Thread Type Thread Type | Show |
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Material Material |
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Cap Type Cap Type |
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 | Screw On |
Cut Type Cut Type |
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| External Threading | Internal Threading |
System of Measurement System of Measurement |
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Threaded Insert Type Threaded Insert Type |
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 | Helical |
For Maximum Hole Diameter For Maximum Hole Diameter |
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Cut Direction Cut Direction |
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| Right Hand | Left Hand |
RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Helical Insert Style Helical Insert Style |
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For Tap Type For Tap Type |
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For Shape For Shape |
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 | Round |
Thread Direction Thread Direction |
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For Connection Type For Connection Type |
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End Type End Type |
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Passivation Passivation |
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Tensile Strength Tensile Strength |
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For Use In For Use In |
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Profile Profile |
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| Straight |
REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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How to Install Helical Inserts
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About Helical Insert Length
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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.
Inserts | Through-Hole Taps | Installation Tools | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Installed Lg. | Drill Bit Size | For Max. Hole Dia. | Pkg. Qty. | Pkg. | Each | Each | |||
18-8 Stainless Steel—Right-Hand Threaded | ||||||||||
| 1/8 | 0.273" | W | 0.386" | 5 | 000000000 | 000000 | 000000000 | 000000 | 000000000 | 0000000 |
| 1/4 | 0.394" | 33/64" | 33/64" | 5 | 000000000 | 00000 | 000000000 | 00000 | 000000000 | 000000 |
| 3/8 | 0.407" | 21/32" | 21/32" | 1 | 000000000 | 0000 | 000000000 | 00000 | 000000000 | 000000 |
| 1/2 | 0.534" | 13/16" | 13/16" | 1 | 000000000 | 0000 | 000000000 | 000000 | 000000000 | 000000 |
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.
For technical drawings and 3-D models, click on a part number.
| Pipe Size | Installed Lg. | Drill Bit Size | For Max. Hole Dia. | No. of Inserts Included | Includes | Each | |
18-8 Stainless Steel—Right-Hand Threaded | |||||||
|---|---|---|---|---|---|---|---|
| 1/8 | 0.273" | 3/8" | 3/8" | 12 | Drill Bit, Through-Hole Tap, Installation Tool | 000000000 | 0000000 |
| 1/4 | 0.394" | 33/64" | 33/64" | 12 | Drill Bit, Through-Hole Tap, Installation Tool | 000000000 | 000000 |
| 3/8 | 0.407" | 21/32" | 21/32" | 10 | Drill Bit, Through-Hole Tap, Installation Tool | 000000000 | 000000 |
| 1/2 | 0.534" | 13/16" | 13/16" | 10 | Drill Bit, Through-Hole Tap, Installation Tool | 000000000 | 000000 |
High-Performance Threading Carbide Inserts
Install these inserts into a matching holder to cut external or internal threads on a workpiece. They are compatible with top-notch style threading, which uses a highly-rigid clamping design, resulting in a smoother finish and superior tool life. When the first point dulls, flip the insert to use the second point.
NPT thread inserts efficiently machine full-profile NPT threads.
Pair a right-hand insert with a right-hand external holder or a left-hand internal holder. Pair a left-hand insert with a left-hand external holder or a right-hand internal holder.
For technical drawings and 3-D models, click on a part number.
Thread | Threads Per Inch | AC3 Carbide | |||||||||
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| Insert Code | For External Holder Code | For Internal Holder Code | Type | External | Internal | Thick. | Tip Radius | O'all Ht. | For Use On | Each | |
Right Hand | |||||||||||
| DC-3-8VR75 | ASR-103B SR-123B SR-163D | A16-EL3 A24-EL3 | NPT | 8 | 8 | 0.195" | 0.005" | 0.344" | Brass, Bronze, Cast Iron, Stainless Steel | 0000000 | 000000 |
| DC-3-27VR75 | ASR-103B SR-123B SR-163D | A16-EL3 A24-EL3 | NPT | 27 | 27 | 0.195" | 0.002" | 0.344" | Brass, Bronze, Cast Iron, Stainless Steel | 0000000 | 00000 |
| DC-3-18VR75 | ASR-103B SR-123B SR-163D | A16-EL3 A24-EL3 | NPT | 18 | 18 | 0.195" | 0.002" | 0.344" | Brass, Bronze, Cast Iron, Stainless Steel | 0000000 | 00000 |
| DC-3-14VR75 | ASR-103B SR-123B SR-163D | A16-EL3 A24-EL3 | NPT | 14 | 14 | 0.195" | 0.004" | 0.344" | Brass, Bronze, Cast Iron, Stainless Steel | 0000000 | 00000 |
| DC-3-115VR75 | ASR-103B SR-123B SR-163D | A16-EL3 A24-EL3 | NPT | 11 1/2 | 11 1/2 | 0.195" | 0.004" | 0.344" | Brass, Bronze, Cast Iron, Stainless Steel | 0000000 | 00000 |
Left Hand | |||||||||||
| DC-3-8VL75 | ASL-103B SL-123B SL-163D | A16-ER3 A24-ER3 | NPT | 8 | 8 | 0.195" | 0.005" | 0.344" | Brass, Bronze, Cast Iron, Stainless Steel | 0000000 | 00000 |
| DC-3-27VL75 | ASL-103B SL-123B SL-163D | A16-ER3 A24-ER3 | NPT | 27 | 27 | 0.195" | 0.002" | 0.344" | Brass, Bronze, Cast Iron, Stainless Steel | 0000000 | 00000 |
| DC-3-18VL75 | ASL-103B SL-123B SL-163D | A16-ER3 A24-ER3 | NPT | 18 | 18 | 0.195" | 0.002" | 0.344" | Brass, Bronze, Cast Iron, Stainless Steel | 0000000 | 00000 |
| DC-3-14VL75 | ASL-103B SL-123B SL-163D | A16-ER3 A24-ER3 | NPT | 14 | 14 | 0.195" | 0.004" | 0.344" | Brass, Bronze, Cast Iron, Stainless Steel | 0000000 | 00000 |
| DC-3-115VL75 | ASL-103B SL-123B SL-163D | A16-ER3 A24-ER3 | NPT | 11 1/2 | 11 1/2 | 0.195" | 0.004" | 0.344" | Brass, Bronze, Cast Iron, Stainless Steel | 0000000 | 00000 |
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 | ||||||||
|---|---|---|---|---|---|---|---|---|
| Type | Pipe Size | For OD | Inside Ht. | Max. Temp., °F | Color | Pkg. Qty. | Pkg. | |
Plastic | ||||||||
For NPT Tapered-Thread Pipe | ||||||||
| NPT | 3/4 | 1 1/32" | 3/4" | 150° | Red | 100 | 0000000 | 000000 |