Metric Thread Adapters | McMaster-Carr

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UN/UNF (SAE Straight)

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Connects To

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For Use With

Tube OD

For Tap Thread Size

Length

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Export Control Classification Number (ECCN)

2B999

EAR99

Maximum Pressure @ Temperature

Threaded Insert Type

RoHS

Compliant with Exemptions

Not Compliant

DFARS Specialty Metals

REACH

Dash Size

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1,845 Products

Fluid Handling

Pipe and Fittings

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

372 products

Tube Fittings

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

467 products

Hose Fittings

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

140 products

Hose Fitting Nuts

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

1 product

Manifolds

Distribute air or fluid to multiple places from a single source; also called headers

23 products

Junction Blocks

Organize and separate multiple lines in a pipe system; air and fluid flow through the threaded holes

2 products

Pressure Test Plugs

Tighten onto equipment to check pressure without permanently installing a gauge

3 products

Electrical

Conduit and Cord Grip Thread Adapters

Connect to fittings and openings that have a different thread type

28 products

Conduit Box Connectors

Attach conduit to a knockout in electrical boxes

33 products

Metric Circular Adapters

Join connectors of different sizes, configurations, or types

20 products

Metric Circular Plugs

Pair with sockets or receptacles to make metric connections

1 product

RJ45 Adapters

Connect two Ethernet cords together

9 products

USB Adapters

Connect mismatched USB cords and devices

8 products

HDMI Adapters

Convert one HDMI size or style to another

1 product

Power Receptacles

Install in a wall or panel to transmit power to plugs or sockets

2 products

Metric Circular Cords

Send power and signal to equipment with metric connections

13 products

USB Cords

Transfer data between computers, printers, and mobile devices

17 products

Switch Mounts

Mount sensor switches to panel cutouts, tank walls, or conveyors

1 product

Fastening and Joining

Thread Adapters

Join threads of a different type, size, and gender

10 products

Threaded Inserts

Create new threads or repair stripped threads

229 products

Weld Nuts

Weld to metal surfaces to add permanent threads

133 products

Adhesive-Mount Nuts

Attach threads to material that’s too thin for a threaded insert

66 products

Studs

Press, weld, or screw in place to add a threaded fastening point

6 products

Lubricating

Grease Fitting Adapters

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

11 products

Grease Gun Tips

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

5 products

Grease Gun Nozzles

Replace nozzles on grease guns

2 products

Power Transmission

Hydraulic Cylinder Mounts

Restrain cylinders and secure loads to the end of the rod

1 product

Air Cylinder Mounts

Secure air cylinders to surfaces with brackets, rod clevises, and flanges

13 products

Air Cylinders

Push and pull loads to do everything from stamping materials to sorting parts on conveyors

17 products

Containers, Storage, and Furniture

Drum Plugs

Seal drum lid openings

4 products

Material Handling

Gripper Compensation Devices

Let grippers grab uneven parts to avoid jams during assembly, picking, and machine tending

13 products

Building and Machinery Hardware

Positioning Arms

Mount and position tools, small electronics, and displays

1 product

Leveling Mount Inserts

Slip onto equipment and furniture to add threaded-stud leveling feet

15 products