Plugs | McMaster-Carr

Filter by

System of Measurement

Pipe Size

Material

Fitting Type

Reducing Adapter

Thread Type

Chicago Fire Department

Drive Style

External 12-Point

External Octagon

External Square

Tamper-Resistant Torx

Shape

Adjustable-Angle Elbow

Gender

For Use With

Abrasive Materials

Alcohol-Based Solvents

Bare Stranded Wire

Deutsch Style Connectors

Thread Size

Pipe Material

Stainless Steel

ID

1/64" to 11/16"

1/64" to 23/32"

1/64" to 1 1/8"

1/64" to 1 1/4"

Color

Length

Maximum Pressure @ Temperature

10 psi @ 70° F

20 psi @ 70° F

25 psi @ 70° F

30 psi @ 70° F

50 psi @ 70° F

60 psi @ 70° F

65 psi @ 70° F

70 psi @ 70° F

75 psi @ 70° F

90 psi @ 70° F

100 psi @ 70° F

125 psi @ 70° F

150 psi @ 70° F

175 psi @ 70° F

180 psi @ 70° F

200 psi @ 70° F

225 psi @ 70° F

230 psi @ 70° F

Body Shape

Voltage

100V AC to 240V AC

Attachment Type

Band-and-Buckle Clamp

Crimp-On Hose Ferrule

Worm-Drive Clamp

Plug Connection Method

Drive Size

RoHS

Compliant with Exemptions

REACH

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

DFARS Specialty Metals

Export Control Classification Number (ECCN)

How can we improve?

26,679 Products

Most Likely Products

Pipe Plugs

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

Protective Plugs

Protective Plugs

Insert into holes in pipe, containers, panels, and parts to keep out debris

Power Connectors

Power Connectors

Plugs, sockets, receptacles, and other connectors for powering equipment

All Results

Fluid Handling

Pipe Plugs

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

Pipe Caps

Cover the ends of pipe to keep out dirt and debris

Pipe Flanges

Bolt together with a gasket to create an access point within a line

Pipe Straights

Join lengths of pipe to send contents in one direction

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

Tube Fittings

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

Tube End Cap and Plug Kits

Tube End Cap and Plug Kits

Cover or insert into the ends of tube fittings to keep out dirt and debris

Tubing Flow Stops

Tubing Flow Stops

Temporarily block water flow to make soldering repairs without waiting for your line to drain

Hose and Hose Fittings

Hose and Hose Fittings

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

Expansion Plugs

Expansion Plugs

Seal pipe and tubing lines when checking for leaks

Bore Sealing Plugs

Bore Sealing Plugs

Permanently seal unthreaded holes in pneumatic and hydraulic components

Drain Valves

Vent air or discharge liquids to remove excess fluid from your system

Bore Sealing Plug Installation Tools

Bore Sealing Plug Installation Tools

Set sealing plugs into unthreaded holes in pneumatic and hydraulic components

Breather Vents

Maintain even pressure and vacuum as temperatures change by allowing airflow in tanks and enclosures

Pressure Test Fittings

Pressure Test Fittings

Create a temporary connection point for gauges and other testing equipment

Pressure-Relief Valves

Pressure-Relief Valves

Protect equipment by opening at a set pressure and closing when the pressure drops; for repeated use

Sights

Observe and monitor the contents of pipes, tanks, and other containers

Liquid-Level Gauges

Liquid-Level Gauges

Monitor fluid levels in containers

Heat Exchanger Plugs

Heat Exchanger Plugs

Plug leaky internal tubes in heat exchangers

Heating Elements

Heating Elements

Turn electrical current into heat

Corrosion-Inhibiting Rods and Pads

Corrosion-Inhibiting Rods and Pads

Protect tanks, water heaters, and heat exchangers from rust; also known as sacrificial anodes

Building and Machinery Hardware

Protective Plugs

Protective Plugs

Insert into holes in pipe, containers, panels, and parts to keep out debris

Protective Caps

Protective Caps

Protect just about anything, including pipe, flanges, screws, and posts

Grommets

Protect wire, cable, and cords from holes with sharp or rough edges

Bumpers

Absorb impact to protect equipment and surfaces from dents and scuffs

Countertop Trash Chutes

Countertop Trash Chutes

Finish the hole over a waste container

Vibration-Damping Mounts

Vibration-Damping Mounts

Attach to machinery to reduce vibration and noise and extend service life

Slip-On Framing and Fittings

Slip-On Framing and Fittings

Insert rails into fittings and tighten screws to make guards, railings, and racks

Strut Channel Framing and Fittings

Strut Channel Framing and Fittings

Secure fittings in the U-shaped channel to route conduit and pipe or build other structures

Electrical Power, Networking, and Controlling

Power Connectors

Power Connectors

Plugs, sockets, receptacles, and other connectors for powering equipment

Latching Connectors

Latching Connectors

Protect connections in wet or harsh environments while keeping them accessible

Metric Circular Connectors

Metric Circular Connectors

Plugs, sockets, receptacles, and adapters for equipment with metric connections

Molex Connectors

Molex Connectors

Plugs, sockets, and housings for making Molex connections

Solenoid Valve Connectors

Solenoid Valve Connectors

Sockets and receptacles to connect solenoid components, such as valves and motors

Mil. Spec. Connectors

Mil. Spec. Connectors

Meet strict military standards or are compatible with Mil. Spec. connectors

RJ45 Connectors

RJ45 Connectors

Plugs, sockets, and receptacles to make Ethernet connections

Ballast Connectors

Ballast Connectors

Avoid exposure to live wires when replacing fluorescent ballasts

D-Sub Connectors

D-Sub Connectors

Plugs, sockets, receptacles, and adapters for connecting computers, monitors, and printers

Mini Connectors

Mini Connectors

Plugs, sockets, and receptacles send power and control signals to equipment and automated systems

Coaxial Connectors

Coaxial Connectors

Plugs, sockets, receptacles, and adapters to make coaxial connections

AMP Connectors

Build-your-own and ready-to-use AMP connectors

Audio Connectors

Audio Connectors

Plugs, sockets, receptacles, and adapters to make audio connections

Power Connector Seals

Power Connector Seals

Add to the front or back of connectors to block out dust, debris, and weather

USB Connectors

Plugs, sockets, receptacles, and adapters to make USB connections

Strain-Relief Connector Boots

Strain-Relief Connector Boots

Protect connectors and cords from strain, bends, and pulls

CB Radio Connectors

CB Radio Connectors

Sockets and receptacles to connect CB radios

Sure Seal Connectors

Sure Seal Connectors

A PVC housing keeps out liquids and dust and resists chemicals

Ecomate Connectors

Ecomate Connectors

Connect machine tools, robots, and other vibrating equipment

Amphenol Connectors

Amphenol Connectors

Attach wires to a circuit board

Han Connectors

Plugs and sockets to make Han connections

DisplayPort Connectors

DisplayPort Connectors

Connect two DisplayPort cords of the same gender and connection type

DMX Connectors

Replace damaged plugs and sockets on lighting cables

Micro 360 Connectors

Micro 360 Connectors

Plugs and sockets to make control and data connections in tight spaces

Breakaway Connectors

Breakaway Connectors

If pulled or stressed, these disconnect without damaging cables and equipment

Fiber-Optic Connectors

Fiber-Optic Connectors

Join fiber-optic cords that have the same gender and connection type

RJ45 Connector Repair Clips

RJ45 Connector Repair Clips

Snap onto broken Ethernet plugs to restore their ability to make secure connections

HDMI Adapters

Convert one HDMI size or style to another

RJ45 Connector Security Clips

RJ45 Connector Security Clips

Lock Ethernet cords in place to prevent unauthorized removal from ports

Video Adapters

Convert from one video connection to another

ix Industrial Sockets

ix Industrial Sockets

Pair with plugs to add ix Industrial connections to printed circuit boards

Power Cords

Connect equipment and devices to a power source

Extension Cords

Extension Cords

Extend the reach of power from an outlet

Metric Circular Cords

Metric Circular Cords

Send power and signal to equipment with metric connections

USB Cords

Transfer data between computers, printers, and mobile devices

Solenoid Valve Cords

Solenoid Valve Cords

Connect solenoid components, such as valves and motors

Mini Cords

Often used to send power and control signals to automated systems, motors, and pumps

Extension Cord Circuit Interrupter Converters

Extension Cord Circuit Interrupter Converters

Hardwire to extension cords to protect against electric shock in wet areas

D-Sub Cords

Connect computers, monitors, printers, and other devices with DB connections

Ethernet Cords

Send data between computers, printers, servers, and switches

Coaxial Cords

Transmit audio, video, and data with minimal signal loss

Extension Cord Locks

Extension Cord Locks

Cover mated connectors on extension cords to prevent disconnection

Audio Cords

Hook up speakers to an audio signal

Fiber-Optic Cords

Fiber-Optic Cords

Connect computers, servers, and switches in a fiber-optic network

DisplayPort Cords

DisplayPort Cords

Send video from computers to monitors and other displays

Sensor Signal Adapter Cords

Sensor Signal Adapter Cords

Send data between sensors and receivers that have different signal types

Video Adapter Cords

Video Adapter Cords

Send video between devices with different connections

Thunderbolt Cords

Thunderbolt Cords

Transmit data and video at high speeds between PCs, mobile devices, and displays

HDMI Cords

Send high-definition signals to monitors, TVs, and projectors

Mitutoyo Cords

Connect your measuring tool to miniprocessors, multiplexers, or PCs

Power Cord Holders

Power Cord Holders

Keep extension cords, rope, hose, and chain tangle-free and ready to use

Breakaway Cords

Breakaway Cords

Disconnect if pulled to prevent stress on cord

DMX Cords

Connect to lighting equipment with five-pin XLR connections

Profibus Cords

Transmit data in automation systems and other networks

ix Industrial Cords

ix Industrial Cords

Send data or signals between equipment, such as a servomotor and encoder

Robot Controller Cords

Robot Controller Cords

Extend the distance between a robot arm and a controller

Robot Teach Pendant Cords

Robot Teach Pendant Cords

Connect robot controllers and teach pendants

USB Cord Locks

Keep your USB cord from shaking loose or being yanked out

Electrical Connector Caps

Electrical Connector Caps

Protect data connectors when not in use

Outlet Strips

Plug in multiple devices to power them from a single outlet

Wall Plates

Cover switches and outlets for a finished look or to close them off when not in use

Data Port Plugs

Data Port Plugs

Keep dust, debris, and moisture out of unused computer ports

Terminal Blocks

Terminal Blocks

Create tidy rows of wire connections that you can identify, test, and adjust on the spot

Terminals

Attach wire endings everywhere from circuit breaker panels to batteries

Binding Posts

Test circuits before making permanent connections

USB Chargers

Power up mobile devices and other electronics

Data Connection Hubs

Data Connection Hubs

Add USB, DisplayPort, or HDMI ports to your computer to connect multiple device

Welding Cable Connectors

Welding Cable Connectors

Plugs and sockets to deliver power to welding cable

Distribution Bars

Distribution Bars

Route electricity within switchboards and battery banks; also known as bus bars

Wire Taps

Connect a tap wire to a main wire without stripping

Distribution Posts

Distribution Posts

Send power from one source to several devices in a circuit in less space than a distribution block

Distribution Blocks

Distribution Blocks

Distribute electricity from a single power source to several devices in a circuit

Data Port Locks

Data Port Locks

Block USB or Ethernet ports from unauthorized use

Electrical Contact Installation Tools

Electrical Contact Installation Tools

Add pin-and-sleeve contacts to connectors

USB Extenders

Increase the reach of USB devices with a transmitter and receiver

Electrical Enclosure Plugs

Electrical Enclosure Plugs

Block or seal holes in outlet boxes and enclosures to keep out debris, dust, and moisture

Cord Grips

Securely connect cords to enclosures while sealing out dirt and moisture

Cable Entry Panels

Cable Entry Panels

Pass multiple cords into an enclosure while sealing out moisture, dust, and other contaminants

Electrical Enclosure Vents

Electrical Enclosure Vents

Attach to sealed enclosures so air can flow to equalize temperature and pressure

Electrical Enclosure Drains

Electrical Enclosure Drains

Release moisture to keep components dry

Outlet Boxes

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

Electrical Enclosure Drain Vents

Electrical Enclosure Drain Vents

Prevent moisture from getting trapped inside enclosures while letting air flow through

Heat-Shrink Tubing

Heat-Shrink Tubing

Apply heat to seal and insulate electrical wiring and connections

DIN Rail Caps

Guard the edges of DIN rail from damage and create a finished look

Voltage Adapters

Voltage Adapters

Change AC voltage to DC voltage to power a device

Inverters

Transform DC voltage to power devices that run on AC voltage; prevent overload damage

Battery Chargers

Battery Chargers

Charge everything from large-cell to cordless tool to household batteries

Jumper Cords

Ready to connect with a terminal at one or both ends

Battery Cords

Connect batteries to each other

Capacitor Boots

Capacitor Boots

Shield capacitors and wire connections to extend their service life and reduce accidental shocks

Development Board Cords

Development Board Cords

Connect your development board to components such as sensors and actuators

Circuit Board Connectors

Circuit Board Connectors

Connect flat flexible cable to circuit boards

Wire and Cable Crimpers

Wire and Cable Crimpers

Crimp connectors onto electrical wire or cable

Wire Stripper/Crimpers

Wire Stripper/Crimpers

Strip wire and crimp connectors with one tool

Wire and Cable Crimper Dies

Wire and Cable Crimper Dies

Attach to cordless crimpers to secure connectors onto cable

Circuit Breaker Box Filler Plates

Circuit Breaker Box Filler Plates

Conceal live electrical components in circuit breaker boxes to prevent injury and damage

EMI/RFI Suppressing Clips

EMI/RFI Suppressing Clips

Shield cable from EMI and RFI that can distort signals; also known as ferrite beads

Fastening and Joining

Socket Head Screws

Socket Head Screws

With a deeper drive than flat and rounded head screws, these withstand more torque for a tighter hold

Rounded Head Screws

Rounded Head Screws

Sit just above the surface for a low-profile finish and hold tighter than flat head screws

Hex Head Screws

Hex Head Screws

Used with nuts to create a stronger joint than flat and rounded screws

Flat Head Screws

Flat Head Screws

Fit in countersunk holes for a flush finish that won't snag on surrounding parts

Tapping Screws

Fasten a range of materials together without needing to tap the hole first

Wood Screws

Fasten material to wood or pieces of wood to each other

Quick-Release Pin Receptacles

Quick-Release Pin Receptacles

Secure quick-release pins when you don’t have a through hole

Quick-Release Pin Retaining Caps

Quick-Release Pin Retaining Caps

Hold quick-release pins in holes that are oversized or out of round

Dowel Pins

Align parts before assembly or use as a pivot, shaft, or hinge to join moving components

Threaded Inserts

Threaded Inserts

Create new threads or repair stripped threads

Press-Fit Nuts

Push into drilled or punched holes to add threads to thin panels

Standoff Caps

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

Rivets

Join materials together permanently, especially when too thin or fragile to fasten with screws

Fabric Snaps

Join soft, heavy fabrics such as leather and canvas

Turn-Button Fastener Bases

Turn-Button Fastener Bases

Mate with turn-button fastener eyelets to secure fabrics to solid surfaces

Turn-Button Fastener Eyelets

Turn-Button Fastener Eyelets

Pair with turn-button fastener bases to secure fabrics to solid surfaces

Wood Joiners

Connect and repair wood pieces and joints

Plug Wrenches

Insert and remove recessed plugs in drain cleanout pipe

Drum Plug Wrenches

Drum Plug Wrenches

Install and remove screw-in drum plugs; also known as bung wrenches

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

Threaded Hole Location Gauges

Threaded Hole Location Gauges

Pinpoint the true center of threaded holes to precisely align and measure parts

Plug Gauges

Verify the diameter or threads of machined holes in finished parts; also called pin gauges

Test Lead Adapters

Test Lead Adapters

Change tip styles to take different measurements with the same test leads

Test Leads

Pair with electrical testers such as multimeters to analyze your devices

Test Lead Tips

Adapt Fluke test leads to perform electrical tests in tight spaces

Patch Cords

Make point-to-point connections between electrical testing equipment and your devices

Power Consumption Meters

Power Consumption Meters

Measure the amount of power your devices consume to help calculate energy costs

BNC Test Cords

Connect oscilloscopes and other testers to your equipment

BNC Adapters

Convert a BNC cord to a double banana connector so it can be used with electrical testers

Humidity-Indicating Plugs

Humidity-Indicating Plugs

Monitor humidity in sealed containers without opening them, protecting the inside from contamination

Lubricating

Grease Fitting Adapters

Grease Fitting Adapters

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

Grease Fittings

Grease Fittings

Create an inlet on equipment and machinery for injecting lubricant; also known as Zerk fittings

Grease Fitting Caps

Grease Fitting Caps

Protect grease fittings from dirt, debris, and moisture

Grease Fitting Manifolds

Grease Fitting Manifolds

Lubricate multiple points with the same amount and type of grease using one grease fitting

Grease Fitting Repair Tools

Grease Fitting Repair Tools

Remove and repair broken or clogged grease fittings and re-tap threaded holes

Grease Fitting Cleaning Tools

Grease Fitting Cleaning Tools

Flush out old grease, dirt, and debris from clogged fittings

Grease Fitting Junction Blocks

Grease Fitting Junction Blocks

Send different types and amounts of grease from multiple grease fittings to lubricate several points

Grease Fitting Installation Tools

Grease Fitting Installation Tools

Tap to insert grease fittings in unthreaded holes

Oil Fittings

Install in engine blocks and other machinery to pour in oil while keeping dust out

Containers, Storage, and Furniture

Drum Plugs

Seal drum lid openings

Drum Plug Adapters

Drum Plug Adapters

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

Drum Plug Caps

Access inside drums to fill them

Drum Locks

Secure drum lids and openings to prevent tampering

Dust Covers

Stretch over drums, pails, and other objects to keep out dust and debris

Stacking Caps and Targets

Stacking Caps and Targets

Turn the ends of posts into stackable shelving and rack systems

Earplug Dispensers

Earplug Dispensers

Keep earplugs accessible and ready to use

Safety Equipment

Fire Hydrant Caps

Fire Hydrant Caps

Pair with a hook-style spanner wrench to quickly cover and uncover fire hydrants

Fire Hydrant Plugs

Fire Hydrant Plugs

Pair with a hook-style spanner wrench to quickly seal fire hydrants and washdown equipment

Fire Stops

Prevent fire and smoke from passing through holes in fire-resistant walls and floors

Earplugs

Protect your hearing in loud environments without the bulk of earmuffs

Safety Glasses

Shield your eyes from dirt, sunlight, lasers, and electrical and welding sparks

Floor Drain Plugs

Floor Drain Plugs

Prevent oil and other spills from going down your floor drain

Spill-Control Drain Covers

Spill-Control Drain Covers

Block grates and manholes so liquid can't get in and odors can't get out

Bearing Guards

Shield bearings from dirt, and protect fingers and tools from moving parts

Fabricating and Machining

Fixture Plate Plugs

Fixture Plate Plugs

Keep chips and shavings from clogging or damaging unused holes on fixture plates in milling machines

Plug Cutters

Form wood plugs to conceal fastener heads in counterbored holes

Facility and Grounds Maintenance

Sink Drain Stoppers

Sink Drain Stoppers

Plug drains to fill up sinks and tubs

Sink Drains

Empty liquids from sinks into sewer lines

Sink Drain Strainers

Sink Drain Strainers

Catch debris to prevent clogs and plug drains to fill sinks

Floor Drain Trap Seals

Floor Drain Trap Seals

Stop sewer gases from escaping through rarely used floor drains if the P-trap dries out

Drain Check Valves

Drain Check Valves

Prevent water damage by placing into floor drains to stop sewer back-ups

Faucet Hole Covers

Faucet Hole Covers

Close off unused faucet holes intended for soap dispensers and side sprayers

Drain Cleanouts

Drain Cleanouts

Create an access point to inspect and clean floor drain pipelines

Shower Stoppers

Shower Stoppers

Push down to plunge and cut trapped material to prevent clogs

Manhole Covers

Made of cast iron to handle high-volume foot and vehicle traffic.

Rebar Caps

Brightly colored to alert workers to exposed rebar and pipe

Storm Drain Filters

Storm Drain Filters

Prevent leaves, sticks, and trash from washing down storm drains and grates

Communication

Telephone Connectors

Telephone Connectors

Replace the plug on your phone cord, or extend your line by connecting cords together

Microphone Connectors

Microphone Connectors

Replace or adapt your current microphone connector to fit your system

Microphone Cords

Microphone Cords

Plug your microphone into an amplifier or speaker

Flash Drives

Store data, take it on the go, and transfer it to other devices with a USB port

Tamper-Evident Seals

Tamper-Evident Seals

Secure hasps, latches, and other connections to visibly indicate tampering

Lighting

Light Switch/Receptacles

Light Switch/Receptacles

Combine a switch and receptacle into a single outlet box for a small footprint

Light Switch Sensor Controllers

Light Switch Sensor Controllers

Turn lights on and off or dim them in unison from a secure Bluetooth network

Light Sockets

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

Fiber-Optic Flashlight Cable

Fiber-Optic Flashlight Cable

Shine light into hard-to-reach spaces by attaching to your flashlight

Material Handling

Wire Rope Plugs

Wire Rope Plugs

Secure wire rope in end fittings with a plug-lock connection

Wire Rope Plug Installation Kits

Wire Rope Plug Installation Kits

Drive plugs into the end of wire rope while protecting the strands from nicks

Conveyor Guide Mounting Rod Caps

Conveyor Guide Mounting Rod Caps

Cover the ends of conveyor guide mounting rods for a finished look

Sealing

Tube Fitting Gaskets

Tube Fitting Gaskets

Prevent leaks when connecting sanitary tube fittings

Drum Plug Gaskets

Drum Plug Gaskets

Form a tighter seal in drum openings than with a drum plug alone

Heating, Ventilation, and Air Conditioning

Air Conditioner Service Valve Caps

Air Conditioner Service Valve Caps

Seal off AC service valves to prevent refrigerant from leaking out

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