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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Threaded Insert Type Threaded Insert Type |
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| Key Locking | Thread Locking |
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| Helical |
Material Material |
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For Tap Type For Tap Type |
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Thread Spacing Thread Spacing |
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For Use In For Use In |
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Thread Direction Thread Direction |
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 | Right Hand |
Tensile Strength Tensile Strength |
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End Type End Type |
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For Maximum Hole Diameter For Maximum Hole Diameter |
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Key-Locking Insert Wall Style Key-LockingInsert Wall Style |
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Helical Insert Style Helical Insert Style |
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External Locking Type External Locking Type |
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Thread Fit Thread Fit |
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Passivation Passivation |
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About Nuts, Materials, and Finishes
More
How to Install Key-Locking Inserts
More
How to Install Helical Inserts
More
About Helical Insert Length
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18-8 Stainless Steel Key-Locking Inserts
Made of stainless steel, these inserts have good 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. Inserts may be mildly magnetic. 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.
For technical drawings and 3-D models, click on a part number.
Inserts | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Tap | Each | Installation Tools | |||||||||||
| Thread Size | Thread Pitch, mm | Thread Spacing | Thread Size | Thread Pitch, mm | Installed Lg. | Drill Bit Size | For Max. Hole Dia. | No. of Locking Keys | 1-9 | 10-Up | Each | ||
18-8 Stainless Steel with Thick Wall | |||||||||||||
| M14 | 2 | Coarse | 7/8"-14 | __ | 0.81" | 53/64" | 53/64" | 4 | 000000000 | 000000 | 000000 | 000000000 | 000000 |
| M14 | 2 | Coarse | M20 | 1.5 | 20mm | 18.75 mm | 18.75mm | 4 | 000000000 | 00000 | 00000 | 000000000 | 00000 |
| M14 | 1.5 | Fine | M20 | 1.5 | 20mm | 18.75 mm | 18.75mm | 4 | 000000000 | 00000 | 00000 | 000000000 | 00000 |
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.
Inserts | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Tap | Each | Installation Tools | |||||||||||
| Thread Size | Thread Pitch, mm | Thread Spacing | Thread Size | Thread Pitch, mm | Installed Lg. | Drill Bit Size | For Max. Hole Dia. | No. of Locking Keys | 1-9 | 10-Up | Each | ||
Black-Phosphate Steel with Thick Wall | |||||||||||||
| M14 | 2 | Coarse | 7/8"-14 | __ | 0.81" | 53/64" | 53/64" | 4 | 000000000 | 00000 | 00000 | 000000000 | 000000 |
| M14 | 2 | Coarse | M20 | 1.5 | 20mm | 18.75 mm | 18.75mm | 4 | 000000000 | 00000 | 0000 | 000000000 | 00000 |
| M14 | 1.5 | Fine | M20 | 1.5 | 20mm | 18.75 mm | 18.75mm | 4 | 000000000 | 00000 | 0000 | 000000000 | 00000 |
Key-Locking Inserts with Installation Tool
Drive the keys into the surrounding material for a more secure hold than thread-locking inserts. These inserts are used to repair or convert threads in soft metals such as aluminum. They’re comparable to Keensert® inserts.
18-8 stainless steel inserts are more corrosion resistant than black-phosphate steel. They may be mildly magnetic.
Black-phosphate steel inserts are mildly corrosion resistant.
Choose inserts with a thick wall for greater strength than thin-wall inserts, or to fill a large hole.
For Tap | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Thread Size | Thread Pitch, mm | Thread Spacing | Thread Size | Thread Pitch, mm | Installed Lg. | Drill Bit Size | For Max. Hole Dia. | No. of Locking Keys | No. of Inserts Included | Each | |
18-8 Stainless Steel with Thick Wall | |||||||||||
| M14 | 2 | Coarse | M20 | 1.5 | 20mm | 18.75 mm | 18.75mm | 4 | 4 | 000000000 | 0000000 |
| M14 | 1.5 | Fine | M20 | 1.5 | 20mm | 18.75 mm | 18.75mm | 4 | 4 | 000000000 | 000000 |
Black-Phosphate Steel with Thick Wall | |||||||||||
| M14 | 2 | Coarse | 7/8"-14 | __ | 0.81" | 53/64" | 53/64" | 4 | 3 | 000000000 | 00000 |
| M14 | 2 | Coarse | M20 | 1.5 | 20mm | 18.75 mm | 18.75mm | 4 | 4 | 000000000 | 00000 |
| M14 | 1.5 | Fine | M20 | 1.5 | 20mm | 18.75 mm | 18.75mm | 4 | 4 | 000000000 | 00000 |
Black-Phosphate Steel Easy-to-Install
Thread-Locking Inserts
A black-phosphate finish provides mild corrosion resistance. Also known as E-Z Lok, these inserts use Loctite® adhesive to keep them in place. The adhesive reaches full strength after 72 hours. Installation requires a drill bit and a standard tap. Then set the insert with a bolt and two nuts, or use an installation bit.
Choose inserts with a thick wall for greater strength than thin-wall inserts, or to fill a large hole.
To drive slotted inserts, you can use a slotted screwdriver instead of using an installation bit or a bolt and two nuts.
For technical drawings and 3-D models, click on a part number.
Inserts | |||||||||||||
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For Tap | Installation Bits | ||||||||||||
| Thread Size | Thread Pitch, mm | Thread Spacing | Thread Size | Thread Pitch, mm | Installed Lg. | Drill Bit Size | For Max. Hole Dia. | Drive Style | Pkg. Qty. | Pkg. | Each | ||
Black-Phosphate Steel with Thick Wall | |||||||||||||
| M14 | 2 | Coarse | 7/8"-9 | __ | 11/16" | 49/64" | 49/64" | Slotted | 5 | 000000000 | 000000 | 000000000 | 000000 |
| M14 | 1.25 | Extra Fine | 3/4"-16 | __ | 21/64" | 11/16" | 11/16" | __ | 5 | 000000000 | 0000 | 000000 | 00 |
| M14 | 1.25 | Extra Fine | 3/4"-16 | __ | 29/64" | 11/16" | 11/16" | __ | 5 | 000000000 | 0000 | 000000 | 00 |
| M14 | 1.25 | Extra Fine | 3/4"-16 | __ | 45/64" | 11/16" | 11/16" | __ | 1 | 000000000 | 0000 | 000000 | 00 |
| M14 | 1.25 | Extra Fine | M18 | 1.5 | 11.5mm | 16.5 mm | 16.5mm | __ | 1 | 000000000 | 0000 | 000000 | 00 |
18-8 Stainless Steel Easy-to-Install Thread-Locking Inserts
Made of 18-8 stainless steel, these inserts have good corrosion resistance. Also known as E-Z Lok, they use Loctite® adhesive to keep them in place. The adhesive reaches full strength after 72 hours. They may be mildly magnetic. Installation requires a drill bit and a standard tap. Then set the insert with an installation bit, a slotted screwdriver, or a bolt with two nuts.
Choose inserts with a thick wall for greater strength than thin-wall inserts, or to fill a large hole.
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.
Inserts that meet DIN 8140 adhere to international standards for dimensions.
For technical drawings and 3-D models, click on a part number.
Inserts | Through-Hole Taps | Closed-End Hole Taps | Installation Tools | ||||||||||||
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| Thread Size | Thread Pitch, mm | Thread Spacing | Installed Lg., mm | Drill Bit Size | For Max. Hole Dia. | Specifications Met | Pkg. Qty. | Pkg. | Each | Each | Each | ||||
18-8 Stainless Steel—Right-Hand Threaded | |||||||||||||||
| M14 | 2 | Coarse | 14 | 14.5 mm | 14.5mm | DIN 8140, MA-3279-116 | 5 | 000000000 | 000000 | 000000000 | 000000 | 000000000 | 0000000 | 000000000 | 0000000 |
| M14 | 2 | Coarse | 21 | 14.5 mm | 14.5mm | DIN 8140, MA-3279-166 | 1 | 000000000 | 0000 | 000000000 | 00000 | 000000000 | 000000 | 000000000 | 000000 |
| M14 | 1.5 | Fine | 21 | 37/64" | 37/64" | MA-3279 | 5 | 000000000 | 0000 | 000000000 | 00000 | 000000000 | 000000 | 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.
Inserts that meet DIN 8140 adhere to international standards for dimensions.
For technical drawings and 3-D models, click on a part number.
Inserts | Through-Hole Taps | Closed-End Hole Taps | Installation Tools | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Thread Size | Thread Pitch, mm | Thread Spacing | Installed Lg., mm | Drill Bit Size | For Max. Hole Dia. | Specifications Met | Pkg. Qty. | Pkg. | Each | Each | Each | ||||
18-8 Stainless Steel | |||||||||||||||
| M14 | 2 | Coarse | 14 | 14.5 mm | 14.5mm | MA-3329-116 | 1 | 000000000 | 00000 | 000000000 | 000000 | 000000000 | 0000000 | 000000000 | 0000000 |
| M14 | 2 | Coarse | 21 | 14.5 mm | 14.5mm | DIN 8140, MA-3329-166 | 1 | 000000000 | 0000 | 000000000 | 00000 | 000000000 | 000000 | 000000000 | 000000 |
| M14 | 1.5 | Fine | 21 | 37/64" | 37/64" | DIN 8140, MA-3329-165 | 1 | 000000000 | 0000 | 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 | Thread Pitch, mm | Thread Spacing | Installed Lg., mm | Drill Bit Size | For Max. Hole Dia. | No. of Inserts Included | Includes | Each | |
18-8 Stainless Steel—Right-Hand Threaded | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| M14 | 2 | Coarse | 21 | 37/64" | 37/64" | 12 | Drill Bit, Through-Hole Tap, Installation Tool | 000000000 | 0000000 |
| M14 | 1.5 | Fine | 21 | 9/16" | 9/16" | 5 | Drill Bit, Through-Hole Tap, Installation Tool | 000000000 | 00000 |
Spark Plug Thread Repair Kits for
Gasket-Seat and Taper-Seat Ports
These kits have short-, normal-, and long-reach inserts, an installation tool, and a tap.
| Includes | No. of Inserts Included | Each | |
18-8 Stainless Steel | |||
|---|---|---|---|
| M14×1.25 mm Thread × Short Insert Reach (1 Each) M14×1.25 mm Thread × Normal Insert Reach (1 Each) M14×1.25 mm Thread × Long Insert Reach (1 Each) Through-Hole Tap Installation Tool | 3 | 000000000 | 000000 |
| M14×1.25 mm Thread × Short Insert Reach (6 Each) M14×1.25 mm Thread × Normal Insert Reach (6 Each) M14×1.25 mm Thread × Long Insert Reach (6 Each) Through-Hole Tap Installation Tool | 18 | 000000000 | 00000 |
Spark Plug Thread Repair Kits
Kits include helical inserts, a tap, and an 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.
| Includes | No. of Inserts Included | Each | |
18-8 Stainless Steel | |||
|---|---|---|---|
| M14×1.25 mm Thread × 3/8" Insert Reach (6 Each) M14×1.25 mm Thread × 7/16" Insert Reach (6 Each) M14×1.25 mm Thread × 0.472" Insert Reach (6 Each) M14×1.25 mm Thread × 1/2" Insert Reach (6 Each) M14×1.25 mm Thread × 3/4" Insert Reach (6 Each) Through-Hole Tap Installation Tool | 30 | 000000000 | 0000000 |
Metric Steel Hex Weld Nuts
You can weld these nuts to flat and uneven uncoated steel surfaces for a strong permanent hold. A collar pilot assists alignment and prevents welding spatter from getting into threads.
For technical drawings and 3-D models, click on a part number.
Thread | Collar | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Size | Pitch, mm | Wd., mm | Ht., mm | Dia., mm | Ht., mm | For Hole Dia., mm | Specifications Met | Pkg. Qty. | Pkg. | |
Steel | ||||||||||
| M14 | 2 | 22 | 9.2 | 16.8 | 1.8 | 16.8 | DIN 929 | 10 | 000000000 | 00000 |
Threaded Round Plugs for Straight-Thread Pipe
Seal tube and hose fittings to keep their straight threads protected from contaminants during fabrication and storage.
Nylon plugs resist chemicals better than aluminum plugs and are more wear resistant than polyethylene plugs. You can install them manually or with a hex-head wrench or socket.
For technical drawings and 3-D models, click on a part number.
Thread | ||||||||
|---|---|---|---|---|---|---|---|---|
| Size | Pitch, mm | Ht., mm | Max. Temp., °F | Hardness | Color | Pkg. Qty. | Pkg. | |
| M14 | 1.5 | 10 | 150° | Durometer 55D | Yellow | 50 | 0000000 | 000000 |
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 | |||||||||
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| Size | Pitch, mm | Type | For OD | Inside Ht. | Max. Temp., °F | Color | Pkg. Qty. | Pkg. | |
Plastic | |||||||||
For Straight-Thread Pipe | |||||||||
| M14 | 2 | Metric | 18mm | 12mm | 150° | Yellow | 15 | 0000000 | 000000 |
T-Slot Nuts
Designed to slide into T-slot tracks on machine tool tables, use these nuts to secure clamps and workpieces.
Fully threaded nuts allow a stud to extend beyond the bottom of the nut.
Stainless steel nuts have excellent corrosion resistance. They are a good choice for use with stainless steel parts or in EDM applications.
For technical drawings and 3-D models, click on a part number.
Base | Fully Threaded | |||||||
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| Thread Size | Thread Pitch, mm | For Slot Wd., mm | Ht., mm | Wd., mm | O'all Ht., mm | Specifications Met | Each | |
18-8 Stainless Steel | ||||||||
| M14 | 2 | 16 | 9 | 25 | 18 | DIN 508 | 000000000 | 00000 |
Drop-In T-Slot Nuts
Install these nuts from the top of the T-slot track and secure with a quarter turn to anchor clamps and workpieces. Also known as quarter-turn T-slot nuts.
Fully threaded nuts allow a stud to extend beyond the bottom of the nut.
For technical drawings and 3-D models, click on a part number.
Thread | Base | Fully Threaded | |||||
|---|---|---|---|---|---|---|---|
| Size | Pitch, mm | For Slot Wd., mm | Ht., mm | Wd., mm | O'all Ht., mm | Each | |
Black-Oxide Steel | |||||||
| M14 | 2 | 16 | 9 | 25 | 18 | 000000000 | 000000 |