M14 Thread Threaded Inserts

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Key-Locking Insert Wall Type

For Material Thickness

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Right Hand and Left Hand

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About Threaded Inserts

Choose the right threaded insert for your application and learn how to install it securely.

Key-Locking Threaded Inserts for Soft Metal

Add strong threads in soft metal, such as aluminum. The keys on these inserts drive into holes to hold more securely than thread-locking or helical inserts. They prevent slipping and rotating, so they’re stable enough for use in vehicle or aerospace parts that experience heavy vibration. These inserts are comparable to Keensert inserts.

To install, drill and tap a hole in your material. Then, thread the insert onto the installation tool and screw it into the hole. Place the tool over the keys and hit it with a hammer to drive them in.

Standard Wall—Stronger than thin-wall inserts, these are your go-to choice for threading most holes.

Thin Wall—Use these inserts near the edge of workpieces or wherever you only have space for a small hole. They're also lighter than standard and extra-thick wall inserts for applications with strict weight limitations.

Black Phosphate-Coated Steel—These inserts resist occasional moisture.

18-8 Stainless Steel—The choice for wet and outdoor environments, these inserts resist rust and mild chemicals.

	Inserts									Installation Tools		Inserts with Installation Tools
								Each
	Thread Size	For Tap Thread Size	Installed Lg.	Drill Bit Size	For Max. Hole Dia.	No. of Locking Keys		1-9	10-Up		Each	No. of Inserts Included		Each
Standard Wall







				Black Phosphate-Coated Steel

				M8 x 1 mm	M14 x 1.5 mm	14 mm	12.8 mm	12.8 mm	4	90245A347	000000	000000	94010A485	000000	—	———	0


				M8 x 1.25 mm	M14 x 1.5 mm	14 mm	12.8 mm	12.8 mm	4	90245A284	00000	00000	94010A485	00000	—	———	0
				M14 x 1.5 mm	M20 x 1.5 mm	20 mm	18.75 mm	18.75 mm	4	90245A185	00000	00000	94010A340	00000	4	90245A306	000000
				M14 x 2 mm	7/8"-14	0.810"	53/64"	0.828"	4	90699A330	00000	00000	90699A565	00000	3	90699A130	00000
				M14 x 2 mm	M20 x 1.5 mm	20 mm	18.75 mm	18.75 mm	4	90245A186	00000	00000	94010A340	00000	4	90245A301	00000




						18-8 Stainless Steel

						M8 x 1 mm	M14 x 1.5 mm	14 mm	12.8 mm	12.8 mm	4	93340A101	00000	00000	94010A485	00000	—	———	0


						M8 x 1.25 mm	M14 x 1.5 mm	14 mm	12.8 mm	12.8 mm	4	93715A385	00000	00000	94010A485	00000	—	———	0
						M14 x 1.5 mm	M20 x 1.5 mm	20 mm	18.75 mm	18.75 mm	4	93715A650	00000	00000	94010A340	00000	—	———	0
						M14 x 2 mm	7/8"-14	0.810"	53/64"	0.828"	4	93930A214	00000	00000	90699A565	00000	—	———	0
						M14 x 2 mm	M20 x 1.5 mm	20 mm	18.75 mm	18.75 mm	4	93715A645	00000	00000	94010A340	00000	4	93715A455	000000


						Thin Wall







										Black Phosphate-Coated Steel

										M10 x 1.25 mm	M14 x 1.5 mm	14 mm	12.8 mm	12.8 mm	4	90245A174	0000	0000	94010A330	00000	4	90245A165	00000


										M10 x 1.5 mm	M14 x 1.5 mm	14 mm	12.8 mm	12.8 mm	4	90245A175	0000	0000	94010A330	00000	4	90245A166	00000




												18-8 Stainless Steel

												M10 x 1.25 mm	M14 x 1.5 mm	14 mm	12.8 mm	12.8 mm	4	93715A630	00000	00000	94010A330	00000	4	93715A435	00000


												M10 x 1.5 mm	M14 x 1.5 mm	14 mm	12.8 mm	12.8 mm	4	93715A625	00000	00000	94010A330	00000	4	93715A440	00000

Key-Locking Threaded Insert Assortments with Installation Tools

What you need to add or repair a range of thread sizes in soft metal, such as aluminum. These assortments include multiple key-locking inserts of each size and an installation tool. They're comparable to Keensert inserts.

Black Phosphate-Coated Steel—These inserts resist occasional moisture.

18-8 Stainless Steel—The choice for wet and outdoor environments, these inserts resist rust and mild chemicals.

				For Tap
	No. of Inserts Included	Includes	Thread Spacing	Thread Size	Thread Pitch, mm	Drill Bit Size, mm	For Max. Hole Dia., mm		Each
Thin Wall







				Black Phosphate-Coated Steel

				82	Installation Tool M6×1 mm Thread × 10 mm Installed Lg. (20 Each) M8×1 mm Thread × 12 mm Installed Lg. (15 Each) M8×1.25 mm Thread × 12 mm Installed Lg. (15 Each) M10×1.25 mm Thread × 14 mm Installed Lg. (10 Each) M10×1.5 mm Thread × 14 mm Installed Lg. (10 Each) M12×1.25 mm Thread × 16 mm Installed Lg. (6 Each) M12×1.75 mm Thread × 16 mm Installed Lg. (6 Each)	Coarse, Fine, Extra Fine	M10 M12 M14 M16	1.25 1.5	8.8 10.8 12.8 14.75	8.8 10.8 12.8 14.75	90284A311	0000000




						18-8 Stainless Steel

						82	Installation Tool M6×1 mm Thread × 10 mm Installed Lg. (20 Each) M8×1 mm Thread × 12 mm Installed Lg. (15 Each) M8×1.25 mm Thread × 12 mm Installed Lg. (15 Each) M10×1.25 mm Thread × 14 mm Installed Lg. (10 Each) M10×1.5 mm Thread × 14 mm Installed Lg. (10 Each) M12×1.25 mm Thread × 16 mm Installed Lg. (6 Each) M12×1.75 mm Thread × 16 mm Installed Lg. (6 Each)	Coarse, Fine, Extra Fine	M10 M12 M14 M16	1.25 1.5	8.8 10.8 12.8 14.75	8.8 10.8 12.8 14.75	90284A511	000000

Installation Bits for Slotted-Drive Threaded Inserts

For fast installation, use these installation bits with power drills and drill presses.

For Thread Size	Hex Shank Size		Each
1/2"-13, 1/2"-20, 9/16"-12, 9/16"-18, 5/8"-11, 5/8"-18, M14	3/8"	94110A180	000000

Helical Threaded Insert Removal Tools

To remove installed helical inserts, place the tip of these tools into the insert and lightly strike the tool’s head. Then, turn the tool counterclockwise with pressure to extract the insert.

Narrow Profile—The tip of these tools has a narrower angle than standard removal tools to reduce the chance it will dig into your material’s surface when you strike the tool.

	Mfr.		Each
Standard Profile



	6-32, 6-40, 8-32, 8-36, 10-24, 10-32, 12-24, 1/4"-20, 1/4"-28, 5/16"-18, 5/16"-24, 3/8"-16, 3/8"-24, 7/16"-14, 7/16"-20, 1/2"-13, 1/2"-20, 9/16"-12, 9/16"-18, 5/8"-11, 5/8"-18, 3/4"-10, 3/4"-16, 7/8"-9, 7/8"-14, 1"-8, 1"-12, 1"-14, M4, M5, M6, M7, M8, M9, M10, M12, M13, M14, M15, M16, M18, M20, M22, M24	—	90254A113	000000


	Narrow Profile



			7/16"-14, 7/16"-20, 1/2"-13, 1/2"-20, 1/2"-28, 9/16"-12, 9/16"-18, 5/8"-11, 5/8"-18, 5/8"-24, 3/4"-10, 3/4"-16, 3/4"-20, 7/8"-9, 7/8"-14, 7/8"-20, 1"-8, 1"-12, 1"-14, M12, M14, M16, M18, M20, M22, M24	Heli-Coil	90254A330	00000

Key-Locking Threaded Insert Drivers

Place the tip of these tools into a key-locking insert after you've threaded it into a hole with your fingers. Then, strike these tools with a hammer to drive the keys into the material and secure the insert. They’re compatible with Keensert inserts.

Choose the tool that matches your insert’s thread size and tap thread size.

		Each
Metric Thread







	For Thin-Wall Inserts

	M10	M14	Straight	94010A330	000000




			For Thick-Wall Inserts

			M8	M14	Straight	94010A485	00000


			M14	7/8"-14	Straight	90699A565	00000
			M14	M20	Straight	94010A340	00000

Helical Threaded Inserts

Pronged

Restore, reinforce, or create threads in metal. The tough coils on these inserts expand once installed to anchor in a tapped hole. Also known as Heli-Coil inserts, they're often used in engine heads and machinery housings where strong connections are critical. Unlike threadlocking inserts, you can remove and reuse them without them losing their strength.

Installation requires a drill bit, a helical insert tap, and an installation tool.

Pronged—The prong attaches to an installation tool for precise control as you drive inserts in. Remove the prong with a punch or break-off tool before inserting a screw.

18-8 Stainless Steel—The choice for wet and outdoor environments, these inserts resist rust and mild chemicals.

	Inserts								Through-Hole Taps		Closed-End Hole Taps		Installation Tools		Inserts with Installation Tools
	Thread Size	Installed Lg., mm	Drill Bit Size	For Max. Hole Dia.	Specs. Met	Pkg. Qty.		Pkg.		Each		Each		Each	No. of Inserts Included		Each
Pronged







				18-8 Stainless Steel

				M14 x 1.5 mm	21	37/64"	0.578"	SAE MA3279-165	5	91732A303	000000	91709A659	000000	91709A560	0000000	90261A199	0000000	5	91732A826	0000000


				M14 x 2 mm	14	14.5 mm	14.5 mm	DIN 8140, SAE MA3279-116	5	91732A658	00000	91709A368	000000	91709A563	000000	90261A198	000000	—	———	0
				M14 x 2 mm	21	14.5 mm	14.5 mm	DIN 8140, SAE MA3279-166	1	91732A671	0000	91709A368	000000	91709A563	000000	90261A198	000000	12	91732A068	000000

Extraction Tools

Remove installed helical inserts.

For Pronged Helical Inserts—Place the tip into pronged inserts and lightly strike the tool’s head. Then, turn the tool counterclockwise with pressure to extract the insert.

		Each
For Pronged Helical Inserts



	7/16"-14, 7/16"-20, 1/2"-13, 1/2"-20, 1/2"-28, 9/16"-12, 9/16"-18, 5/8"-11, 5/8"-18, 5/8"-24, 3/4"-10, 3/4"-16, 3/4"-20, 7/8"-9, 7/8"-14, 7/8"-20, 1"-8, 1"-12, 1"-14, M12, M14, M16, M18, M20, M22, M24	90254A330	000000

Thread-Locking Threaded Inserts

With Loctite® adhesive already on the threads, these inserts won’t back out or vibrate loose. The adhesive reaches full strength after 72 hours. Unlike helical inserts, you can install them with a standard drill and tap. However, thread-locking inserts are difficult to remove and reuse.

After drilling and tapping your hole, install inserts with a wrench or an installation bit. To use a wrench, thread an insert and two hex nuts onto a bolt. Then, grip and turn the top nut to drive into the hole. For slotted inserts, you can drive with a slotted screwdriver instead.

Standard Wall—Stronger than thin-wall inserts, these are your go-to choice for threading most holes.

Black Phosphate-Coated Steel—These inserts resist occasional moisture.

18-8 Stainless Steel—The choice for wet and outdoor environments, these inserts resist rust and mild chemicals.

	Inserts									Installation Tools
	Thread Size	For Tap Thread Size	Installed Lg.	Drill Bit Size	For Max. Hole Dia.	Drive Style	Pkg. Qty.		Pkg.		Each
Standard Wall







				Black Phosphate-Coated Steel

				M14 x 1.25 mm	3/4"-16	0.328"	11/16"	0.688"	—	5	90248A092	000000	———	0


				M14 x 1.25 mm	3/4"-16	0.453"	11/16"	0.688"	—	5	90248A095	00000	———	0
				M14 x 1.25 mm	3/4"-16	0.703"	11/16"	0.688"	—	1	97084A315	0000	———	0
				M14 x 1.25 mm	M18 x 1.5 mm	11.5 mm	16.5 mm	16.5 mm	—	1	97084A314	0000	———	0
				M14 x 2 mm	7/8"-9	0.688"	49/64"	0.766"	Slotted	5	97084A150	00000	94110A180	000000




						18-8 Stainless Steel

						M14 x 2 mm	7/8"-9	0.688"	49/64"	0.766"	Slotted	1	97120A150	0000	94110A180	00000

Key-Locking Threaded Inserts with Installation Tools

Paired with the right tool for installation, these inserts create strong threads in soft metal, such as aluminum. They have keys that drive into material to prevent inserts from slipping and rotating in the hole.

Standard Wall—Stronger than thin-wall inserts, these are your go-to choice for threading most holes.

Black Phosphate-Coated Steel—These inserts resist occasional moisture.

18-8 Stainless Steel—The choice for wet and outdoor environments, these inserts resist rust and mild chemicals.

	Drill Bit Size	For Max. Hole Dia.	No. of Locking Keys	No. of Inserts Included		Each
Standard Wall







	Black Phosphate-Coated Steel

	M14 x 1.5 mm	M20 x 1.5 mm	20 mm	18.75 mm	18.75 mm	4	4	90245A306	000000


	M14 x 2 mm	7/8"-14	0.810"	53/64"	0.828"	4	3	90699A130	00000
	M14 x 2 mm	M20 x 1.5 mm	20 mm	18.75 mm	18.75 mm	4	4	90245A301	00000




			18-8 Stainless Steel

			M14 x 2 mm	M20 x 1.5 mm	20 mm	18.75 mm	18.75 mm	4	4	93715A455	000000


			Thin Wall







							Black Phosphate-Coated Steel

							M10 x 1.25 mm	M14 x 1.5 mm	14 mm	12.8 mm	12.8 mm	4	4	90245A165	00000


							M10 x 1.5 mm	M14 x 1.5 mm	14 mm	12.8 mm	12.8 mm	4	4	90245A166	00000




									18-8 Stainless Steel

									M10 x 1.25 mm	M14 x 1.5 mm	14 mm	12.8 mm	12.8 mm	4	4	93715A435	00000


									M10 x 1.5 mm	M14 x 1.5 mm	14 mm	12.8 mm	12.8 mm	4	4	93715A440	00000

Tapping Threaded Insert Assortments for Soft Metal

Cut a variety of thread sizes into aluminum and other soft metal—no taps required. These inserts cut their own threads and lock into material, so they won’t budge when you install or remove a screw. To install inserts with a wrench, thread an insert and two hex nuts onto a bolt. Then, grip and turn the top nut to drive into a drilled hole. If you need to add a lot of threaded connections quickly, use an installation tool (not included) with a ratchet wrench or drill press. These inserts are comparable to Tap-Lok inserts.

Zinc-Plated Steel—A step up from plain steel, the plating withstands occasional exposure to moisture.

	Includes	Drill Bit Size	For Max. Hole Dia.		Each
Zinc-Plated Steel



	70	M3.5x0.6 mm Thread x 8 mm Installed Lg. (5 Each) M3x0.5 mm Thread x 6 mm Installed Lg. (5 Each) M4x0.7 mm Thread x 8 mm Installed Lg. (5 Each) M5x0.8 mm Thread x 10 mm Installed Lg. (10 Each) M6×1 mm Thread × 12 mm Installed Lg. (10 Each) M8x1.25 mm Thread x 14 mm Installed Lg. (10 Each) M10x1.5 mm Thread x 18 mm Installed Lg. (10 Each) M12x1.75 mm Thread x 22 mm Installed Lg. (10 Each) M14x2.0 mm Thread x 24 mm Installed Lg. (5 Each)	3/16" 19/64" 7/16" 33/64" 19/32" 43/64" 2 Ga. B V	0.188" 0.221" 0.238" 0.297" 0.377" 0.438" 0.516" 0.594" 0.672"	93491A120	0000000

Mil.-Spec. Key-Locking Threaded Inserts For Soft Metal

These inserts are manufactured and tested to meet or compare to strict standards adopted by the U.S. military. The keys drive into aluminum and other soft metal for a secure hold that won't slip or rotate, even in vibrating vehicle or aerospace parts. These inserts are comparable to Keensert inserts.

Standard Wall—Stronger than thin-wall inserts, these are your go-to choice for threading most holes.

High-Strength Cadmium-Plated Alloy Steel—These inserts have the strength to stand up to high-pressure applications and a plating that helps screws thread in smoothly.

	Inserts									Installation Tools
	Thread Size	For Tap Thread Size	Installed Lg., mm	Drill Bit Size, mm	For Max. Hole Dia., mm	No. of Locking Keys	Specs. Met		Each		Each
Standard Wall







				High-Strength Cadmium-Plated Alloy Steel

				M8 x 1 mm	M14 x 1.5 mm	14	12.8	12.8	4	NA0150-080	95101A161	000000	93904A789	000000


				Thin Wall







								High-Strength Cadmium-Plated Alloy Steel

								M10 x 1.25 mm	M14 x 1.5 mm	14	12.8	12.8	4	NA0148-100	95101A153	00000	93904A783	00000


								M10 x 1.5 mm	M14 x 1.5 mm	14	12.8	12.8	4	NA0148-100	95101A152	00000	93904A783	00000

Helical Threaded Inserts For Spark Plug Repair


For Gasket Seats	For Gasket and Taper Seats

Replace stripped spark plugs in engines. These kits include helical inserts that fit common hole sizes, plus a tap and an installation tool. Also known as Heli-Coil inserts.

Inserts For Gasket Seats—Use these helical inserts in spark plug ports with a gasket. They cannot be used with taper seat ports.

Inserts For Gasket and Taper Seats—Although they're designed to fit in taper seat spark plug ports, you can also use these inserts in ports with a gasket seat.

18-8 Stainless Steel—The choice for wet and outdoor environments, these inserts resist rust and mild chemicals.

	Includes		Each
Inserts For Gasket Seats







	18-8 Stainless Steel

	M14 x 1.25 mm	Extra Fine	30	Installation Tool 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) M14×1.25 mm Thread × 3/8" Insert Reach (6 Each) M14×1.25 mm Thread × 7/16" Insert Reach (6 Each) Through-Hole Tap	91732A091	0000000


	Inserts For Gasket and Taper Seats







					18-8 Stainless Steel

					M14 x 1.25 mm	Extra Fine	3	Installation Tool M14×1.25 mm Thread × Long Insert Reach (1 Each) M14×1.25 mm Thread × Normal Insert Reach (1 Each) M14×1.25 mm Thread × Short Insert Reach (1 Each) Through-Hole Tap	91732A095	00000


					M14 x 1.25 mm	Extra Fine	18	Installation Tool M14×1.25 mm Thread × Long Insert Reach (6 Each) M14×1.25 mm Thread × Normal Insert Reach (6 Each) M14×1.25 mm Thread × Short Insert Reach (6 Each) Through-Hole Tap	91732A097	000000

Helical Threaded Inserts with Installation Tools

Drill Bit, Installation Tool

and Through-Hole Tap

Quickly restore stripped threads—these inserts come with through-hole taps and installation tools. The tough coils on these inserts expand once installed to anchor in a tapped hole.

Pronged—The prong attaches to an installation tool for precise control as you drive inserts in. Remove the prong with a punch or break-off tool before inserting a screw.

18-8 Stainless Steel—The choice for wet and outdoor environments, these inserts resist rust and mild chemicals.

	For Max. Hole Dia.	No. of Inserts Included	Includes		Each
Pronged







	18-8 Stainless Steel

	M14 x 1.5 mm	21	14.25 mm	0.563"	5	Drill Bit Installation Tool Through-Hole Tap	91732A826	0000000


	M14 x 2 mm	21	37/64"	0.578"	12	Drill Bit Installation Tool Through-Hole Tap	91732A068	000000

Screw-Locking Seize-Resistant Key-Locking Threaded Inserts for Soft Metal

Create the tightest hold in aluminum and other soft metal without screws sticking. The lubricant on these inserts eases installation, and the irregularly shaped threads won’t let screws back out from vibration. Inserts have keys that drive into material to prevent them from slipping or rotating in the hole.

Standard Wall—Stronger than thin-wall inserts, these are your go-to choice for threading most holes.

Dry-Film-Lubricated Cadmium-Plated Steel—The plating creates a barrier against rust.

Dry-Film-Lubricated 18-8 Stainless Steel—The choice for wet and outdoor environments, these inserts resist rust and mild chemicals.

	Inserts								Installation Tools
	Thread Size	For Tap Thread Size	Installed Lg., mm	Drill Bit Size, mm	For Max. Hole Dia., mm	No. of Locking Keys		Each		Each
Standard Wall







				Dry-Film-Lubricated 18-8 Stainless Steel

				M8 x 1 mm	M14 x 1.5 mm	14	12.8	12.8	4	97255A224	000000	93904A789	000000


				M8 x 1.25 mm	M14 x 1.5 mm	14	12.8	12.8	4	97255A225	00000	93904A789	00000


				Thin Wall







								Dry-Film-Lubricated Cadmium-Plated Steel

								M10 x 1.5 mm	M14 x 1.5 mm	14	12.8	12.8	4	97255A315	00000	93904A783	00000




										Dry-Film-Lubricated 18-8 Stainless Steel

										M10 x 1.5 mm	M14 x 1.5 mm	14	12.8	12.8	4	97255A186	00000	93904A783	00000

Key-Locking Threaded Insert Installation Tools


Style A	Style C

Thread inserts and drive down their keys with a single tool. These tools are compatible with Keensert inserts.

Threaded Insert Installation Tools

Style A

	For Tap Thread Size	Style	Features		Each
For Thin-Wall Inserts



	M10	M14	A	Slotted End	6721N76	000000


	For Thick-Wall Inserts



			M8	M14	A	Slotted End	6721N85	00000


			M14	M20	A	Slotted End	6721N88	00000

Threaded Insert Installation Tools with Spring

Style C

The tradespersons’ choice for installing Mil. Spec. inserts. A spring holds the sleeve under tension, so wobbles and jostles don’t interfere with a clean, professional install.

	For Tap Thread Size	Style	Features		Each
For Thin-Wall Inserts



	M10	M14	C	Sleeve, Slotted End	93904A783	000000


	For Thick-Wall Inserts



			M8	M14	C	Sleeve, Slotted End	93904A789	00000


			M14	M20	C	Sleeve, Slotted End	93904A793	00000

Easy-Start Helical Threaded Insert Installation Tools

These tools compress the diameter of your insert so it fits easily into a tapped hole. They’re the best choice for preventing misaligned or damaged threads—just make sure you have space to turn the crank. Screw or slide an insert onto your tool and drive it between a quarter-turn and half-turn below the surface. Also known as prewinders.

Threaded Insert Installation Tools with Depth Stop


Crank Handle	T-Handle


Prong Slot Drive	Threaded Drive

Ensure consistent installation across multiple inserts. Set your desired installation depth, and the stop will prevent you from driving your insert any further.

Prong Slot Drive Helical Insert Tool—Install both left- and right-hand threaded inserts with any thread pitch. However, these tools don't align the threads like threaded-drive tools, so installation may be more difficult.

Threaded Drive Helical Insert Tool—These tools align each coil of your insert perfectly with the thread pitch of your tapped hole for easy installation.

	Mfr.	Handle Style	Helical Insert Tool Drive Type	For Use With		Each
Metric Thread



	M14 × 1.5 mm	—	Crank	Threaded	Helical Inserts, Screw-Locking Helical Inserts	1338N68	0000000


	M14 × 1.5 mm	Heli-Coil	T-Handle	Threaded	Helical Inserts, Screw-Locking Helical Inserts	90261A199	000000
	M14 × 2 mm	—	T-Handle	Prong Slot	Helical Inserts, Screw-Locking Helical Inserts	1338N69	000000
	M14 × 2 mm	Heli-Coil	T-Handle	Threaded	Helical Inserts, Screw-Locking Helical Inserts	90261A198	000000

Tapping Threaded Inserts for Soft Metal

No need to tap the hole, these inserts cut their own threads into soft metal, such as aluminum. The teeth dig into the material to keep them secure when installing and removing screws. To install inserts with a wrench, thread an insert and two hex nuts onto a bolt. Then, grip and turn the top nut to drive into a drilled hole. If you need to add a lot of threaded connections quickly, use an installation tool with a ratchet wrench or drill press. These inserts are comparable to Tap-Lok inserts.

Standard Wall—Stronger than thin-wall inserts, these are your go-to choice for threading most holes and replacing drilled out threads.

Zinc-Plated Steel—A step up from plain steel, the plating withstands occasional exposure to moisture.

	Inserts						Installation Tools
	Thread Size	Installed Lg., mm	Drill Bit Size, mm	For Max. Hole Dia., mm		Each		Each
Standard Wall







				Zinc-Plated Steel

				M14 x 2 mm	25.4	19.5	19.5	90240A611	000000	90240A408	0000000

Screw-Locking Helical Threaded Inserts

Pronged

The irregularly shaped threads tightly grip screws to prevent them from loosening or backing out under vibration. Use these inserts to create or repair threads in pumps and other machinery that shakes and rattles. Also known as Heli-Coil inserts.

Installation requires a drill bit, a helical insert tap, and an installation tool.

Pronged—The prong attaches to an installation tool for precise control as you drive inserts in. Remove the prong with a punch or break-off tool before inserting a screw.

18-8 Stainless Steel—The choice for wet and outdoor environments, these inserts resist rust and mild chemicals.

	Inserts								Through-Hole Taps		Closed-End Hole Taps		Installation Tools
	Thread Size	Installed Lg., mm	Drill Bit Size	For Max. Hole Dia.	Specs. Met	Pkg. Qty.		Pkg.		Each		Each		Each
Pronged







				18-8 Stainless Steel

				M14 x 1.5 mm	21	37/64"	0.578"	DIN 8140, SAE MA3329-165	1	90296A414	00000	91709A659	000000	91709A560	0000000	90261A199	0000000


				M14 x 2 mm	14	14.5 mm	14.5 mm	SAE MA3329-116	1	90296A412	0000	91709A368	000000	91709A563	000000	90261A198	000000
				M14 x 2 mm	21	14.5 mm	14.5 mm	DIN 8140, SAE MA3329-166	1	90296A416	0000	91709A368	000000	91709A563	000000	90261A198	000000

Installation Tools for Tapping Threaded Inserts

Install tapping inserts into metal, plastic, and wood with these tools. They have hardened steel threads that grip the full length of the insert for strong, rigid support as the insert cuts threads. The result is a straight and stable install.

Square Shank—These tools don’t have a handle. Attach them to a tap wrench to turn.

Loosening Nut—After installation, this nut lets you unthread the tool without unthreading the insert.

	Square Drive Size	Shank Type	Features		Each
Metric Thread



	M14 × 2 mm	37/64"	Square	Loosening Nut	90240A408	0000000

Finish-Your-Own Key-Locking Threaded Inserts for Soft Metal

Tap the thread size you need into the solid body of these inserts. They’re a great choice when you need a custom combination of internal thread size and external diameter. Use them to repair or add new threads in soft metal, such as aluminum. They can also plug threaded holes without the hassle of welding. Keys on the inserts drive into material to prevent slipping and rotating in the hole.

Black Phosphate-Coated Steel—These inserts resist occasional moisture.

18-8 Stainless Steel—The choice for wet and outdoor environments, these inserts resist rust and mild chemicals.

	Inserts								Installation Tools
	For Tap Thread Size	Installed Lg., mm	Max. Tapping Dia., mm	Drill Bit Size, mm	For Max. Hole Dia., mm	No. of Locking Keys		Each		Each
Standard Profile







				Black Phosphate-Coated Steel

				M14 x 1.5 mm	14	10	12.8	12.8	4	93774A270	000000	93741A270	0000000




						18-8 Stainless Steel

						M14 x 1.5 mm	14	10	12.8	12.8	4	93543A210	00000	93741A270	000000

Weld Nuts

Add permanent threads to thin metal with our go-to weld nuts. Unlike press-fit and rivet nuts, these nuts fuse to the base metal, so they won’t twist and pull out. Three evenly spaced projections concentrate heat away from the threads to prevent them from deforming and create consistent welds. All have a collar pilot that guides the nut into the hole, holds it in place while welding, and protects the threads from weld spatter. You can also install them on thick pieces of metal.

Steel—Best for dry environments since moisture will cause them to rust. Made of uncoated steel, these nuts require minimal prep. Weld them to uncoated steel surfaces.

				Collar, mm
	Thread Size	Wd., mm	Ht., mm	Dia.	Ht.	For Hole Dia., mm	Specs. Met	Pkg. Qty.		Pkg.
Steel



		M14 × 2 mm	22	9.2	16.8	1.8	16.8	DIN 929	10	93337A800	000000

Steel Socket Nuts

Also known as Allen nuts, use these with socket head cap screws in recessed holes and tight spaces that don't have enough clearance for a wrench. Tighten them with a 6-point hex key. They can also be used as an insert by pressing or drawing them into nonhardened steel, cast iron, or soft nonferrous metal or by molding them into plastic, ceramic, fiber, and similar materials. Made from alloy steel, they're comparable in strength to Grade 9 bolts.

	OD, mm	Ht., mm	Threading	Thread Dp., mm	For Hole Dia., mm	Hex Key Size		Each
Alloy Steel



	M14 × 2 mm	20	24	Partially Threaded	11.4	21.1	1/2"	92066A121	00000

Stainless Steel Socket Nuts

These nuts are chemical resistant and may be mildly magnetic. Also known as Allen nuts, use them with socket head cap screws in recessed holes and tight spaces that don't have enough clearance for a wrench. Tighten them with a 6-point hex key. They can also be used as an insert by pressing or drawing them into nonhardened steel, cast iron, or soft nonferrous metal or by molding them into plastic, ceramic, fiber, and similar materials.

	OD, mm	Ht., mm	Threading	Thread Dp., mm	For Hole Dia., mm	Hex Key Size		Each
18-8 Stainless Steel



	M14 × 2 mm	20	21.3	Partially Threaded	11.4	21.1	1/2"	90372A125	000000

Key-Locking Threaded Insert Blank Drivers

Hand thread an insert blank into a tapped hole before placing the tip of these tools on the insert. Strike the tool with a hammer to drive the keys into your material.

	Handle Style		Each
Metric Thread



	M14	Straight	93741A270	0000000

Square Weld Nuts

With four symmetrical projections, these nuts create the strongest hold in our offering. Unlike rectangular weld nuts, each projection is equidistant from the threads, so welds wrap evenly for extra strength and twist resistance. Projections concentrate heat away from the threads to prevent them from deforming and create consistent welds. All nuts have a collar pilot that guides them into the hole, holds them in place while welding, and protects the threads from weld spatter.

Steel—Best for dry environments since moisture will cause them to rust. Made of uncoated steel, these nuts require minimal prep. Weld them to uncoated steel surfaces.

	Wd., mm	Ht., mm	For Hole Dia., mm	Specs. Met	Pkg. Qty.		Pkg.
Steel



	M14 × 2 mm	22	11	16.8	DIN 928	5	93975A121	000000

Air-Powered Key-Locking Threaded Insert Installation Tools

Install key-locking inserts in a flash. Instead of threading and hammering inserts in by hand, these air-powered tools do both steps with the pull of a trigger. Release the trigger and the tool automatically resets, ready for the next insert. They’re compatible with Keensert inserts.

				Air Inlet
Threaded Insert Tool Cycle Time, sec.	Max. Speed @ 90 psi, rpm	Wt., lb.	Average Air Consumption @ Pressure	Pipe Size	Thread Type	Gender	Includes	Container Type		Each
10	2,000	4.4	1.4 ft³/min @ 90 psi	1/4	NPTF	Female	One Nosepiece for 1/4-20 Thread Size One Nosepiece for 3/8-16 Thread Size One Nosepiece for 5/16-18 Thread Size One Nosepiece for 10-24 Thread Size	Plastic Case	91456A121	000000000

Nosepieces

Choose a nosepiece that matches the internal thread size of your insert.

	For Tap Thread Size		Each
For Thin-Wall Inserts, Thick-Wall Inserts, and Extra-Thick Wall Inserts



	10-24	5/16"-18, 3/8"-16, 7/16"-14	91456A211	0000000


	10-32	5/16"-18, 3/8"-16, 7/16"-14	91456A212	000000
	1/4"-20	3/8"-16, 7/16"-14, 1/2"-13	91456A213	000000
	1/4"-28	3/8"-16, 7/16"-14, 1/2"-13	91456A214	000000
	5/16"-18	7/16"-14, 1/2"-13, 9/16"-12	91456A215	000000
	5/16"-24	7/16"-14, 1/2"-13, 9/16"-12	91456A216	000000
	3/8"-16	1/2"-13, 9/16"-12, 5/8"-11	91456A217	000000
	3/8"-24	1/2"-13, 9/16"-12, 5/8"-11	91456A218	000000
	1/2"-13	5/8"-11, 11/16"-11, 13/16"-16	91456A219	000000
	1/2"-20	5/8"-11, 11/16"-11, 13/16"-16	91456A221	000000
	M5 × 0.8 mm	M8 × 1.25 mm, M10 × 1.25 mm	91456A621	000000


	M6 × 1 mm	M10 × 1.25 mm, M12 × 1.25 mm	91456A622	000000
	M8 × 1.25 mm	M12 × 1.25 mm, M14 × 1.5 mm	91456A623	000000
	M10 × 1.5 mm	M14 × 1.5 mm, M16 × 1.5 mm	91456A624	000000
	M12 × 1.75 mm	M16 × 1.5 mm, M18 × 1.5 mm	91456A625	000000

Helical Threaded Insert Installation and Prong Break-Off Tools

T-Handle

Install helical inserts and break off prongs with one tool and a hammer strike. These tools have a slot that grips your insert’s prong for turning both left- and right-hand threads. Slide an insert onto these tools and drive them a quarter-turn to half-turn below the material’s surface. Then, strike the end of the tool with a hammer to break off the prong. These tools work with pronged helical inserts.

For Pipe Size	Handle Style		Each



9/16"-12, 9/16"-18, M14 × 1 mm, M14 × 1.25 mm, M14 × 1.5 mm, M14 × 2 mm, M15 × 1.5 mm, M15 × 2 mm	1/4 BSPP, 1/4 NPT	T-Handle	92450A184	000000

Helical Threaded Insert Installation Tools

No Handle

Install your pronged helical inserts into tapped holes. Screw an insert onto these tools and drive them a quarter to half-turn below the material’s surface.

Square Shank—These tools don’t have a handle. Attach them to a tap wrench to turn.

	Shank Type	For Use With		Each
Metric Thread



	M14 × 1.5 mm	Square	Helical Inserts, Screw-Locking Helical Inserts	93060A108	000000


	M14 × 2 mm	Square	Helical Inserts, Screw-Locking Helical Inserts	93060A109	00000