Metric Thread Adapters | McMaster-Carr

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15,559 Products

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Pipe Fittings

Form threaded, barbed, flanged, and other types of connections between lengths of pipe

Thread Adapters

Thread Adapters

Join threads of a different type, size, and gender

Tube Fittings

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

Conduit and Cord Grip Thread Adapters

Conduit and Cord Grip Thread Adapters

Connect to fittings and openings that have a different thread type

All Results

Fluid Handling

Pipe Fittings

Form threaded, barbed, flanged, and other types of connections between lengths of pipe

Pipe Nipples and Pipe

Pipe Nipples and Pipe

Generally thicker and more rigid than tubing for distributing liquids and gases through your facility

Pipe Flanges

Create an access point in a line by bolting two same-size flanges together with a gasket

Tube Fittings

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

Tube Fitting Sleeves

Tube Fitting Sleeves

Pair with nuts and fittings to form a secure connection on tubing

Tube Fitting Nuts

Tube Fitting Nuts

Tighten to create a strong seal between tube and tube fittings

Tube End Caps

Cover the ends of tube to keep out dirt and debris

Tube Fitting Clamps

Tube Fitting Clamps

Quickly secure connections between tube fittings, including sanitary and high-vacuum fittings

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

Manifolds

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

Junction Blocks

Junction Blocks

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

Duct Hose and Fittings

Duct Hose and Fittings

Connect to blowers and vacuums to move air, fumes, dust, chips, and liquids

Pressure Test Fittings

Pressure Test Fittings

Create a temporary connection point for gauges and other testing equipment

Valve Stem Adapters

Valve Stem Adapters

Connect valve stems to actuators with an ISO 5211 hole pattern

On-Off Valves

Start and stop flow through a line

Fastening and Joining

Thread Adapters

Thread Adapters

Join threads of a different type, size, and gender

Threaded Inserts

Threaded Inserts

Create new threads or repair stripped threads

Weld Nuts

Weld to metal surfaces to add permanent threads

Standoffs

Threaded to separate or connect parts as well as position components in assemblies

Spacers

Unthreaded to create space between two surfaces or objects, often to align them

Studs

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

Screwdriver Bits

Screwdriver Bits

Pair with drivers to turn screws

Socket Inserts

Slip into sockets to keep fasteners from falling out

Electrical

Conduit and Cord Grip Thread Adapters

Conduit and Cord Grip Thread Adapters

Connect to fittings and openings that have a different thread type

Conduit Box Connectors

Conduit Box Connectors

Attach conduit to a knockout in electrical boxes

DIN Rail Mounting Adapters

DIN Rail Mounting Adapters

Attach to components not made for DIN rail and clip on to install

DIN Rail Mounting Brackets

DIN Rail Mounting Brackets

Create space behind rails to fit wiring and bulky components

Electrical Connectors and Cords

Electrical Connectors and Cords

Supply power to equipment by combining plugs, sockets, receptacles, and cords

Switch Mounts

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

Lubricating

Grease Fitting Adapters

Grease Fitting Adapters

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

Coolant Hose and Nozzle Adapters

Coolant Hose and Nozzle Adapters

Connect threaded coolant hose and nozzles to coolant supply ports on equipment such as CNC machines

Coolant Nozzles

Coolant Nozzles

Dispense coolant onto workpieces or tools directly from a tank

Coolant Dispenser Hose and Fittings

Coolant Dispenser Hose and Fittings

Snap together and position to deliver coolant, oil, water, or air in any direction

Power Transmission

Rod Ends

Use with connecting rods to support loads and control steering, tensioning, or pivoting motion

Rod End Nuts

Attach to rods, pipe, and tubing to make pivot and hinge points

Rod End Seals

Keep dirt out and lubrication in to extend the life of rod ends

Rod End Inserts

Rod End Inserts

Attach to rod ends to increase the amount of misalignment they can handle

Swivel Joints

Handle shaft misalignment where ball joint rod ends won’t fit; also known as spherical bearings

Shaft Couplings

Shaft Couplings

Connect two shafts to transfer rotary motion from one to the other

U-Joints

Transfer torque between shafts at an angle; handle more torque and misalignment than flexible shafts

Bearing Adapter Sleeves

Bearing Adapter Sleeves

Close gaps between your bearing and shaft for a tight fit

Pulley and Sprocket Bushings

Pulley and Sprocket Bushings

Mount between a rotating shaft and equipment to secure the shaft and reduce vibration

Air to Hydraulic Power Units

Air to Hydraulic Power Units

Power a hydraulic cylinder with air to avoid the setup, cost, and mess of hydraulic fluid

Air Cylinders

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

Torque Limiters

Torque Limiters

Keep torque at or below a set limit to control tension or braking or protect machinery from overload

Material Handling

Robot Tool Mounts

Robot Tool Mounts

Attach tools or extensions to robot arms

Vacuum Lifter Accessory and Replacement Parts

Vacuum Lifter Accessory and Replacement Parts

Add accessories such as sensors or replace cups and other parts on your vacuum lifter

Vacuum Lifter Dampers

Vacuum Lifter Dampers

Stick onto vacuum lifters to create a soft surface for moving delicate parts

Containers, Storage, and Furniture

Drum Plugs

Seal drum lid openings

Measuring and Inspecting

Outside Micrometer Tips

Outside Micrometer Tips

Adapt your micrometer to measure curved and irregularly shaped objects, such as gear teeth and pipe

Building and Machinery Hardware

Leveling Mount Inserts

Leveling Mount Inserts

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

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