Metric Manifolds | McMaster-Carr

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31 Products

How to Identify and Measure Fittings

Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.

How to Measure Threaded Pipe Size

Right-Angle Flow Rectangular Manifolds

Distribute air or fluid to multiple locations from a single supply source with these manifolds. They are also known as headers. They have mounting holes, so you can mount from the top or side.

Aluminum manifolds are the industry standard for the most common types of applications. They are lighter in weight than other metal manifolds and have good corrosion resistance. Anodized aluminum manifolds have a black finish and nickel-plated aluminum manifolds have a shiny finish.

Use a plug (sold separately) to close off any unused inlets and outlets.

For technical drawings and 3-D models, click on a part number.

Anodized Aluminum—Metric Inlets × Metric Outlets

Outlets on One Side

For Use With: Air, Water, Hydraulic Fluid
Temperature Range: See table
Maximum Pressure:
Air: 1,000 psi @ 72° F
Water: 1,000 psi @ 72° F
Hydraulic Fluid: See table
Maximum Vacuum: 27 in. of Hg @ 72° F

	Inlet		Outlet
No. of Outlets	Thread Size	Thread Pitch, mm	Thread Size	Thread Pitch, mm	Lg., mm	Wd., mm	Ht., mm	Outlet Ctr.-to-Ctr., mm	Color	Maximum Pressure, Hydraulic Fluid	Temperature Range, °F		Each
Outlets on One Side—Standard Outlet Spacing
2	M5	0.8	M3	0.5	44	19	19	19	Black	3,000 psi @ 72° F	-65° to 250°	00000000	000000
3	M5	0.8	M3	0.5	60	19	19	16	Black	3,000 psi @ 72° F	-65° to 250°	00000000	00000
4	M8	1.25	M5	0.8	76	19	19	16	Black	3,000 psi @ 72° F	-65° to 250°	00000000	00000
4	M12	1.25	M10	1.25	82	25	25	16	Black	1,000 psi @ 72° F	-10° to 200°	0000000	00000
4	M14	1.5	M12	1.25	105	32	32	22	Black	1,000 psi @ 72° F	-10° to 200°	0000000	00000
6	M5	0.8	M3	0.5	120	19	19	19	Black	3,000 psi @ 72° F	-65° to 250°	00000000	00000
6	M8	1.25	M6	1	108	19	19	16	Black	3,000 psi @ 72° F	-65° to 250°	00000000	00000

Plugs

Aluminum—Metric
Thread Size	Thread Pitch, mm	Drive	Pressure Class	Max. Pressure		Each
M3	0.5	External Hex	150	150 psi @ 72° F	00000000	00000
M5	0.8	External Hex	__	1,000 psi @ 72° F	00000000	0000
M8	1.25	External Hex	__	1,000 psi @ 72° F	00000000	0000
M10	1.25	External Hex	150	150 psi @ 72° F	00000000	0000
M12	1.25	External Hex	150	150 psi @ 72° F	00000000	0000

Low-Profile Hex Manifolds

When you’re short on vertical space, these manifolds are a good fit—they have outlets on the side instead of on top, so they have a lower profile than rectangular manifolds. Use them to distribute air, water, or hydraulic fluid to five locations from a single supply source. Manifolds have mounting holes, so you can mount from the top.

Anodized aluminum manifolds are the industry standard for the most common types of applications. They are lighter in weight than other metal manifolds and have good corrosion resistance. These manifolds are anodized for a black finish.

316 stainless steel manifolds have excellent corrosion resistance and can handle fuel, gasoline, coolant and other harsh substances.

Use a plug (sold separately) to close off any unused inlets and outlets.

For technical drawings and 3-D models, click on a part number.

Anodized Aluminum—Metric Inlets × Metric Outlets

For Use With: Air, Water, Hydraulic Fluid
Temperature Range: -10° to 200° F
Maximum Pressure: 1,000 psi @ 72° F
Maximum Vacuum: 27 in. of Hg @ 72° F

	Inlet		Outlet
No. of Outlets	Thread Size	Thread Pitch, mm	Thread Size	Thread Pitch, mm	Wd., mm	Ht., mm	Outlet Spacing	Color		Each
5	M6	1	M3	0.5	45	19	Standard	Black	00000000	000000
5	M8	1	M6	1	45	19	Standard	Black	00000000	00000
5	M10	1	M8	1	38.1	19	Standard	Black	00000000	00000
5	M12	1.5	M10	1	47	19	Standard	Black	00000000	00000
5	M14	1.5	M12	1.5	47	19	Standard	Black	00000000	000000
5	M16	1.5	M14	1.5	47	25	Standard	Black	00000000	000000
5	M20	1.5	M18	1.5	50	31	Standard	Black	00000000	000000
5	M22	1.5	M20	1.5	50	38	Standard	Black	00000000	000000

316 Stainless Steel—Metric Inlets × Metric Outlets

For Use With: Air, Water, Hydraulic Fluid, Alcohol, Coolant, Cutting Oil, Deionized Water, Diesel Fuel, Fuel Oil, Gasoline, Mineral Oil, Nitrogen
Temperature Range: -100° to 500° F
Maximum Pressure: 3,500 psi @ 72° F
Maximum Vacuum: 27 in. of Hg @ 72° F

	Inlet		Outlet
No. of Outlets	Thread Size	Thread Pitch, mm	Thread Size	Thread Pitch, mm	Wd., mm	Ht., mm	Outlet Spacing		Each
5	M6	1	M3	0.5	45	19	Standard	00000000	0000000
5	M8	1	M6	1	45	19	Standard	00000000	000000
5	M10	1	M8	1	45	19	Standard	00000000	000000
5	M12	1.5	M10	1	47	19	Standard	00000000	000000
5	M14	1.5	M12	1.5	47	19	Standard	00000000	000000
5	M16	1.5	M14	1.5	47	25	Standard	00000000	000000
5	M20	1.5	M18	1.5	50	31	Standard	00000000	000000
5	M22	1.5	M20	1.5	50	38	Standard	00000000	000000

Plugs

			External Hex Drive
Thread Size	Thread Pitch, mm	Max. Pressure	Pressure Class		Each
Aluminum—Metric
M3	0.5	150 psi @ 72° F	150	00000000	00000
M6	1	150 psi @ 72° F	150	00000000	0000

Straight-Flow Junction Blocks

Use these junction blocks to organize and separate multiple lines in your system. They have threaded holes that allow air, water, or hydraulic fluid to flow straight through the block. They have mounting holes, so you can mount from the side.

Anodized aluminum junction blocks are lightweight with good corrosion and wear resistance.

For technical drawings and 3-D models, click on a part number.

Anodized Aluminum—Metric Inlets × Metric Outlets

For Use With: Air, Water, Hydraulic Fluid
Temperature Range: -10° to 200° F
Maximum Pressure:
Air: 1,000 psi @ 72° F
Water: 1,000 psi @ 72° F
Hydraulic Fluid: 3,000 psi @ 72° F
Maximum Vacuum: Not Rated

	Inlet		Outlet
No. of Outlets	Thread Size	Thread Pitch, mm	Thread Size	Thread Pitch, mm	Lg., mm	Wd., mm	Ht., mm	Outlet Ctr.-to-Ctr., mm	Outlet Spacing	Color		Each
4	M6	1	M6	1	102	19	19	16	Standard	Black	00000000	000000
4	M8	1.25	M8	1.25	127	19	19	16	Standard	Black	00000000	00000