Round Plugs | McMaster-Carr

Filter by

Material

Stainless Steel

System of Measurement

Pipe Size

Shape

ID

1/64" to 11/16"

1/64" to 23/32"

Color

Fluorescent Blue

Fitting Type

Thread Size

Thread Type

UN/UNF (SAE 45°)

UN/UNF (SAE Straight)

OD

0.053" to 0.12"

0.079" to 0.15"

0.111" to 0.177"

Length

Plug Connection Method

Gender

For Use With

Alcohol-Based Solvents

Deutsch Style Connectors

Height

Mount Type

Unthreaded Hole

Pipe Material

Stainless Steel

RoHS

Compliant with Exemptions

REACH

Export Control Classification Number (ECCN)

Hole Diameter

0.23" to 0.235"

0.373" to 0.38"

DFARS Specialty Metals

Drive Style

External 12-Point

External Octagon

External Square

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

Profile Shape

Head Diameter

How can we improve?

11,216 Products

Protective Plugs

Tapered Plugs

One plug fits a range of diameters

Hollow Tapered Plugs

Hollow Tapered Plugs

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

Hollow Tapered Plug Assortments

Hollow Tapered Plug Assortments

A range of sizes for plugging holes big and small

Tight-Hold Tapered Plugs

Tight-Hold Tapered Plugs

Tighten the wing nut to expand and seal

Miniature Tapered Plugs

Miniature Tapered Plugs

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

Pull-Tab-Release Hollow Plugs

Pull-Tab-Release Hollow Plugs

Lift and pull the tabs for easier removal than other plugs

Tapered Plugs for Food and Beverage

Tapered Plugs for Food and Beverage

Nonporous and super smooth to prevent bacteria growth

Sealing Plugs

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

Hollow Plugs

Compress for snug fit

Conductive Plugs

Conductive Plugs

Shield components from interference and drain static quickly

Antistatic Plugs

Antistatic Plugs

Prevent static buildup to protect sensitive electronics

Pull-Through Plugs

Pull-Through Plugs

Fill the entire length of through holes

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

Miniature Pull-Through Plugs

Miniature Pull-Through Plugs

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

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

Vented Plugs for Pipe and Tubing

Vented Plugs for Pipe and Tubing

Tear away the tab to release pressure while coatings cure

Pull-Tab-Release Plugs

Pull-Tab-Release Plugs

Grip the tab for easier removal than other plugs

Snap-In Plugs

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

Snap-In Panel Plugs

Snap-In Panel Plugs

Close off unused wiring openings and holes in sheet metal

Metal Snap-In Panel Plugs

Metal Snap-In Panel Plugs

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

Metal Snap-In Panel Plug Assortments

Metal Snap-In Panel Plug Assortments

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

Locking Panel Plugs

Locking Panel Plugs

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

Vented Locking Panel Plugs

Vented Locking Panel Plugs

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

Vented Snap-In Panel Plugs

Vented Snap-In Panel Plugs

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

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

Freeze Plugs

Permanently seal the shallow holes left during the casting process

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 Plugs

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

Bumpers

Absorb impact to protect equipment and surfaces from dents and scuffs

Expansion Plugs

Expansion Plugs

Seal pipe and tubing lines when checking for leaks

Electrical Enclosure Plugs

Electrical Enclosure Plugs

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

Electrical Receptacles

Electrical Receptacles

Install in a wall or panel to transmit power or data to plugs or sockets

Pipe Caps

Cover the ends of pipe to keep out dirt and debris

Sights

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

Electrical Cords

Electrical Cords

Connect equipment and devices to a power supply

Tube End Plugs

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

Shower Stoppers

Shower Stoppers

Push down to plunge and cut trapped material to prevent clogs

Tube End Caps

Cover the ends of tube to keep out dirt and debris

Standoff Caps

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

Heat Exchanger Plugs

Heat Exchanger Plugs

Plug leaky internal tubes in heat exchangers

Grease Fittings

Grease Fittings

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

Pipe Flanges

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

Bore Sealing Plugs

Bore Sealing Plugs

Permanently seal unthreaded holes in pneumatic and hydraulic components

Electrical Connector Caps

Electrical Connector Caps

Protect data connectors when not in use

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

Pressure Test Fittings

Pressure Test Fittings

Create a temporary connection point for gauges and other testing equipment

Drum Plugs

Seal drum lid openings

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

Grease Fitting Caps

Grease Fitting Caps

Protect grease fittings from dirt, debris, and moisture

Breather Vents

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

Grease Fitting Junction Blocks

Grease Fitting Junction Blocks

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

Conveyor Guide Mounting Rod Caps

Conveyor Guide Mounting Rod Caps

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

Drum-Plug Gaskets

Drum-Plug Gaskets

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

Electrical Sockets

Electrical Sockets

Pair with plugs or receptacles to transmit power or data

Dust Covers

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

Electrical Connector Thread Adapters

Electrical Connector Thread Adapters

Join two connectors that both have internal threads

Manhole Covers

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

Spill-Control Drain Covers

Spill-Control Drain Covers

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

Sink Drain Stoppers

Sink Drain Stoppers

Plug drains to fill up sinks and tubs

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

Light Switch/Receptacles

Light Switch/Receptacles

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

Pipe Fittings

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

Rebar Caps

Brightly colored to alert workers to exposed rebar and pipe

Drain Cleanouts

Drain Cleanouts

Create an access point to inspect and clean floor drain pipelines

Drum Locks

Secure drum lids and openings to prevent tampering

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

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

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

Tamper-Evident Seals

Tamper-Evident Seals

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

Threaded Inserts

Threaded Inserts

Create new threads or repair stripped threads

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