Stopper Plugs | McMaster-Carr

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System of Measurement

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"

1/16" to 13/64"

5/64" to 11/64"

Profile Shape

Number of Holes

Attachment Type

Material

Stainless Steel

Color

Shape

Plug Connection Method

Height

Tapered Plug Trade Size

Pipe Size

For Use With

Abrasive Materials

Socket Head Screws

OD

0.053" to 0.12"

0.079" to 0.15"

0.111" to 0.177"

Hole Diameter

Maximum Temperature

Less than 200° F

200° F to 249° F

250° F to 399° F

400° F to 499° F

500° F or greater

Performance

Chemical Resistant

Corrosion Resistant

High Temperature

High Visibility

Impact Resistant

Tamper Resistant

Fitting Type

Hardness

Head Diameter

For Hole Type

RoHS

Compliant with Exemptions

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

REACH

Export Control Classification Number (ECCN)

DFARS Specialty Metals

How can we improve?

2,683 Products

Protective Plugs

Tapered Plugs

One plug fits a range of diameters

Tight-Hold Tapered Plugs

Tight-Hold Tapered Plugs

Tighten the wing nut to expand and seal

Sealing Plugs

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

Hollow Tapered Plugs

Hollow Tapered Plugs

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

Push-In Panel Plugs

Push-In Panel Plugs

Fit tightly on both sides to fill wiring and access holes

Tapered Plugs for Food and Beverage

Tapered Plugs for Food and Beverage

Nonporous and super smooth to prevent bacteria growth

Pull-Through Plugs

Pull-Through Plugs

Fill the entire length of through holes

Pull-Tab-Release Plugs

Pull-Tab-Release Plugs

Grip the tab for easier removal than other plugs

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

Hollow Tapered Plug Assortments

Hollow Tapered Plug Assortments

A range of sizes for plugging holes big and small

Sealing Panel Plugs

Sealing Panel Plugs

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

Miniature Pull-Through Plugs

Miniature Pull-Through Plugs

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

Vented Plugs for Pipe and Tubing

Vented Plugs for Pipe and Tubing

Tear away the tab to release pressure while coatings cure

Miniature Tapered Plugs

Miniature Tapered Plugs

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

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

Snap-In Plugs

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

Snap-In Square Plugs

Snap-In Square Plugs

Press firmly into square holes 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

Pull-Tab-Release Hollow Plugs

Pull-Tab-Release Hollow Plugs

Lift and pull the tabs for easier removal than other plugs

Metal Snap-In Panel Plug Assortments

Metal Snap-In Panel Plug Assortments

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

Freeze Plugs

Permanently seal the shallow holes left during the casting process

Locking Panel Plugs

Locking Panel Plugs

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

Metal Snap-In Panel Plugs

Metal Snap-In Panel Plugs

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

Hollow Plugs

Compress for snug fit

Antistatic Plugs

Antistatic Plugs

Prevent static buildup to protect sensitive electronics

Snap-In Rectangular Plugs

Snap-In Rectangular Plugs

A tighter fit than push-in plugs for finishing the ends of posts, workstations, and furniture

Push-In Square Plugs

Push-In Square Plugs

Close off the ends of square tubing and furniture

Metal Square Plugs

Metal Square Plugs

Tougher than plastic plugs for finishing the ends of square metal tubing

Conductive Plugs

Conductive Plugs

Shield components from interference and drain static quickly

Push-In Rectangular Plugs

Push-In Rectangular Plugs

Close off the ends of rectangular tubing in framing structures, furniture, and shelving

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

Snap-In Plugs for Socket Head Screws

Snap-In Plugs for Socket Head Screws

Keep debris from clogging or damaging hex drives

Other Products

Protective Caps

Protective Caps

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

Standoff Caps

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

Fixture Plate Plugs

Fixture Plate Plugs

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

Sink Drain Stoppers

Sink Drain Stoppers

Plug drains to fill up sinks and tubs

DIN Rail Caps

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

Hose and Hose Fittings

Hose and Hose Fittings

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

Bore Sealing Plugs

Bore Sealing Plugs

Permanently seal unthreaded holes in pneumatic and hydraulic components

Floor Drain Plugs

Floor Drain Plugs

Prevent oil and other spills from going down your floor drain

Quick-Release Pin Receptacles

Quick-Release Pin Receptacles

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

Tamper-Evident Seals

Tamper-Evident Seals

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

Capacitor Boots

Capacitor Boots

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

Shower Stoppers

Shower Stoppers

Push down to plunge and cut trapped material to prevent clogs

Quick-Release Pin Retaining Caps

Quick-Release Pin Retaining Caps

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

Conveyor Guide Mounting Rod Caps

Conveyor Guide Mounting Rod Caps

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

Data Port Locks

Data Port Locks

Block USB or Ethernet ports from unauthorized use

Rebar Caps

Brightly colored to alert workers to exposed rebar and pipe

Data Port Plugs

Data Port Plugs

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

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.)