System of Measurement System of Measurement |
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Thread Size Thread Size | Show |
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Thread Size Thread Size | Hide |
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Thread Type Thread Type |
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Thread Direction Thread Direction |
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| Right Hand | Left Hand |
Material Material |
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For Minimum Material Thickness For MinimumMaterial Thickness |
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Thread Spacing Thread Spacing |
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Specifications Met Specifications Met |
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Helical Insert Style Helical Insert Style |
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For Maximum Hole Diameter For Maximum Hole Diameter |
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For Tap Type For Tap Type |
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Passivation Passivation |
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Tensile Strength Tensile Strength |
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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 | Closed-End Hole Taps | Installation Tools | Prong Break-Off Tools | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Thread Size | Installed Lg. | Drill Bit Size | For Max. Hole Dia. | Specifications Met | Pkg. Qty. | Pkg. | Each | Each | Each | Each | |||||
18-8 Stainless Steel—Right-Hand Threaded | |||||||||||||||
| 1/2"-13 | 1/2" | 17/32" | 17/32" | MS122-085 | 10 | 000000000 | 00000 | 000000000 | 000000 | 000000000 | 000000 | 000000000 | 0000000 | 000000000 | 0000000 |
| 1/2"-13 | 3/4" | 17/32" | 17/32" | MS122-125 | 5 | 000000000 | 0000 | 000000000 | 00000 | 000000000 | 00000 | 000000000 | 000000 | 000000000 | 000000 |
| 1/2"-13 | 1" | 17/32" | 17/32" | MS122-165 | 5 | 000000000 | 00000 | 000000000 | 00000 | 000000000 | 00000 | 000000000 | 000000 | 000000000 | 000000 |
| 1/2"-13 | 1 1/4" | 17/32" | 17/32" | MS122-205 | 5 | 000000000 | 00000 | 000000000 | 00000 | 000000000 | 00000 | 000000000 | 000000 | 000000000 | 000000 |
| 1/2"-13 | 1 1/2" | 33/64" | 33/64" | MS122-245 | 5 | 000000000 | 00000 | 000000000 | 00000 | 000000000 | 00000 | 000000000 | 000000 | 000000000 | 000000 |
18-8 Stainless Steel—Left-Hand Threaded | |||||||||||||||
| 1/2"-13 | 3/4" | 17/32" | 17/32" | __ | 1 | 000000000 | 0000 | 000000000 | 00000 | 000000 | 00 | 000000000 | 00000 | 000000000 | 000000 |
Stainless Steel Screw-Locking Helical Inserts
A distorted thread grips the screw to resist loosening. 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 | Closed-End Hole Taps | Installation Tools | Prong Break-Off Tools | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Thread Size | Installed Lg. | Drill Bit Size | For Max. Hole Dia. | Specifications Met | Pkg. Qty. | Pkg. | Each | Each | Each | Each | |||||
18-8 Stainless Steel | |||||||||||||||
| 1/2"-13 | 1/2" | 17/32" | 17/32" | MS21209-C8-10 | 5 | 000000000 | 00000 | 000000000 | 000000 | 000000000 | 000000 | 000000000 | 0000000 | 000000000 | 0000000 |
| 1/2"-13 | 3/4" | 17/32" | 17/32" | MS21209-C8-15 | 5 | 000000000 | 0000 | 000000000 | 00000 | 000000000 | 00000 | 000000000 | 000000 | 000000000 | 000000 |
| 1/2"-13 | 1" | 17/32" | 17/32" | MS21209-C8-20 | 1 | 000000000 | 0000 | 000000000 | 00000 | 000000000 | 00000 | 000000000 | 000000 | 000000000 | 000000 |
| 1/2"-13 | 1 1/4" | 17/32" | 17/32" | MS21209-C8-25 | 1 | 000000000 | 0000 | 000000000 | 00000 | 000000000 | 00000 | 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.
| Thread Size | Installed Lg. | Drill Bit Size | For Max. Hole Dia. | No. of Inserts Included | Includes | Each | |
18-8 Stainless Steel—Right-Hand Threaded | |||||||
|---|---|---|---|---|---|---|---|
| 1/2"-13 | 1/2" | 17/32" | 17/32" | 10 | Drill Bit, Through-Hole Tap, Installation Tool | 000000000 | 000000 |
| 1/2"-13 | 3/4" | 17/32" | 17/32" | 5 | Drill Bit, Through-Hole Tap, Installation Tool | 000000000 | 00000 |
| 1/2"-13 | 1" | 17/32" | 17/32" | 5 | Drill Bit, Through-Hole Tap, Installation Tool | 000000000 | 00000 |
18-8 Stainless Steel—Left-Hand Threaded | |||||||
| 1/2"-13 | 3/4" | 17/32" | 17/32" | 4 | Through-Hole Tap, Installation Tool | 000000000 | 000000 |
Helical Insert Assortments with Installation Tools
Assortments include various sizes of helical inserts and a tap, a drill bit, and an installation tool for each thread size. Also known as Heli-Coil inserts, the 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.
| Includes | No. of Inserts Included | Thread Spacing | Drill Bit Size | For Max. Hole Dia. | Each | |
Inch | ||||||
|---|---|---|---|---|---|---|
18-8 Stainless Steel | ||||||
| 1/4"-20 Thread × 3/8" Installed Lg. (12 Each) 5/16"-18 Thread × 0.469" Installed Lg. (12 Each) 3/8"-16 Thread × 0.562" Installed Lg. (12 Each) 7/16"-14 Thread × 0.656" Installed Lg. (6 Each) 1/2"-13 Thread × 3/4" Installed Lg. (6 Each) 5/8"-11 Thread × 15/16" Installed Lg. (6 Each) Drill Bits Through-Hole Taps Installation Tools | 54 | Coarse | 17/64" 21/64" 25/64" 29/64" 17/32" 21/32" | 17/64" 21/64" 25/64" 29/64" 17/32" 21/32" | 000000000 | 0000000 |
| 1/2"-13 Thread × 1/2" Installed Lg. (6 Each) 1/2"-13 Thread × 3/4" Installed Lg. (6 Each) 1/2"-13 Thread × 1" Installed Lg. (6 Each) Drill Bit Through-Hole Tap Installation Tool | 18 | Coarse | 17/32" | 17/32" | 000000000 | 00000 |