Metric Couplings | McMaster-Carr

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System of Measurement

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Thread Pitch

Material

Stainless Steel

Gender

Fitting Type

Reducing Adapter

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Shape

Double 90° Elbow

Nut Type

Externally Threaded

Tube OD

Threading

Partially Threaded

Fitting Connection

Push to Connect

Quick Disconnect

Spec Image

Connects To

For Use With

Pipe Size

Width

OD

Finish

Aluminum Plated

Black Zinc Plated

DFARS Specialty Metals

REACH

Export Control Classification Number (ECCN)

RoHS

Compliant with Exemptions

Specifications Met

Fed. Spec. QQ-A-200/8

Regulation (EC) No. 1935/2004

Maximum Pressure @ Temperature

30 psi @ 72° F

70 psi @ 72° F

100 psi @ 72° F

120 psi @ 72° F

125 psi @ 72° F

140 psi @ 72° F

145 psi @ 72° F

150 psi @ 72° F

230 psi @ 72° F

250 psi @ 72° F

270 psi @ 72° F

290 psi @ 72° F

300 psi @ 72° F

345 psi @ 72° F

350 psi @ 72° F

435 psi @ 72° F

500 psi @ 72° F

550 psi @ 72° F

Coupling Nut Profile

How can we improve?

1,391 Products

Fluid Handling

Pipe and Fittings

Pipe and Fittings

Generally thicker and more rigid than tubing for distributing liquids and gases

Tube Fittings

Make threaded, push to connect, barbed, and other types of connections between lengths of tube

Hose Fittings

Create threaded, barbed, quick-disconnect, and other types of connections between lengths of hose

Hose Fitting Nuts

Hose Fitting Nuts

Connect fittings and compressed-gas nipples to pressure regulators and torches

Fastening and Joining

Coupling Nuts

Connect and extend threaded rods

Thread Adapters

Thread Adapters

Join threads of a different type, size, and gender

Hanger Bolts

Suspend pipe and other fixtures with wire or cable ties

Electrical

Electrical Adapters

Electrical Adapters

Change electrical connectors to another type, size, or gender

Conduit Box Connectors

Conduit Box Connectors

Attach conduit to a knockout in electrical boxes

Lubricating

Grease Fitting Adapters

Grease Fitting Adapters

Mate grease fittings when the sizes and thread types don't match

Grease Gun Tips

Grease Gun Tips

Attach to grease gun nozzles and direct a stream of lubricant into grease fittings on machinery

Grease Gun Nozzles

Grease Gun Nozzles

Replace nozzles on grease guns

Power Transmission

Precision Lead Screw Nuts

Precision Lead Screw Nuts

Pair with precision lead screws for accurate starts and stops in your assembly

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)