Threaded Connectors | McMaster-Carr

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45,753 Products

Fluid Handling

Pipe Fittings

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

12,632 products

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

Expansion Joints

Expansion Joints

Reduce stress, vibration, and noise in piping systems by absorbing movement

Rotary Unions

Transfer air, water, oil, and steam from supply lines to continuously revolving drums and rollers

Pipe Fitting Clamps

Pipe Fitting Clamps

Connect easy-access and grooved-end pipe fittings to pipe

Pipe Caps

Cover the ends of pipe to keep out dirt and debris

Pipe Bleed Rings

Pipe Bleed Rings

Access inside a pipe line to vent pressure, drain liquid, and take samples

Tube Fittings

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

Tube Fitting Rings

Tube Fitting Rings

Prevent leaks at tubing connection points

Tube Fitting Nuts

Tube Fitting Nuts

Tighten to create a strong seal between tube and tube fittings

Tube End Plugs

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

Tube End Caps

Cover the ends of tube to keep out dirt and debris

Hose Fittings

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

Hose

Flexible and stronger than tubing; often used to convey liquids and gases under pressure

Hose Fitting Nuts

Hose Fitting Nuts

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

Hose Nozzle Swivels

Hose Nozzle Swivels

Rotate to prevent hose from kinking, twisting, and wearing

Hose End Caps

Cover the ends of hose to keep out dirt and debris

Air Chucks

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

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

Hose Kink Absorbers

Hose Kink Absorbers

Prevent garden hose from kinking to ensure maximum water flow and extend hose life

Hose Crimpers

Crimp ferrules onto hose to secure fittings

Orifice Valves

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

Diverting Valves

Diverting Valves

Redirect flow between ports

Propane Tank Valves

Propane Tank Valves

Start and stop the flow of propane from a tank

Float Valve Bodies

Float Valve Bodies

Pair with floats and rods to create float valves that meet your needs

Pressure Test Fittings

Pressure Test Fittings

Create a temporary connection point for gauges and other testing equipment

Flow Sights

Visually confirm flow and inspect liquid color and clarity

Flowmeters

Measure the flow rate of a liquid or gas

Thermocouple and RTD Mounts

Thermocouple and RTD Mounts

Join thermocouple connectors and probes that have different connection types

Thermocouple Connectors

Thermocouple Connectors

Join thermocouple probes and wire to thermometers and control panels

Strainers

Install next to valves and pumps to catch debris in your line

Electrical

Conduit Bodies

Access wiring to pull, splice, or redirect it

Conduit-to-Conduit Connectors

Conduit-to-Conduit Connectors

Join pieces of conduit

Conduit Box Connectors

Conduit Box Connectors

Attach conduit to a knockout in electrical boxes

Conduit Locknuts

Conduit Locknuts

Secure threaded conduit fittings to knockouts in electrical boxes

Conduit Bushings

Conduit Bushings

Guard wiring from sharp edges at the ends of conduit

Conduit

Protect wiring from impact and the environment in runs indoors, outdoors, and underground

Outlet Boxes

House electrical components such as on-off switches, receptacles, and dimmer knobs

Grounding Rods

Link an electrical system to a ground

Fastening and Joining

Coupling Nuts

Connect and extend threaded rods

Standoffs

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

Standoff Caps

Create a finished look on standoffs and protect them from dirt and debris

Binding Barrels and Screws

Binding Barrels and Screws

Thread together for a low-profile fastener

Studs

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

Hanger Bolts

Suspend pipe and other fixtures with wire or cable ties

Joint Clamps for Wood

Joint Clamps for Wood

Make secure joints between boards, butcher blocks, and countertops

Fastener Assortments

Fastener Assortments

Stay prepared by keeping fasteners in common sizes and materials on hand

Thread Adapters

Thread Adapters

Join threads of a different type, size, and gender

Weld Nuts

Weld to metal surfaces to add permanent threads

Single-End Studs

Single-End Studs

Use the unthreaded end as a pivot point, hinge, shaft, or locator pin

Brazing Rings

Snap into metal pipe and tubing to form leak-resistant joints more quickly than with hand-fed alloys

Building and Machinery Hardware

Positioning Arms

Positioning Arms

Mount and position tools, small electronics, and displays

Tripod Head Adapters

Tripod Head Adapters

Mount ball-grip components such as arms and device grips to the top of tripods

T-Slotted Framing and Fittings

T-Slotted Framing and Fittings

The most versatile system, attach fittings along the continuous slots to build virtually anything

Containers, Storage, and Furniture

Drum-Plug Adapters

Drum-Plug Adapters

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

Drum Faucets

Control the flow of liquid from drums, tanks, carboys, and other containers

Drum Vents

Prevent drum failure by releasing pressure and vacuum buildup

Drum-Plug Caps

Access inside drums to fill them

Drum Plugs

Seal drum lid openings

Syringe Thread Adapters

Syringe Thread Adapters

Change connections on syringes, dispensing tips, and needles to luer lock or threaded connections

Lubricating

Coolant Dispenser Hose and Fittings

Coolant Dispenser Hose and Fittings

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

Coolant Nozzles

Coolant Nozzles

Dispense coolant onto workpieces or tools directly from a tank

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

Grease Gun Tips

Grease Gun Tips

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

Grease Gun Tip Adapters

Grease Gun Tip Adapters

Quickly switch between standard, button-head, and flush-style grease fittings

Grease Gun Nozzles

Grease Gun Nozzles

Replace nozzles on grease guns

Measuring and Inspecting

Hose Coupling Size-Identification Kits

Hose Coupling Size-Identification Kits

Match your hose coupling to one of the plugs to determine its size without measuring

Power Transmission

Connecting Rods

Connecting Rods

Use with rod ends and swivel joints to link components in push/pull assemblies

Lighting

Lamp Pipe

Connect lamp components and conceal wires when building or repairing lamps

Light Sockets

Install or replace sockets in fixtures for standard household, tubular, compact, or miniature bulbs

Facility and Grounds Maintenance

Faucet Spout Thread Adapters

Faucet Spout Thread Adapters

Connect the female end of your garden hose to a faucet spout

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