M24 Adapters | McMaster-Carr

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38 Products

About Pipe and Fittings

Measure your pipe and fittings to identify their pipe size, thread size, schedule, and thread type. Then, find compatible components.

Extreme-Pressure Iron and Steel Threaded Pipe Fittings

The strongest steel fittings we offer, these can withstand extreme-pressure applications.

Note: The maximum pressure listed for Class 6000 fittings is for conditions where there are no sudden changes in pressure or velocity. Please refer to ASME B16.11 to determine the specific maximum operating pressure for your application.

Straight Adapters with Gasket

Male x Male

Zinc-Plated Steel—Zinc-plated steel fittings have better corrosion resistance than plain steel fittings.

	Thread Size (B)	Dash Size (A)	Body Shape	Material	Max. Pressure @ Temp.	Gasket Material		Each
BSPP Male × Metric Male



	3/4	M24 × 1.5 mm	12	Hex	Zinc-Plated Steel	3,500 psi @ 72° F	Buna-N	4936K761	000000

Hex-Drive Plugs with Gasket

Male,

Threaded

Fitting

Connection

Zinc-Plated Steel—Zinc-plated steel fittings have better corrosion resistance than plain steel fittings.

	Material	Max. Pressure @ Temp.	Gasket Material		Each
Metric Male



	M24 × 1.5 mm	Zinc-Plated Steel	5,600 psi @ 72° F	Buna-N	4936K933	000000

External-Hex-Drive Plugs with Gasket

Male

Zinc-Plated Steel—Zinc-plated steel fittings have better corrosion resistance than plain steel fittings.

	Construction	Body Shape	Material	Max. Pressure @ Temp.	Gasket Material		Each
Metric Male



	M24 × 1.5 mm	Solid	Hex	Zinc-Plated Steel	5,600 psi @ 72° F	Buna-N	4936K896	000000

Replacement Washers

	For Thread Size	ID, mm	OD, mm	Thk., mm		Each
For BSPP Male



	3/4	—	24.13	34.93	2.5	4936K636	00000


	For Metric Male



			—	M24	20.11	32	2	4936K655	0000

Low-Pressure Stainless Steel Threaded Pipe Fittings

Use these fittings in a low-pressure pipe line.

Hex-Drive Plugs with Copper Washer

Male

Plugs with copper washer form a tight seal to prevent leaks. Also known as a crush washer, the washer compresses and deforms to fill gaps when tightened. Because it loses its shape when compressed, it’s not reusable. Made of copper, the washer resists rust. These plugs meet either DIN 908 or DIN 910, international standards for pipe plug dimensions.

316 Stainless Steel—Fittings are the most corrosion resistant. They stand up to wet environments, just like 304 stainless steel fittings, but unlike 304 stainless steel, they will not corrode from salt water, chlorine solutions, and chemicals.

		316 Stainless Steel
	Thread Size	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each
Metric Male



		M24 × 1.5 mm	Not Rated	Not Rated	3600N37	000000

External-Hex-Drive Plugs with Copper Washer

Male

				316 Stainless Steel
	Thread Size	Construction	Body Shape	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each
Metric Male



		M24 × 1.5 mm	Solid	Hex	Not Rated	Not Rated	3600N18	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., mm	Drill Bit Size, mm	For Max. Hole Dia., mm	Drive Style	Pkg. Qty.		Pkg.		Each
Standard Wall







				Black Phosphate-Coated Steel

				M16 x 2 mm	M24 x 3 mm	20	21	21	Slotted	1	97084A270	00000	94110A190	000000


				M24 x 3 mm	M36 x 4 mm	30	33	33	Slotted	1	97084A317	00000	94110A250	00000




						18-8 Stainless Steel

						M16 x 2 mm	M24 x 3 mm	20	21	21	Slotted	1	97120A270	0000	94110A190	00000

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

				M18 x 1.5 mm	M24 x 1.5 mm	24	22.5	22.5	4	90245A197	000000	000000	94010A350	000000	2	90245A321	000000


				M24 x 2 mm	M33 x 2 mm	33	31	31	4	90245A217	00000	00000	94010A365	00000	—	———	0
				M24 x 3 mm	M33 x 2 mm	33	31	31	4	90245A213	00000	00000	94010A365	00000	2	90245A341	000000




						18-8 Stainless Steel

						M18 x 1.5 mm	M24 x 1.5 mm	24	22.5	22.5	4	93715A665	00000	00000	94010A350	00000	2	93715A475	000000


						M24 x 3 mm	M33 x 2 mm	33	31	31	4	93715A685	00000	00000	94010A365	00000	—	———	0

Low-Pressure Iron and Steel Threaded Pipe Fittings

Use these fittings for low-pressure applications in noncorrosive environments.

Hex-Drive Plugs with Copper Washer

Male

	Material	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each
Metric Male



	M24 × 1.5 mm	Steel	Not Rated	Not Rated	97313A116	00000

External-Hex-Drive Plugs with Copper Washer

Male

	Construction	Body Shape	Material	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each
Metric Male



	M24 × 1.5 mm	Solid	Hex	Steel	Not Rated	Not Rated	97313A142	00000

Thread-Locking Threaded Insert Assortments

These assortments include various sizes of thread-locking inserts, which won’t back out or loosen from vibration. Also known as E-Z Lok, they come with Loctite® adhesive already applied, and the adhesive reaches full strength after 72 hours. After drilling and tapping your hole, install inserts with a wrench or use an installation bit (not included). 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.

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.

				For Tap
	No. of Inserts Included	Includes	Thread Spacing	Thread Size	Thread Pitch	Drill Bit Size	For Maximum Hole Diameter	Drive Style		Each
Standard Wall







				Black Phosphate-Coated Steel

				33	M8×1.25 mm Thread × 12.5 mm Installed Lg. (10 Each) M10×1.5 mm Thread × 17 mm Installed Lg. (10 Each) M12×1.75 mm Thread × 17 mm Installed Lg. (8 Each) M16×2 mm Thread × 20 mm Installed Lg. (5 Each)	Coarse	M12 M16 M16 M24	1.75 mm 2 mm 2 mm 3 mm	10.4 mm 14 mm 14 mm 21 mm	10.4 mm 14 mm 14 mm 21 mm	Slotted	97084A290	0000000




						18-8 Stainless Steel

						33	M8×1.25 mm Thread × 12.5 mm Installed Lg. (10 Each) M10×1.5 mm Thread × 17 mm Installed Lg. (10 Each) M12×1.75 mm Thread × 17 mm Installed Lg. (8 Each) M16×2 mm Thread × 20 mm Installed Lg. (5 Each)	Coarse	M12 M16 M16 M24	1.75 mm 2 mm 2 mm 3 mm	10.4 mm 14 mm 14 mm 21 mm	10.4 mm 14 mm 14 mm 21 mm	Slotted	97120A035	000000

Ball Joint Rod Ends

Made of steel, these rod ends generally handle higher loads than stainless steel, aluminum, and nylon rod ends. They don’t come lubricated, so you’ll need to lubricate during installation and on an ongoing basis.

Zinc-Plated Carbon Steel—Zinc-plated steel rod ends provide moderate corrosion resistance.

	Shank
	Thread Size	Ctr. Lg., mm	Thread Lg., mm	ID, mm	Max. Ball Swivel	Overall Wd., mm	Overall Thk., mm	Static Radial Load Cap., lb.	Material	Choose a Shank Thread Direction		Each
Ball Joints



		M24 × 2 mm	95	57	25	47°	60	31	23,450	Zinc-Plated Carbon Steel	Right Hand, Left Hand	60645K59	0000000

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.

	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 Cadmium-Plated Steel

				M24 x 3 mm	M33 x 2 mm	33	31	31	4	97255A338	0000000	93904A798	000000

Fully Threaded Rod End Bolts

For maximum mounting flexibility, cut the fully threaded shaft to whatever length you need. Also known as swing bolts and eyebolts, rod end bolts have no moving parts. They're designed to make pivoting or hinge movements in applications that don't need to compensate for misalignment.

	Shank
	Thread Size	Ctr. Lg., mm	Thread Lg., mm	ID, mm	Overall Wd., mm	Shank Threading	Overall Thk., mm	Tensile Strength	Specs. Met		Each
Right-Hand Shank Thread







				Black-Oxide Carbon Steel

				M24 × 3 mm	160	120	22	45	Fully Threaded	25	Not Rated	DIN 444	3798K85	000000

BT Taper to Jacobs Taper Drill Chuck Arbors

Adapt machines with BT taper spindles to hold Jacobs taper drill chucks. These arbors are made of hardened steel to resist wear. Their shank is precision ground to the industry standard AT3 tolerance for a secure fit that minimizes runout in your machine spindle. They meet JIS standards for BT spindles to ensure compatibility. The shank has internal threads for a retention knob, so you can connect them to your machine’s drawbar system.

Strike the top of the shank to seat these arbors onto a drill chuck. To separate them, use a drill chuck removal tool.

For Drill Chuck Taper No.	Overall Lg.	Projection	Material	JIS Specification		Each



BT 50	Jacobs 2, Jacobs 2s	6 21/32"	1 49/64"	Hardened Steel	JIS B 6339	9249N15	0000000


BT 50	Jacobs 33	6 49/64"	1 49/64"	Hardened Steel	JIS B 6339	9249N16	000000

Drill Chucks with BT Taper Integral Arbor


Keyless Chuck	Keyed Chuck

Limit runout and slippage under heavy cutting forces from CNC machines. These chucks have an integrated arbor for a one-piece design that makes them more accurate and compact than chucks with a separate arbor. Made of hardened steel, they resist wear from repeated use. Their shank is precision ground to the industry standard AT3 tolerance for a tight fit in your spindle. They meet JIS standards for compatibility across machines with BT spindles. They have a threaded hole that accepts retention knobs, so they connect to your machine’s drawbar system.

Keyless Chuck—Keyless chucks let you swap bits in and out with a quick twist of the sleeve. As torque increases, their grip will tighten. These chucks only tighten in the clockwise direction, so they may loosen under heavy reverse loads, such as during left-hand drilling. They’re balanced to grade 6.3, so they’re good for most drilling tasks.

Keyed Chuck—Keyed chucks use a worm-and-gear design to deliver exceptional grip on bits for the highest torque and accuracy when drilling in hard materials. They're so strong they can even be used for light duty milling in soft materials such as aluminum. Use their Torx key to tighten and loosen the chuck. Balanced to grade 2.5, they vibrate 60% less than chucks balanced to 6.3 for longer life under heavy use and high speeds. You can route coolant through these chucks to extend the life of your bit and clear chips. For automatic tool identification and tracking, they have a hole for a small RFID tag.

	For Bit Shank Size	Balance Quality Grade	Total Indicated Runout (TIR) Accuracy	Jaw Material	Body Material	Projection	Max. Body Dia.	For Tool Drive Direction	Features	Includes	Certificate Type	JIS Specification		Each
Keyless Chuck



	BT 50	1/32" to 1/2" 1 mm to 13 mm	6.3 mm/s @ 5,000 rpm	0.0016"	Hardened Steel	Hardened Steel	4 5/16"	1.93"	Clockwise	Wrench Flats	—	—	JIS B 6339	9786N13	0000000


	Keyed Chuck



			BT 50	1/32" to 5/8" 1 mm to 16 mm	2.5 mm/s @ 25,000 rpm	0.0008"	Hardened Steel	Hardened Steel	4 3/16"	1.97"	Clockwise, Counterclockwise	Through-Bore Coolant, RFID Tag Hole	Key	Accuracy Certificate	JIS B 6339	9786N15	000000

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

	M18 x 1.5 mm	M24 x 1.5 mm	24	22.5	22.5	4	2	90245A321	000000


	M24 x 3 mm	M33 x 2 mm	33	31	31	4	2	90245A341	000000




			18-8 Stainless Steel

			M18 x 1.5 mm	M24 x 1.5 mm	24	22.5	22.5	4	2	93715A475	000000

BT Taper to Morse Taper Shank Adapters

Adapt machines with BT taper spindles to mount tools with a Morse taper shank, including drill bits, drill chucks, and reamers. These adapters are made of hardened steel to resist wear. Their shank is precision ground to the industry standard AT3 tolerance for a secure fit that minimizes runout in your machine spindle. They meet JIS standards for BT spindles to ensure compatibility. Internal threads on the shank let you attach a retention knob, so you can connect them to your machine’s drawbar system.

Slide your tool into these adapters and then press firmly to seat it. To separate them, use a Morse taper removal tool.

Shank Type	For Machine Taper No.	Projection	Material	JIS Specification		Each
BT 50 Taper	Morse 2	2 3/8"	Hardened Steel	JIS B 6339	9331N18	0000000
BT 50 Taper	Morse 3	5 7/8"	Hardened Steel	JIS B 6339	9331N19	000000
BT 50 Taper	Morse 4	3 3/4"	Hardened Steel	JIS B 6339	9331N21	000000
BT 50 Taper	Morse 5	4 1/8"	Hardened Steel	JIS B 6339	9331N22	000000