Round Plugs | McMaster-Carr

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Material

Stainless Steel

System of Measurement

Pipe Size

Shape

ID

0.022" to 0.079"

0.025" to 0.08"

0.03" to 0.083"

3/64" to 13/64"

1/16" to 11/64"

Fitting Type

Color

Thread Size

OD

0.053" to 0.12"

0.079" to 0.15"

0.111" to 0.177"

Thread Type

Gender

For Use With

Alcohol-Based Solvents

Equipment-Cooling Fans

Extension Cords

Length

Height

Attachment Type

Worm-Drive Clamp

Performance

Abrasion Resistant

Adjustable Angle

Auto-Restart Prevention

Automatic Shut-Off

Chemical Resistant

Corrosion Resistant

Crack Resistant

Crush Resistant

Flame Resistant

Hole Diameter

0.23" to 0.235"

0.373" to 0.38"

RoHS

Compliant with Exemptions

REACH

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

Export Control Classification Number (ECCN)

DFARS Specialty Metals

Mount Type

Unthreaded Hole

Maximum Temperature

Less than 100° F

100° F to 249° F

250° F to 499° F

500° F to 999° F

1,000° F or greater

For Material Thickness

0.072" to 0.135"

Fitting Connection

Spec Image

Spec Image

O-Ring Face Seal

Push to Connect

Spec Image

Quick Disconnect

Socket Fusion Weld

Spec Image

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13,072 Products

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Protective Plugs

Snap-In Plugs

Press firmly into place for a tighter hold than push-in plugs

Locking Panel Plugs

Locking Panel Plugs

The most secure panel plugs, shaking and rattling won’t dislodge them

Snap-In Panel Plugs

Snap-In Panel Plugs

Close off unused wiring openings and holes in sheet metal

Pull-Through Plugs

Pull-Through Plugs

Fill the entire length of through holes

Screw-In Plugs for Pipe and Tubing

Screw-In Plugs for Pipe and Tubing

Threaded for the most secure fit on female pipe and fittings

Metal Snap-In Panel Plugs

Metal Snap-In Panel Plugs

Toughest plugs for panels and sheet metal withstand impact and wear better than plastic

Push-In Panel Plugs

Push-In Panel Plugs

Fit tightly on both sides to fill wiring and access holes

Sealing Panel Plugs

Sealing Panel Plugs

Create a liquid-tight seal while protecting wire, cable, and tubing from sharp edges

Hollow Tapered Plugs

Hollow Tapered Plugs

Shaped to fit a range of diameters and compress for a snug fit

Tapered Plugs

One plug fits a range of diameters

Pull-Through Plugs for Countersunk Holes

Pull-Through Plugs for Countersunk Holes

Protect both the center and countersunk portions of holes with a single plug

Conductive Plugs

Conductive Plugs

Shield components from interference and drain static quickly

Vented Plugs for Pipe and Tubing

Vented Plugs for Pipe and Tubing

Tear away the tab to release pressure while coatings cure

Freeze Plugs

Permanently seal the shallow holes left during the casting process

Hollow Tapered Plug Assortments

Hollow Tapered Plug Assortments

A range of sizes for plugging holes big and small

Miniature Tapered Plugs

Miniature Tapered Plugs

Block very small holes while you paint, coat, or plate parts

Sealing Plugs

Seal the ends of water supply lines, refrigerant lines, and HVAC compressors

Hollow Plugs

Compress for snug fit

Tight-Hold Tapered Plugs

Tight-Hold Tapered Plugs

Tighten the wing nut to expand and seal

Metal Snap-In Panel Plug Assortments

Metal Snap-In Panel Plug Assortments

Fit a range of hole sizes in machine panels and sheet metal.

Pull-Tab-Release Hollow Plugs

Pull-Tab-Release Hollow Plugs

Lift and pull the tabs for easier removal than other plugs

Antistatic Plugs

Antistatic Plugs

Prevent static buildup to protect sensitive electronics

Vented Snap-In Panel Plugs

Vented Snap-In Panel Plugs

Air circulates and permits heat and fumes to escape from machine panels

Tapered Plugs for Food and Beverage

Tapered Plugs for Food and Beverage

Nonporous and super smooth to prevent bacteria growth

Miniature Pull-Through Plugs

Miniature Pull-Through Plugs

Stretch through very small holes in electronic components such as circuit boards and connectors

Vented Locking Panel Plugs

Vented Locking Panel Plugs

Release heat and fumes with plugs that stay put, even under vibration

Pull-Tab-Release Plugs

Pull-Tab-Release Plugs

Grip the tab for easier removal than other plugs

Other Products

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

Pipe and Fittings

Pipe and Fittings

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

Expansion Plugs

Expansion Plugs

Seal pipe and tubing lines when checking for leaks

Bumpers

Absorb impact to protect equipment and surfaces from dents and scuffs

USB Cords

Transfer data between computers, printers, and mobile devices

Metric Circular Connectors

Metric Circular Connectors

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

Mil. Spec. Receptacles

Mil. Spec. Receptacles

Install in walls and panels and pair with Mil. Spec. plugs

Electrical Enclosure Plugs

Electrical Enclosure Plugs

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

Light Switch/Receptacles

Light Switch/Receptacles

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

Threaded Inserts

Threaded Inserts

Create new threads or repair stripped threads

Tube Fittings

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

Metric Circular Cords

Metric Circular Cords

Send power and control signals to equipment with metric connections

Sights

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

Bore Sealing Plugs

Bore Sealing Plugs

Permanently seal unthreaded holes in pneumatic and hydraulic components

Mini Receptacles

Mini Receptacles

Install in walls and panels and pair with plugs to send power and signal

Power Connectors

Power Connectors

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

Drain Cleanouts

Drain Cleanouts

Create an access point to inspect and clean floor drain pipelines

Grease Fittings

Grease Fittings

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

Conveyor Guide Mounting Rod Caps

Conveyor Guide Mounting Rod Caps

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

Manhole Covers

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

Sink Drain Stoppers

Sink Drain Stoppers

Plug drains to fill up sinks and tubs

DMX Cords

Connect to lighting equipment with five-pin XLR connections

Heat-Shrink Tubing

Heat-Shrink Tubing

Apply heat to seal and insulate electrical wiring and connections

Grease Fitting Cleaning Tools

Grease Fitting Cleaning Tools

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

Ethernet Cords

Send data between computers, printers, servers, and switches

Extension Cords

Extension Cords

Extend the reach of power from an outlet

Power Cords

Connect equipment and devices to a power source

D-Sub Cords

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

Mini Cords

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

Standoff Caps

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

Coaxial Cords

Transmit audio, video, and data with minimal signal loss

Grease Fitting Adapters

Grease Fitting Adapters

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

Oil Fittings

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

Fiber-Optic Cords

Fiber-Optic Cords

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

Pressure Test Fittings

Pressure Test Fittings

Create a temporary connection point for gauges and other testing equipment

DisplayPort Cords

DisplayPort Cords

Send video from computers to monitors and other displays

HDMI Cords

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

Drum Plugs

Seal drum lid openings

Power Connector Caps

Power Connector Caps

Cover pin-and-sleeve power connectors when they're not in use

Heat Exchanger Plugs

Heat Exchanger Plugs

Plug leaky internal tubes in heat exchangers

Pressure-Relief Valves

Pressure-Relief Valves

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

Sink Drains

Empty liquids from sinks into sewer lines

Solenoid Valve Cords

Solenoid Valve Cords

Connect solenoid components, such as valves and motors

Grease Fitting Caps

Grease Fitting Caps

Protect grease fittings from dirt, debris, and moisture

Mil. Spec. Connector Caps

Mil. Spec. Connector Caps

Protect Mil. Spec. connectors when they're not in use

Audio Cords

Hook up speakers to an audio signal

Mini Connector Caps

Mini Connector Caps

Shield mini connectors when they're not in use

Breather Vents

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

Ecomate Receptacles

Ecomate Receptacles

Install in walls and panels and pair with plugs to make Ecomate connections

Grease Fitting Junction Blocks

Grease Fitting Junction Blocks

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

Metric Circular Connector Caps

Metric Circular Connector Caps

Keep metric circular connectors safe when they're not in use

Drum Plug Gaskets

Drum Plug Gaskets

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

Dust Covers

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

ix Industrial Cords

ix Industrial Cords

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

Mini Connector Thread Adapters

Mini Connector Thread Adapters

Join two connectors that both have internal threads

Spill-Control Drain Covers

Spill-Control Drain Covers

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

Video Adapter Cords

Video Adapter Cords

Send video between devices with different connections

Drum Plug Caps

Access inside drums to fill them

Floor Drain Trap Seals

Floor Drain Trap Seals

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

Rebar Caps

Brightly colored to alert workers to exposed rebar and pipe

Floor Drain Plugs

Floor Drain Plugs

Prevent oil and other spills from going down your floor drain

Grease Fitting Manifolds

Grease Fitting Manifolds

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

Drum Locks

Secure drum lids and openings to prevent tampering

Grease Fitting Installation Tools

Grease Fitting Installation Tools

Tap to insert grease fittings in unthreaded holes

Grease Fitting Repair Tools

Grease Fitting Repair Tools

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

Press-Fit Nuts

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

Profibus Cords

Transmit data in automation systems and other networks

Tamper-Evident Seals

Tamper-Evident Seals

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

Thunderbolt Cords

Thunderbolt Cords

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

Shower Stoppers

Shower Stoppers

Push down to plunge and cut trapped material to prevent clogs

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