Thinwall Industrial Style Keylocking Inserts
Jergens Thinwall Industrial Style Keylocking Inserts are used to quickly repair stripped, damaged, or worn-out threads. They are also used in original equipment where they strengthen threads in soft metals like magnesium or aluminum. Our threaded inserts are easy to install and remove. No specialty drills, taps, or pre-winder tools are required. The keys are driven down into the threads of the surrounding base material, locking the insert in place.
Features, Benefits, & Product Specifications:
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Insert Materials & Finishes:
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Carbon Steel (C1215 or Equivalent), Parkerized
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303 Stainless Steel, Passivated
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Key Material: 302 Stainless Steel
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Tolerances: ±0.010 for Inch, ±0.25mm for Metric
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Inserts with internal thread size of 5/16-18 or larger are furnished with (4) locking keys
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Special materials, sizes, and Mil-Spec available upon request
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RoHS compliant
Thinwall Industrial Style Keylocking Inserts

Select a part number for CAD drawings, price and stock availability.
Part Number | CAD | Unit | Material | Internal Thread Class 2B | External Thread | Length (L) | Installation Tool Part Number |
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25921 |
|
Inch | Carbon Steel | 10-24 | 5/16-18 | 0.31 | 24721 |
25922 |
|
Inch | Carbon Steel | 1/4-20 | 3/8-16 | 0.37 | 24722 |
25923 |
|
Inch | Carbon Steel | 5/16-18 | 7/16-14 | 0.43 | 24723 |
25924 |
|
Inch | Carbon Steel | 3/8-16 | 1/2-13 | 0.50 | 24724 |
25925 |
|
Inch | Carbon Steel | 7/16-14 | 9/16-12 | 0.56 | 24725 |
25926 |
|
Inch | Carbon Steel | 1/2-13 | 5/8-11 | 0.62 | 24726 |
26121 |
|
Inch | Carbon Steel | 10-32 | 5/16-18 | 0.31 | 24721 |
26122 |
|
Inch | Carbon Steel | 1/4-28 | 3/8-16 | 0.37 | 24722 |
26123 |
|
Inch | Carbon Steel | 5/16-24 | 7/16-14 | 0.43 | 24723 |
26124 |
|
Inch | Carbon Steel | 3/8-24 | 1/2-13 | 0.50 | 24724 |
26125 |
|
Inch | Carbon Steel | 7/16-20 | 9/16-12 | 0.56 | 24725 |
26126 |
|
Inch | Carbon Steel | 1/2-20 | 5/8-11 | 0.62 | 24726 |
26321 |
|
Inch | Stainless Steel | 10-24 | 5/16-18 | 0.31 | 24721 |
26322 |
|
Inch | Stainless Steel | 1/4-20 | 3/8-16 | 0.37 | 24722 |
26323 |
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Inch | Stainless Steel | 5/16-18 | 7/16-14 | 0.43 | 24723 |
26324 |
|
Inch | Stainless Steel | 3/8-16 | 1/2-13 | 0.50 | 24724 |
26325 |
|
Inch | Stainless Steel | 7/16-14 | 9/16-12 | 0.56 | 24725 |
26326 |
|
Inch | Stainless Steel | 1/2-13 | 5/8-11 | 0.62 | 24726 |
26521 |
|
Inch | Stainless Steel | 10-32 | 5/16-18 | 0.31 | 24721 |
26522 |
|
Inch | Stainless Steel | 1/4-28 | 3/8-16 | 0.37 | 24722 |
26523 |
|
Inch | Stainless Steel | 5/16-24 | 7/16-14 | 0.43 | 24723 |
26524 |
|
Inch | Stainless Steel | 3/8-24 | 1/2-13 | 0.50 | 24724 |
26525 |
|
Inch | Stainless Steel | 7/16-20 | 9/16-12 | 0.56 | 24725 |
26526 |
|
Inch | Stainless Steel | 1/2-20 | 5/8-11 | 0.62 | 24726 |
Part Number | CAD | Unit | Material | Insert Internal Thread Class 6H | Insert External Thread Class 6g | Installation Length (L) | Installation Tool Part Number | Tap Drill Size | C-Sink Diameter +0.25/-0.00 | Thread Tap Size Class 6h | Thread Tap Minimum Depth | Removal Drill Size | Removal Drill Depth |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
25951 |
|
Metric | Carbon Steel | M5 x 0.8 | M8 x 1.25 | 8.0 | 24751 | 6.9 | 8.25 | M8 x 1.25 | 9.5 | 5.50 | 4.00 |
25952 |
|
Metric | Carbon Steel | M6 x 1.0 | M10 x 1.25 | 10.0 | 24752 | 8.8 | 10.25 | M10 x 1.25 | 11.5 | 7.50 | 4.75 |
25953 |
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Metric | Carbon Steel | M8 x 1.25 | M12 x 1.25 | 12.0 | 24753 | 10.8 | 12.25 | M12 x 1.25 | 13.5 | 9.50 | 4.75 |
25955 |
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Metric | Carbon Steel | M10 x 1.5 | M14 x 1.5 | 14.0 | 24755 | 12.8 | 14.25 | M14 x 1.5 | 15.5 | 11.50 | 4.75 |
25956 |
|
Metric | Carbon Steel | M12 x 1.75 | M16 x 1.5 | 16.0 | 24756 | 14.75 | 16.25 | M16 x 1.5 | 17.5 | 13.50 | 4.75 |
26153 |
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Metric | Carbon Steel | M8 x 1.0 | M12 x 1.25 | 12.0 | 24753 | 10.8 | 12.25 | M12 x 1.25 | 13.5 | 9.50 | 4.75 |
26155 |
|
Metric | Carbon Steel | M10 x 1.25 | M14 x 1.5 | 14.0 | 24755 | 12.8 | 14.25 | M14 x 1.5 | 15.5 | 11.50 | 4.75 |
26156 |
|
Metric | Carbon Steel | M12 x 1.25 | M16 x 1.5 | 16.0 | 24756 | 14.75 | 16.25 | M16 x 1.5 | 17.5 | 13.50 | 4.75 |
26351 |
|
Metric | Stainless Steel | M5 x 0.8 | M8 x 1.25 | 8.0 | 24751 | 6.9 | 8.25 | M8 x 1.25 | 9.5 | 5.50 | 4.00 |
26352 |
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Metric | Stainless Steel | M6 x 1.0 | M10 x 1.25 | 10.0 | 24752 | 8.8 | 10.25 | M10 x 1.25 | 11.5 | 7.50 | 4.75 |
26353 |
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Metric | Stainless Steel | M8 x 1.25 | M12 x 1.25 | 12.0 | 24753 | 10.8 | 12.25 | M12 x 1.25 | 13.5 | 9.50 | 4.75 |
26355 |
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Metric | Stainless Steel | M10 x 1.5 | M14 x 1.5 | 14.0 | 24755 | 12.8 | 14.25 | M14 x 1.5 | 15.5 | 11.50 | 4.75 |
26356 |
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Metric | Stainless Steel | M12 x 1.75 | M16 x 1.5 | 16.0 | 24756 | 14.75 | 16.25 | M16 x 1.5 | 17.5 | 13.50 | 4.75 |
26553 |
|
Metric | Stainless Steel | M8 x 1.0 | M12 x 1.25 | 12.0 | 24753 | 10.8 | 12.25 | M12 x 1.25 | 13.5 | 9.50 | 4.75 |
26555 |
|
Metric | Stainless Steel | M10 x 1.25 | M14 x 1.5 | 14.0 | 24755 | 12.8 | 14.25 | M14 x 1.5 | 15.5 | 11.50 | 4.75 |
26556 |
|
Metric | Stainless Steel | M12 x 1.25 | M16 x 1.5 | 16.0 | 24756 | 14.75 | 16.25 | M16 x 1.5 | 17.5 | 13.50 | 4.75 |
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