M22 Threaded Inserts | McMaster-Carr

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26 Products

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.

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., mm	Drill Bit Size, mm	For Max. Hole Dia., mm	No. of Locking Keys		1-9	10-Up		Each	No. of Inserts Included		Each
Standard Wall







				Black Phosphate-Coated Steel

				M16 x 1.5 mm	M22 x 1.5 mm	22	20.5	20.5	4	90245A193	000000	000000	94010A345	000000	3	90245A316	000000


				M16 x 2 mm	M22 x 1.5 mm	22	20.5	20.5	4	90245A189	00000	00000	94010A345	00000	3	90245A311	00000
				M22 x 1.5 mm	M32 x 2 mm	32	30	30	4	90245A209	00000	00000	94010A360	00000	3	90245A336	000000




						18-8 Stainless Steel

						M16 x 1.5 mm	M22 x 1.5 mm	22	20.5	20.5	4	93715A660	00000	00000	94010A345	00000	3	93715A470	000000


						M16 x 2 mm	M22 x 1.5 mm	22	20.5	20.5	4	93715A655	00000	00000	94010A345	00000	3	93715A465	000000
						M22 x 1.5 mm	M32 x 2 mm	32	30	30	4	93715A680	00000	00000	94010A360	00000	—	———	0

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 Thick-Wall Inserts

	M16	M22	Straight	94010A345	000000


	M22	M32	Straight	94010A360	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, mm	For Max. Hole Dia., mm	No. of Locking Keys	No. of Inserts Included		Each
Standard Wall







	Black Phosphate-Coated Steel

	M16 x 1.5 mm	M22 x 1.5 mm	22	20.5	20.5	4	3	90245A316	000000


	M16 x 2 mm	M22 x 1.5 mm	22	20.5	20.5	4	3	90245A311	00000
	M22 x 1.5 mm	M32 x 2 mm	32	30	30	4	3	90245A336	000000




			18-8 Stainless Steel

			M16 x 1.5 mm	M22 x 1.5 mm	22	20.5	20.5	4	3	93715A470	000000


			M16 x 2 mm	M22 x 1.5 mm	22	20.5	20.5	4	3	93715A465	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	Specs. Met		Each		Each
Standard Wall







				Dry-Film-Lubricated Cadmium-Plated Steel

				M16 x 1.5 mm	M22 x 1.5 mm	22	20.5	20.5	4	NA0150E160	97255A333	000000	93904A794	000000


				M16 x 2 mm	M22 x 1.5 mm	22	20.5	20.5	4	—	97255A332	00000	93904A794	00000




						Dry-Film-Lubricated 18-8 Stainless Steel

						M16 x 2 mm	M22 x 1.5 mm	22	20.5	20.5	4	—	97255A213	00000	93904A794	00000

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

				M16 x 1.5 mm	M22 x 1.5 mm	22	20.5	20.5	4	NA0150-160	95101A165	000000	93904A794	000000

Key-Locking Threaded Insert Installation Tools


Style A	Style D

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 Thick-Wall Inserts



	M16	M22	A	Slotted End	6721N89	000000

Threaded Insert Installation Tools with Spring

Style D

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 Thick-Wall Inserts



	M16	M22	D	Sleeve, Slotted End	93904A794	000000


	M22	M32	D	Sleeve, Slotted End	93904A797	00000

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.

Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.

	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

				M22 x 1.5 mm	22	16	20.5	20.5	4	93774A310	000000	93741A310	0000000




						18-8 Stainless Steel

						M22 x 1.5 mm	22	16	20.5	20.5	4	93543A230	00000	93741A310	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



	M22	Straight	93741A310	0000000

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



7/8"-9, 7/8"-14, M22 × 1.5 mm, M22 × 2 mm, M22 × 2.5 mm	1/2 NPT	T-Handle	92450A188	000000