NPT Thread Adapters | McMaster-Carr

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27,013 Products

Most Likely Products

Pipe Fittings

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

7,956 products

Tube Fittings

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

5,773 products

Hose Fittings

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

3,331 products

Thread Adapters

Join threads of a different type, size, and gender

30 products

All Results

Fluid Handling

Pipe Fittings

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

7,956 products

Pipe Nipples and Pipe

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

5,663 products

Pipe Flanges

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

370 products

Pipe Caps

Cover the ends of pipe to keep out dirt and debris

31 products

Pipe Plugs

Insert into the ends of pipe to keep out dirt and debris

83 products

Pipe Locknuts

Thread onto the male end of a pipe fitting so it won't loosen from vibration

2 products

Tube Fittings

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

5,773 products

Hose Fittings

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

3,331 products

Hose Nozzle Swivels

Rotate to prevent hose from kinking, twisting, and wearing

23 products

Air Chucks

Connect air hose to Schrader valves, which are common on tires and hydraulic systems

9 products

Manifolds

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

505 products

Junction Blocks

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

66 products

Orifice Valves

Restrict the flow of liquids and gases to precisely control rate and pressure

56 products

On-Off Valves

Start and stop flow through a line

630 products

Diverting Valves

Redirect flow between ports

11 products

Sampling Valves

Drain a small amount of fluid for inspection without disrupting flow

7 products

Pressure Test Fittings

Create a temporary connection point for gauges and other testing equipment

28 products

Thermocouple and RTD Mounts

Join thermocouple connectors and probes that have different connection types

7 products

Thermocouple Connectors

Join thermocouple probes and wire to thermometers and control panels

6 products

Filter Housings

Use with filter cartridges to remove particles from liquid

3 products

Fastening and Joining

Thread Adapters

Join threads of a different type, size, and gender

30 products

Electrical

Conduit and Cord Grip Thread Adapters

Connect to fittings and openings that have a different thread type

24 products

Conduit Box Connectors

Attach conduit to a knockout in electrical boxes

231 products

Conduit-to-Conduit Connectors

Join pieces of conduit

5 products

Conduit Bodies

Access wiring to pull, splice, or redirect it

54 products

Lubricating

Grease Fitting Adapters

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

33 products

Coolant Dispenser Hose and Fittings

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

16 products

Coolant Hose and Nozzle Adapters

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

4 products

Containers, Storage, and Furniture

Drum-Plug Adapters

Screw into plastic drum openings to replace threads that can become damaged with frequent use

1 product

Drum Plugs

Seal drum lid openings

2 products

Fabricating and Machining

Pipe Threader Adapters

Pair with pipe threaders to cut pipe and conduit of different sizes

9 products

Pipe Threader Die Head Wrenches

Pair with a Ridgid die head and dies to cut pipe and conduit threads

5 products

Pipe Threader Die Heads

Attach to your Ridgid ratcheting or electric threader to cut external pipe and conduit threads

22 products

Pipe Threaders

Cut external threads in pipe and conduit with ratcheting action or electric power

30 products

Pipe Threader Dies

Install in the die head on your Ridgid pipe threader to cut external pipe and conduit threads

55 products

Facility and Grounds Maintenance

Sink Drain Fittings

Connect tailpieces, traps, and extension tubing to drains

6 products

Material Handling

Robot Tool Mounts

Attach tools or extensions to robot arms

1 product