How to Install Helical Inserts
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About Helical Insert Length
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How to Install Key-Locking Inserts
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Black-Phosphate Steel Key-Locking Inserts
A black-phosphate finish provides mild corrosion resistance. Drive the keys into the surrounding material for a more secure hold than thread-locking inserts. Use them to repair or change threads in soft metals such as aluminum. They’re comparable to Keensert® inserts. Installation requires a drill bit, a standard tap, an installation tool, and a hammer.
Choose inserts with a thick wall for greater strength than thin-wall inserts, or to fill a large hole with stripped threads.
For technical drawings and 3-D models, click on a part number.
Stainless Steel Helical Inserts
Also known as Heli-Coil inserts, these inserts have coils that expand once installed to securely anchor the insert. All have a prong for ease of installation. An installation tool grips the prong and reduces the coil diameter, enabling the insert to fit in tapped holes. Remove the prong to insert the screw. Installation requires a drill bit, a helical insert tap, an installation tool, and a prong break-off tool.
For technical drawings and 3-D models, click on a part number.
Helical Inserts with Installation Tools
Inserts come with a through-hole tap and installation tool. Also known as Heli-Coil inserts, they have coils that expand once installed to securely anchor the insert. All have a prong for ease of installation. An installation tool grips the prong and reduces the coil diameter, enabling the insert to fit in tapped holes. Remove the prong to insert the screw.
| Thread Size  | Installed Lg. | Drill Bit Size | For Max. Hole Dia. | No. of Inserts Included | Includes | Each | |
18-8 Stainless Steel—Right-Hand Threaded | |||||||
|---|---|---|---|---|---|---|---|
| 1 1/2"-12 | 2 1/4" | 1 17/32" | 1 17/32" | 4 | Drill Bit, Through-Hole Tap, Installation Tool | 000000000 | 000000000 |
Installation Tools for Key-Locking Inserts
Place the tip of these tools into an insert and strike them with a hammer to drive the keys into the material. They’re compatible with Keensert® inserts.
For technical drawings and 3-D models, click on a part number.
| For Thread Size | For Tap Thread Size | Each | |
For Thick-Wall Inserts | |||
|---|---|---|---|
| 1 1/2"-6, 1 1/2"-12 | 1 7/8"-12 | 000000000 | 0000000 |
Extraction Tools for Helical Inserts
Place the tip of these tools into an insert and strike a light blow to the tool’s head. Then turn the tools counterclockwise with pressure to extract the insert.
| For Thread Size | Each | |
| 1 1/8"-7, 1 1/8"-12, 1 1/4"-7, 1 1/4"-8, 1 1/4"-12, 1 3/8"-6, 1 3/8"-12, 1 1/2"-6, 1 1/2"-8, 1 1/2"-12, M27, M30, M36, M39 | 000000000 | 0000000 |
Threaded Caps
Protect externally threaded components from contaminants during fabrication and storage.
Plastic caps resist corrosion better than aluminum caps.
For technical drawings and 3-D models, click on a part number.
Thread | ||||||||
|---|---|---|---|---|---|---|---|---|
| Size | Type | For OD | Inside Ht. | Max. Temp., °F | Color | Pkg. Qty. | Pkg. | |
Plastic | ||||||||
For Straight-Thread Pipe | ||||||||
| 1 1/2"-12 | UNF | 1 1/2" | 3/4" | 150° | Red | 50 | 00000000 | 000000 |