
  64. 0.492 2 items
  65. 12.5mm 1 item
  66. 0.500 4 items
  67. 13.5mm 2 items
  68. 0.540 2 items
  69. 14mm 4 items
  70. 0.562 4 items
  71. 0.570 2 items
  72. 15mm 5 items
  73. 0.625 6 items
  74. 16mm 4 items
  75. 0.648 2 items
  76. 16.5mm 3 items
  77. 0.656 2 items
  78. 17.5mm 1 item
  79. 18mm 10 items
  80. 0.750 8 items
  81. 0.781 2 items
  82. 20mm 8 items
  83. 21mm 4 items
  84. 0.844 2 items
  85. 22mm 6 items
  86. 0.875 4 items
  87. 22.5mm 2 items
  88. 0.938 6 items
  89. 24mm 11 items
  90. 25mm 3 items
  91. 1.000 5 items
  92. 27mm 5 items
  93. 27.5mm 3 items
  94. 1.094 2 items
  95. 28mm 3 items
  96. 1.125 8 items
  97. 30mm 10 items
  98. 1.250 6 items
  99. 32mm 2 items
  100. 33mm 6 items
  101. 1.312 4 items
  102. 1.375 2 items
  103. 35mm 3 items
  104. 1.406 2 items
  105. 36mm 10 items
  106. 1.500 9 items
  107. 39mm 1 item
  108. 1.562 2 items
  109. 40mm 5 items
  110. 40.5mm 3 items
  111. 42mm 4 items
  112. 1.688 5 items
  113. 44mm 3 items
  114. 1.750 2 items
  115. 45mm 7 items
  116. 1.875 7 items
  117. 48mm 5 items
  118. 49.5mm 3 items
  119. 50mm 3 items
  120. 2.000 3 items
  121. 51mm 1 item
  122. 2.062 2 items
  123. 2.063 1 item
  124. 54mm 7 items
  125. 55mm 3 items
  126. 2.188 2 items
  127. 2.250 7 items
  128. 58.5mm 2 items
  129. 60mm 6 items
  130. 2.438 1 item
  131. 63mm 3 items
  132. 2.500 5 items
  133. 66mm 3 items
  134. 2.625 3 items
  135. 67.5mm 1 item
  136. 2.750 2 items
  137. 2.812 2 items
  138. 2.813 1 item
  139. 72mm 5 items
  140. 3.000 6 items
  141. 78mm 2 items
  142. 3.125 2 items
  143. 3.188 1 item
  144. 81mm 1 item
  145. 84mm 3 items
  146. 3.375 3 items
  147. 3.438 2 items
  148. 3.563 1 item
  149. 3.750 5 items
  150. 96mm 2 items
  151. 3.906 1 item
  152. 3.938 1 item
  153. 4.063 1 item
  154. 4.125 3 items
  155. 4.219 1 item
  156. 4.313 1 item
  157. 4.330 1 item
  158. 4.500 3 items
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Drill Size  
  1. 0.3906 (25/64) 2 items
  2. 0.5781 (37/64) 1 item
  3. 0.5938 (19/32) 1 item
  4. 0.7656 (49/64) 1 item
  5. 0.7813 (25/32) 1 item
  6. 1.1563 (1-5/32) 2 items
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8 Items

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  1. 3/8-16 UNC x 1.125 WireSert Threaded Insert for Metals - Locking - 18-8 Stainless - 100/pkg

    Sku #: 35L7C-C8JJ-03730-34

    3/8-16 UNC x 1.125 WireSert Threaded Insert for Metals - Locking - 18-8 Stainless - 100/pkg
    Special Price $1.45 Regular Price $1.95
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  2. 9/16-12 UNC x 1.125 WireSert Threaded Insert for Metals - Locking - 18-8 Stainless - 50/pkg

    Sku #: 35L7C-C8JJ-05620-1J

    9/16-12 UNC x 1.125 WireSert Threaded Insert for Metals - Locking - 18-8 Stainless - 50/pkg
    Special Price $2.66 Regular Price $3.58
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  3. 3/4-10 UNC x 1.125 WireSert Threaded Insert for Metals - Locking - 18-8 Stainless - 15/pkg

    Sku #: 35L7C-C8JJ-07515-0F

    3/4-10 UNC x 1.125 WireSert Threaded Insert for Metals - Locking - 18-8 Stainless - 15/pkg
    Special Price $2.36 Regular Price $3.18
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  4. 1-1/8-7 UNC x 1.125 WireSert Threaded Insert for Metals - Locking - 18-8 Stainless - 5/pkg

    Sku #: 35L7C-C8JJ-11210-05

    1-1/8-7 UNC x 1.125 WireSert Threaded Insert for Metals - Locking - 18-8 Stainless - 5/pkg
    Special Price $11.16 Regular Price $15.00
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  5. 3/8-24 UNF x 1.125 WireSert Threaded Insert for Metals - Locking - 18-8 Stainless - 100/pkg

    Sku #: 35L7C-C8K4-03730-34

    3/8-24 UNF x 1.125 WireSert Threaded Insert for Metals - Locking - 18-8 Stainless - 100/pkg
    Special Price $1.82 Regular Price $2.45
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  6. 9/16-18 UNF x 1.125 WireSert Threaded Insert for Metals - Locking - 18-8 Stainless - 50/pkg

    Sku #: 35L7C-C8K4-05620-1J

    9/16-18 UNF x 1.125 WireSert Threaded Insert for Metals - Locking - 18-8 Stainless - 50/pkg
    Special Price $1.64 Regular Price $2.20
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  7. 3/4-16 UNF x 1.125 WireSert Threaded Insert for Metals - Locking - 18-8 Stainless - 15/pkg

    Sku #: 35L7C-C8K4-07515-0F

    3/4-16 UNF x 1.125 WireSert Threaded Insert for Metals - Locking - 18-8 Stainless - 15/pkg
    Special Price $2.42 Regular Price $3.25
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  8. 1-1/8-12 UNF x 1.125 WireSert Threaded Insert for Metals - Locking - 18-8 Stainless - 5/pkg

    Sku #: 35L7C-C8K4-11210-05

    1-1/8-12 UNF x 1.125 WireSert Threaded Insert for Metals - Locking - 18-8 Stainless - 5/pkg
    Special Price $7.85 Regular Price $10.55
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  1. Insert Style Locking Remove This Item
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Insert Style
  1. Free-Running 18 items
  2. Locking 8 items
ID Acronym
  1. UNF 4 items
  2. UNC 4 items
Inside Thread
  1. 3/8-16 1 item
  2. 3/8-24 1 item
  3. 9/16-12 1 item
  4. 9/16-18 1 item
  5. 3/4-10 1 item
  6. 3/4-16 1 item
  7. 1-1/8-12 1 item
  8. 1-1/8-7 1 item
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Length
  1. 2mm 1 item
  2. 0.086 1 item
  3. 2.2mm 1 item
  4. 2.5mm 1 item
  5. 0.099 2 items
  6. 0.112 2 items
  7. 3mm 2 items
  8. 0.125 1 item
  9. 0.129 1 item
  10. 3.3mm 1 item
  11. 3.5mm 1 item
  12. 0.138 2 items
  13. 0.148 2 items
  14. 3.8mm 1 item
  15. 4mm 2 items
  16. 0.164 2 items
  17. 0.168 2 items
  18. 0.172 1 item
  19. 4.4mm 1 item
  20. 4.5mm 1 item
  21. 0.188 1 item
  22. 0.190 2 items
  23. 5mm 3 items
  24. 0.198 2 items
  25. 0.207 2 items
  26. 5.3mm 1 item
  27. 0.215 1 item
  28. 0.216 2 items
  29. 5.5mm 1 item
  30. 0.224 2 items
  31. 6mm 4 items
  32. 0.246 2 items
  33. 0.248 2 items
  34. 6.3mm 1 item
  35. 0.250 3 items
  36. 0.258 1 item
  37. 6.6mm 1 item
  38. 7mm 2 items
  39. 0.276 2 items
  40. 0.280 2 items
  41. 0.285 2 items
  42. 7.5mm 3 items
  43. 0.297 2 items
  44. 0.312 3 items
  45. 8mm 3 items
  46. 0.324 2 items
  47. 0.328 2 items
  48. 0.336 2 items
  49. 0.345 2 items
  50. 8.8mm 1 item
  51. 9mm 4 items
  52. 0.375 5 items
  53. 0.380 2 items
  54. 10mm 5 items
  55. 0.410 2 items
  56. 10.5mm 2 items
  57. 0.414 2 items
  58. 0.432 2 items
  59. 11mm 3 items
  60. 0.438 2 items
  61. 0.469 2 items
  62. 12mm 8 items
  63. 0.475 2 items
  64. 0.492 2 items
  65. 12.5mm 1 item
  66. 0.500 4 items
  67. 13.5mm 2 items
  68. 0.540 2 items
  69. 14mm 4 items
  70. 0.562 4 items
  71. 0.570 2 items
  72. 15mm 5 items
  73. 0.625 6 items
  74. 16mm 4 items
  75. 0.648 2 items
  76. 16.5mm 3 items
  77. 0.656 2 items
  78. 17.5mm 1 item
  79. 18mm 10 items
  80. 0.750 8 items
  81. 0.781 2 items
  82. 20mm 8 items
  83. 21mm 4 items
  84. 0.844 2 items
  85. 22mm 6 items
  86. 0.875 4 items
  87. 22.5mm 2 items
  88. 0.938 6 items
  89. 24mm 11 items
  90. 25mm 3 items
  91. 1.000 5 items
  92. 27mm 5 items
  93. 27.5mm 3 items
  94. 1.094 2 items
  95. 28mm 3 items
  96. 1.125 8 items
  97. 30mm 10 items
  98. 1.250 6 items
  99. 32mm 2 items
  100. 33mm 6 items
  101. 1.312 4 items
  102. 1.375 2 items
  103. 35mm 3 items
  104. 1.406 2 items
  105. 36mm 10 items
  106. 1.500 9 items
  107. 39mm 1 item
  108. 1.562 2 items
  109. 40mm 5 items
  110. 40.5mm 3 items
  111. 42mm 4 items
  112. 1.688 5 items
  113. 44mm 3 items
  114. 1.750 2 items
  115. 45mm 7 items
  116. 1.875 7 items
  117. 48mm 5 items
  118. 49.5mm 3 items
  119. 50mm 3 items
  120. 2.000 3 items
  121. 51mm 1 item
  122. 2.062 2 items
  123. 2.063 1 item
  124. 54mm 7 items
  125. 55mm 3 items
  126. 2.188 2 items
  127. 2.250 7 items
  128. 58.5mm 2 items
  129. 60mm 6 items
  130. 2.438 1 item
  131. 63mm 3 items
  132. 2.500 5 items
  133. 66mm 3 items
  134. 2.625 3 items
  135. 67.5mm 1 item
  136. 2.750 2 items
  137. 2.812 2 items
  138. 2.813 1 item
  139. 72mm 5 items
  140. 3.000 6 items
  141. 78mm 2 items
  142. 3.125 2 items
  143. 3.188 1 item
  144. 81mm 1 item
  145. 84mm 3 items
  146. 3.375 3 items
  147. 3.438 2 items
  148. 3.563 1 item
  149. 3.750 5 items
  150. 96mm 2 items
  151. 3.906 1 item
  152. 3.938 1 item
  153. 4.063 1 item
  154. 4.125 3 items
  155. 4.219 1 item
  156. 4.313 1 item
  157. 4.330 1 item
  158. 4.500 3 items
Show more
Drill Size
  1. 0.3906 (25/64) 2 items
  2. 0.5781 (37/64) 1 item
  3. 0.5938 (19/32) 1 item
  4. 0.7656 (49/64) 1 item
  5. 0.7813 (25/32) 1 item
  6. 1.1563 (1-5/32) 2 items
Show more