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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Material Material |
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For Minimum Panel Thickness For MinimumPanel Thickness |
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Thread Direction Thread Direction |
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For Use In For Use In |
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Thread Spacing Thread Spacing |
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Threaded Insert Type Threaded Insert Type |
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 | Helical |
For Tap Type For Tap Type |
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Helical Insert Style Helical Insert Style |
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End Type End Type |
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Press-Fit Head Shape Press-Fit Head Shape |
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 | Round |
Passivation Passivation |
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Tensile Strength Tensile Strength |
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For Maximum Hole Diameter For Maximum Hole Diameter |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Head Height Head Height |
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PEM® Part Number PEM® Part Number |
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Thread Fit Thread Fit |
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About Nuts, Materials, and Finishes
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About Helical Insert Length
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How to Install Helical Inserts
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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. | Pkg. Qty. | Pkg. | Each | Each | Each | Each | |||||
18-8 Stainless Steel—Right-Hand Threaded | ||||||||||||||
| 12-24 | 0.216" | No. 1 | 0.228" | 10 | 000000000 | 00000 | 000000000 | 000000 | 000000000 | 000000 | 000000000 | 0000000 | 000000000 | 000000 |
| 12-24 | 0.324" | No. 1 | 0.228" | 10 | 000000000 | 0000 | 000000000 | 00000 | 000000000 | 00000 | 000000000 | 000000 | 000000000 | 00000 |
| 12-24 | 0.432" | No. 1 | 0.228" | 10 | 000000000 | 0000 | 000000000 | 00000 | 000000000 | 00000 | 000000000 | 000000 | 000000000 | 00000 |
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 | |||||||||||||||
| 12-24 | 0.216" | No. 1 | 0.228" | MS21209-C2-10 | 10 | 000000000 | 000000 | 000000000 | 000000 | 000000000 | 000000 | 000000000 | 0000000 | 000000000 | 000000 |
| 12-24 | 0.324" | No. 1 | 0.228" | MS21209-C2-15 | 10 | 000000000 | 00000 | 000000000 | 00000 | 000000000 | 00000 | 000000000 | 000000 | 000000000 | 00000 |
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 | |||||||
|---|---|---|---|---|---|---|---|
| 12-24 | 0.324" | 15/64" | 15/64" | 10 | Drill Bit, 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 | ||||||
| 12-24 Thread × 0.216" Installed Lg. (12 Each) 12-24 Thread × 0.328" Installed Lg. (12 Each) 12-24 Thread × 0.432" Installed Lg. (12 Each) Drill Bit Through-Hole Tap Installation Tool | 36 | Coarse | 15/64" | 15/64" | 000000000 | 000000 |
Steel Press-Fit Nuts for Sheet Metal
Also known as clinch style captive nuts, press these into a drilled or punched hole with an arbor press or similar pressure tool. Installation requires access to both sides of the panel. Knurls on the bottom of the nut hold them firmly in place. A zinc plating provides corrosion resistance in wet environments.
For technical drawings and 3-D models, click on a part number.
Stainless Steel Press-Fit Nuts for Sheet Metal
These nuts have good chemical resistance and may be mildly magnetic. Also known as clinch style captive nuts, press them into a drilled or punched hole with an arbor press or similar pressure tool. Installation requires access to both sides of the panel. Knurls on the bottom of the nut hold them firmly in place.
Steel Low-Profile Rivet Nuts
These steel low-profile rivet nuts are about twice as strong as aluminum rivet nuts. They have a low profile for light duty fastening in low-clearance applications. A cadmium or tin-zinc plating provides corrosion resistance and adds lubricity so they collapse smoothly. The threaded portion is drawn into the sleeve when installed, creating pressure against the hole to secure the nut. Drill bit size listed in the table is for material with a 0.030"-0.090" thickness. These rivet nuts may be installed in thicker material, but may require larger holes. Install them using a hand- or power-driven rivet nut tool. Length is measured from under the flange. Installed length is the maximum length of the barrel when installed.
For technical drawings and 3-D models, click on a part number.
