Plastic Threaded Sundry Plugs

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5,033 Products

Iron and Steel Threaded Pipe and Pipe Fittings

Compact Extreme-Pressure
Steel Threaded Pipe Fittings

These fittings are strong enough to handle extreme pressures, yet small enough to fit into cramped spaces.

Compact Precision Extreme-Pressure
Steel Threaded Pipe Fittings

Made to tighter tolerances than other steel pipe fittings, these are also known as instrumentation fittings.

Extreme-Pressure Steel Threaded Pipe Fittings

The strongest steel fittings we offer, these can withstand extreme-pressure applications.

Low-Pressure Iron and Steel Threaded Pipe Fittings

Use these fittings for low-pressure applications in noncorrosive environments.

Low-Pressure Cast Iron Threaded Pipe Fittings

Low-Pressure Galvanized Iron
and Steel Threaded Pipe Fittings

The galvanized finish on these fittings provides fair corrosion resistance. Fittings are for use in low-pressure applications.

Low-Pressure Galvanized Steel
Threaded Pipe Fittings with Sealant

The male threads on these fittings have a sealant applied for extra leak protection.

High-Pressure Iron and Steel Threaded Pipe Fittings

These fittings can stand up to high-pressure applications. Use them in noncorrosive environments.

High-Pressure Galvanized Steel Threaded Pipe Fittings

A galvanized finish gives these fittings better corrosion resistance than our plain steel high-pressure fittings. Also known as Class 3000 fittings.

Medium-Pressure Iron and Steel Threaded Pipe Fittings

For use in noncorrosive environments, these fittings have better strength than our low-pressure iron and steel pipe fittings.

Medium-Pressure Galvanized Iron
and Steel Threaded Pipe Fittings

A galvanized finish gives these fittings fair corrosion resistance. They have the strength to handle medium-pressure applications.

Stainless Steel Threaded Pipe and Pipe Fittings

Low-Pressure Stainless Steel Threaded Pipe Fittings

Use these corrosion-resistant fittings in a low-pressure pipe line.

Premium Low-Pressure Stainless Steel
Threaded Pipe Fittings with Certification

Unlike other stainless steel fittings, these are made in the U.S.A. for superior quality. As another marker of quality, they come with a certificate with a traceable lot number and test report that guarantees material composition.

High-Pressure Stainless Steel Threaded Pipe Fittings

Use these heavy duty, corrosion-resistant fittings in high-pressure flow applications.

Extreme-Pressure Stainless
Steel Threaded Pipe Fittings

Use these fittings in extreme-pressure conditions up to 15,000 psi.

Precision Extreme-Pressure Stainless
Steel Threaded Pipe Fittings

These fittings are made to tighter tolerances than other stainless steel pipe fittings. They are also known as instrumentation fittings.

Medium-Pressure Stainless
Steel Threaded Pipe Fittings

Choose these fittings when you want the same high-quality found in our low-pressure pipe fittings, but need more strength to handle higher pressures.

Brass and Bronze Threaded Pipe and Pipe Fittings

High-Pressure Brass Threaded Pipe Fittings

These brass fittings have the strength to handle high-pressure applications.

High-Pressure Brass Threaded
Pipe Fittings with Sealant

Not only do these brass fittings have the strength to handle high-pressure applications, the male threads have a sealant applied for extra protection against leaks.

High-Pressure Brass Threaded
Pipe Fittings for Drinking Water

Use these heavy-duty brass fittings for high-pressure drinking water applications.

High-Pressure Plated Brass Threaded Pipe Fittings

The plating on these brass fittings creates a shiny finish and provides extra protection in corrosive environments. Fittings have the strength to handle high-pressure applications.

Low-Pressure Brass and Bronze Threaded Pipe Fittings

Use these fittings in low-pressure flow applications. They have good corrosion resistance.

Miniature Low-Pressure Brass Threaded Pipe Fittings

Less than an inch in length, these miniature fittings work well in low-pressure pipe lines that are tight on space.

Low-Pressure Brass Threaded
Pipe Fittings with Sealant

The male threads on these brass fittings have a sealant applied for extra protection against leaks. Also known as Class 125 fittings, they are built for use in low-pressure applications.

Low-Pressure Plated Brass Threaded Pipe Fittings

Used in low-pressure pipe lines, these brass fittings have a plating that makes them shiny and improves corrosion resistance.

Extreme-Pressure Brass Threaded Pipe Fittings

Extreme pressures are no problem for these heavy-duty brass fittings.

Precision Extreme-Pressure
Brass Threaded Pipe Fittings

Also known as instrumentation fittings, these have the most precise threads and the tightest tolerances of all the brass pipe fittings we offer.

Medium-Pressure Plated Brass Threaded Pipe Fittings

Plated with nickel, these brass fittings resist rust better than steel and unfinished brass fittings. Select them when you need more strength in corrosive environments to handle higher pressures than our low-pressure fittings.

Medium-Pressure Brass and
Bronze Threaded Pipe Fittings

Choose these fittings when you need better strength than our low-pressure brass and bronze pipe fittings.

Aluminum Threaded Pipe and Pipe Fittings

Low-Pressure Aluminum Threaded Pipe Fittings

In addition to being lightweight, these aluminum fittings offer good corrosion resistance. Use them in low-pressure flow applications.

Medium-Pressure Aluminum Threaded Pipe Fittings

Designed for medium-pressure applications, these fittings have better strength than our low-pressure aluminum pipe fittings.

High-Pressure Aluminum Threaded Pipe Fittings

Also known as Class 3000 fittings, these have the highest pressure rating of all the aluminum pipe fittings we offer.

Titanium Threaded Pipe Fittings

Titanium has similar strength to steel, but is approximately 40% lighter. It has better corrosion resistance than most stainless steel alloys and can handle corrosive substances, such as salt water and acids.

Plastic Pipe and Pipe Fittings

Thick-Wall Plastic Pipe Fittings for Water

Connect these fittings to thick-wall plastic pipe—they have thicker, stronger walls than standard-wall fittings, so they can handle heavy duty industrial plumbing and water supply applications, such as water processing, waste water treatment, and irrigation. They can withstand pressures up to 900 psi.

Standard-Wall Plastic Pipe Fittings for Water

Connect these fittings to Schedule 40 plastic pipe—they are the industry standard for residential and commercial low-pressure plumbing and water supply applications. They are plastic for good corrosion resistance.

CPVC Pipe Fittings for Hot Water

Connect to CPVC pipe for use in high-temperature plumbing and water supply applications up to 200° F.

Plastic Pipe Fittings for Oil

Made of corrosion-resistant plastic, these fittings won’t deteriorate when used in oil applications. They have high strength and impact resistance.

Plastic Pipe Fittings for Gasoline

Use these plastic fittings to connect gasoline fuel lines to machines and equipment. They have excellent corrosion resistance as well as high strength and impact resistance.

UV-Resistant Polypropylene Pipe Fittings for Chemicals

Made of polypropylene, these fittings won’t deteriorate when exposed to the damaging effects of ultraviolet light and are suitable to use outdoors. They have the chemical resistance to withstand acids, solvents, and other harsh substances.

High-Temperature PTFE Pipe Fittings for Chemicals

Extreme temperatures are no problem for these fittings—they’re made of PTFE, so they can withstand a wider temperature range than any of our other plastic pipe fittings for chemicals. They are commonly used in high-purity chemical flow processes, such as semiconductor and clean room applications.

Crack-Resistant PFA Pipe Fittings for Chemicals

Not only do these PFA fittings have the chemical resistance to handle acid and salt water, they also have better crack resistance than other plastic pipe fittings for chemicals. They are commonly used in high-purity chemical flow processes, such as semiconductor and clean room applications.

Drain, Waste, and Vent ABS Pipe Fittings for Chemicals

These fittings are an economical option for chemical waste systems. Fittings are ABS plastic, which has excellent strength and impact resistance and good chemical resistance.

Aboveground Standard-Wall PVC Pipe
Fittings for Drain, Waste, and Vent

These Schedule 40 fittings are the industry standard for gravity-flow drain, waste, and vent (DWV) applications.

Underground PVC Pipe Fittings
for Drain, Waste, and Vent

With thinner walls than Schedule 40 fittings, these are lighter in weight and have more space on the inside for high-flow applications, such as underground gravity-flow sewer and storm drainage lines. They are also known as SDR 35 fittings.

Plastic Pipe Fitting Plugs for Food and Beverage

Plugs are are suitable for food and beverage applications and won't impart tastes or odors to your product.

Hose Fittings

Industrial Quick-Disconnect Hose Couplings for Air

The industry standard for quick-disconnect couplings, these are also known as industrial interchange couplings. Compatible with Industrial-shape plugs and sockets.

Industrial Quick-Disconnect Hose
Coupling Size-Identification Kits

Kits contain Industrial quick-disconnect plugs in four coupling sizes so you can determine the size of your couplings without needing to measure.

Plastic Quick-Disconnect Hose
Couplings for Air and Water

Made of acetal, these couplings are lighter in weight than metal quick-disconnect couplings. Compatible with Plastic-shape plugs and sockets.

Open-Flow Quick-Disconnect
Hose Couplings for Air and Water

Couplings allow for maximum flow because there's no shut-off valve in the plug or the socket. Compatible with Open-Flow-shape plugs and sockets.

ARO Quick-Disconnect Hose Couplings for Air

Compatible with ARO-shape plugs and sockets.

Compact Quick-Disconnect Hose Couplings for Air

A slim body allows these couplings to fit into tight spaces. Compatible with Compact-shape plugs and sockets.

Tru-Flate Quick-Disconnect Hose Couplings for Air

Also known as automotive couplings. Compatible with Tru-Flate-shape plugs and sockets.

European Quick-Disconnect Hose Couplings for Air

With an unobstructed air path, these couplings have better airflow than other coupling shapes of the same size. Compatible with European-shape plugs and sockets.

Lincoln Quick-Disconnect Hose Couplings for Air

Compatible with Lincoln-shape plugs and sockets.

Ring-Lock Quick-Disconnect Hose Couplings for Air

Compatible with Ring-Lock-shape plugs and sockets.

Schrader Quick-Disconnect Hose Couplings for Air

Compatible with Schrader-shape plugs and sockets.

Japanese Quick-Disconnect Hose Couplings for Air

Compatible with Japanese-shape plugs and sockets.

Color/Shape-Match Quick-Disconnect
Hose Couplings for Air and Water

Plugs and sockets are color coded by shape so you can't mix hose lines. Only plugs and sockets of the same color will fit together.

Plastic Cam-and-Groove Hose Couplings for Water

Made of polypropylene, these cam-and-groove couplings are lighter in weight than metal cam-and-groove hose couplings.

Metal Cam-and-Groove Hose Couplings for Water

Metal cam-and-groove couplings have better durability than plastic cam-and-groove couplings.

Metal Cam-and-Groove Hose
Couplings with Shut-Off Valve for Water

Also known as dry disconnects and double shut-off couplings, these have a shut-off valve in the plug and socket for minimal fluid loss when disconnecting the hose line.

Threaded Hose Fittings for Hydraulic Fluid

Fittings are threaded on both ends so you can connect them directly to a threaded hose or to pumps, cylinders, and other equipment in your hydraulic system. Use in high-pressure applications up to 6,000 psi

International Standard ISO Minimal-Spill
Quick-Disconnect Hose Couplings for Hydraulic Fluid

Use these couplings at pressures up to 7,200 psi. Also known as flush-face couplings, the plugs and sockets have a flat face, which allows them to mate close together, reducing fluid loss when connecting and disconnecting the line. They are compatible with International Standard ISO Minimal-Spill-shape plugs and sockets.

High-Pressure Minimal-Spill Quick-Disconnect
Hose Couplings for Hydraulic Fluid

Use these couplings at pressures up to 10,000 psi. Also known as flush-face couplings, the plugs and sockets have a flat face, which allows them to mate close together, reducing fluid loss when connecting and disconnecting the line. They are compatible with High-Pressure Minimal-Spill-shape plugs and sockets.

International Standard ISO B Quick-Disconnect
Hose Couplings for Hydraulic Fluid

Use these couplings at pressures up to 5,000 psi. They consist of a plug and socket that connect and disconnect quickly. Use them if you need frequent access to a line. They are compatible with International Standard ISO B-shape plugs and sockets.

International Standard ISO A Quick-Disconnect
Hose Couplings for Hydraulic Fluid

Snap-Tite H-Shape Quick-Disconnect
Hose Couplings for Hydraulic Fluid

Use these couplings at pressures up to 6,500 psi. They consist of a plug and socket that connect and disconnect quickly. Use them if you need frequent access to a line. They are compatible with Snap-Tite H-Shape plugs and sockets.

High-Pressure Thread-Lock Quick-Disconnect
Hose Couplings for Hydraulic Fluid

Use these couplings at pressures up to 10,000 psi. The plug and socket thread together to form a stronger connection than other quick-disconnect couplings. They are compatible with High-Pressure Thread-Lock-shape plugs and sockets.

Pioneer Quick-Disconnect Hose
Couplings for Hydraulic Fluid

Use these couplings at pressures up to 3,000 psi. They consist of a plug and socket that connect and disconnect quickly. Use them if you need frequent access to a line. They are compatible with Pioneer-shape plugs and sockets.

Pin-Lug Fire Hydrant Caps

These caps are the fastest way to close off or access your water line. They have a bracket that snaps into any type of 2 1/2 size female fire hose threads. Tap on one of the pin lugs to remove quickly in an emergency.

Rocker-Lug Fire Hydrant Caps and Plugs

Thread these caps and plugs onto fire hydrants and washdown equipment to close off the line. They have rocker lugs for easy gripping.

Threaded Hose Fittings for Compressed Gas

Use these CGA fittings to connect welding hose to pressure regulators and torches.

Quick-Disconnect Garden Hose Couplings

Couplings consist of a plug and a socket that connect more quickly than threaded garden hose couplings. To connect, push the plug into the socket. The compact design makes these couplings sleeker and easier to handle than cam-and-groove garden hose couplings.

Cam-and-Groove Garden Hose Couplings

Couplings consist of a plug and a socket that connect more quickly than threaded garden hose couplings. To connect, insert the plug into the socket and press the levers down.

Metal Garden Hose Fittings

Attach these fittings to garden hose for a variety of water supply applications. They are metal for better durability than plastic garden hose fittings.

Plastic Garden Hose Fittings

Made of nylon, these fittings are lighter in weight than metal garden hose fittings. Attach them to garden hose for a variety of water supply applications.

Metal Cam-and-Groove Hose
Couplings for Chemicals and Petroleum

Couplings are metal, which has better durability than plastic cam-and-groove hose couplings. They consist of a plug and a socket that connect and disconnect quickly. Use them if you need frequent access to a line. To connect, insert the plug into the socket and push the levers down.

Plastic Cam-and-Groove Hose
Couplings for Chemicals and Petroleum

Couplings are plastic, which is lighter in weight than metal cam-and-groove hose couplings. They consist of a plug and a socket that connect and disconnect quickly. Use them if you need frequent access to a line. To connect, insert the plug into the socket and push the levers down.

Metal Cam-and-Groove Hose Couplings with
Shut-Off Valve for Chemicals and Petroleum

Couplings are metal, which has better durability than plastic cam-and-groove hose couplings. Also known as dry disconnects and double shut-off couplings, they have a shut-off valve in the plug and the socket for minimal fluid loss when disconnecting your hose line.

Quick-Disconnect Hose Couplings for Chemicals

Also known as flush-face couplings and minimal-spill couplings, the plugs and sockets have a flat face, which allows them to mate close against each other, reducing fluid loss when connecting and disconnecting the line. Couplings consist of a plug and a socket that connect and disconnect quickly so you can frequently access your line.

International Standard ISO Minimal-Spill
Quick-Disconnect Hose Couplings for Chemicals

To minimize fluid loss when connecting and disconnecting your line, these couplings have flat faces for a close fit and shut-off valves to stop the flow—they meet ISO 16028, which is an international standard for hose couplings.

Quick-Disconnect Hose Couplings for Coolant

Couplings consist of a plug and a socket that connect and disconnect quickly. Use them if you need frequent access to a line. They are designed for coolant applications up to 200 psi. Also known as coolant-line mold couplings.

Cam-and-Groove Hose Couplings
for Food and Beverage

Couplings are made of FDA listed materials, so they’re suitable for food and beverage applications and won’t impart tastes or odors to the product. They consist of a plug and a socket that connect and disconnect quickly. Use them if you need frequent access to a line. To connect, insert the plug into the socket and push the levers down.

Dust Caps and Plugs for Natural
and LP Gas Hose Fittings

To keep contaminants out of your gas line, add these dust caps and plugs to natural and LP gas couplings when they’re not connected. All work with couplings that are rated ANSI Z21.41/CSA 6.9 for use with gas fuel appliances.

Quick-Disconnect Plastic-Shape Hose
Couplings for Food and Beverage

Couplings are compatible with quick-disconnect Plastic-shape plugs and sockets. They are designed for food and beverage applications and won’t impart tastes or odors to the product. They consist of a plug and a socket that connect and disconnect quickly so you can frequently access your line. Use at pressures up to 100 psi.

International Standard ISO B Quick-Disconnect
Hose Couplings for Food and Beverage

These couplings are compatible with International Standard ISO Series B-shape plugs and sockets. They are FDA compliant, so they’re suitable for food and beverage applications and won’t impart tastes or odors to the product. They consist of a plug and a socket that connect and disconnect quickly so you can frequently access your line. Use at pressures up to 220 psi.

Natural and LP Gas Hose Fittings

Use these couplings when you need frequent access to a gas line. A complete coupling consists of a plug and a socket that connect and disconnect quickly.

Quick-Disconnect Hose Couplings for Steam

Couplings consist of a plug and a socket that connect quickly. Use them if you need frequent access to a line. They are designed for low-pressure steam applications up to 300 psi.

Round Plugs

Threaded Round Plugs for Straight-Thread Pipe

Seal tube and hose fittings to keep their straight threads protected from contaminants during fabrication and storage.

Threaded Round Plugs for NPT Pipe

Protect internally threaded NPT connections from contaminants during fabrication and storage.

High-Temperature Round Plugs for NPT Pipe

These plugs withstand temperatures up to 600° F to protect internally threaded NPT connections from contaminants during electropainting, paint baking, and powder coating applications.

Threaded Round Plugs for 37° Flared Tube

Designed to fit into 37° flared connections such as those found on JIC and SAE fittings, these plugs protect internally threaded connections from contaminants during fabrication and storage.

Threaded Round Plugs for BSPT Pipe

Safeguard internally threaded BSPT connections from contaminants during fabrication and storage.

Snap-In Round Plugs

Flexible ridges or straps hold these plugs in place and allow them to fit a range of hole diameters.

Round Plugs

The hollow construction allows these plugs to compress for a snug fit in threaded and unthreaded holes.

Conductive Round Plugs

With a surface resistivity of less than 10⁵ ohms, these plugs not only dissipate electrical charges, but can be used as an electrical shield.

Antistatic Round Plugs

Keep equipment safe from electrical currents with these plugs that have a surface resistivity of less than 10¹² ohms.

Sealing Plugs

With a compressible flanged top, these plugs are designed to seal the ends of copper tubing often used in water supply lines, refrigerant lines, and HVAC compressors. All are sized to fit standard copper tube dimensions.

Pull-Tab Round Plugs

A time-saving alternative to threaded plugs, these plugs press in place and have an ergonomic pull tab for quick and easy removal. Use them to temporarily protect holes in objects from contaminants during storage, painting, and light fabrication.

Flanged Pull-Through Round Plugs

Designed with a flange, these plugs protect countersunk holes during anodizing, electroplating, paint baking, and powder-coating applications. All withstand temperatures up to 600° F. Use the smaller end of the plug to pull the larger end into a through hole to form a tight seal.

Miniature Pull-Through Round Plugs

Also known as mouse tails, these tiny plugs fit through-hole IDs as small as 0.022”, 0.025", or 0.03”.

Chemical-Resistant Pull-Through Round Plugs

These plugs have excellent chemical resistance for masking parts during chemical finishing applications such as plating and anodizing. Use the smaller end of the plug to pull the larger end into a through hole to form a tight seal.

High-Temperature Pull-Through Round Plugs

Good for electroplating, paint baking, and powder-coating applications, these plugs withstand temperatures up to 600° F. To form a tight seal, use the smaller end of the plug to pull the larger end into a through hole.

Tapered Plugs

Hollow Tapered Plugs

The hollow construction allows these plugs to compress for a snug fit in threaded and unthreaded holes of varying diameters.

Hollow Tapered Plug Assortments

Keep hollow tapered plugs of various sizes on hand to solve whatever problems arise. The hollow construction allows these plugs to compress for a snug fit in threaded and unthreaded holes of varying diameters.

Miniature Tapered Plugs

Sized to fit small openings, these tiny plugs fit snugly but can be removed easily using the flange. Their tapered design fits a range of hole diameters.

Pull-Ring Tapered Plugs

Pull the two built-in rings to quickly remove these plugs. All are tapered to fit a range of hole diameters.

Expandable Tapered Plugs

Place a plug into an opening and tighten the wing nut—the sides expand to create a seal in holes of varying diameters.

Tapered Plugs

Often used as laboratory stoppers, these rubber plugs have good impact and abrasion resistance. They’re tapered to fit a range of hole diameters.

Corks

Lightweight and moisture resistant, these plugs are laboratory-grade 100% natural cork. They’re tapered to fit a range of hole diameters.

Tamper-Evident Tapered Plugs

Often used on gas cylinders, these plugs cinch and lock tightly around valve heads to block the ports—they must be cut off making it clear if the cylinder has been tampered with. The plugs are tapered to fit a range of hole diameters.

High-Temperature Tapered Plugs

Good for electroplating, paint baking, and powder-coating applications, these plugs withstand temperatures up to 570° F. All are tapered to fit a range of hole diameters.

Miniature High-Temperature Tapered Plugs

Sized to fit small openings, these tiny plugs fit snugly but can be removed easily using the flange. They withstand temperatures up to 470° F, which makes them good for electroplating, paint baking, and powder-coating applications. All are tapered to fit a range of hole diameters.

Hollow High-Temperature Tapered Plugs

The hollow construction allows these plugs to compress for a snug fit in threaded and unthreaded holes of varying diameters. Good for electroplating, paint baking, and powder-coating applications, they withstand temperatures up to 450° F.

Expandable High-Temperature Tapered Plugs

Place a plug into an opening and tighten the wing nut—the sides expand to create a seal in holes of varying diameters. Good for paint baking and powder-coating applications, these plugs withstand temperatures up to 450° F.

Food Industry Tapered Plugs

Made of FDA listed materials, these plugs are suitable for food contact. They're tapered to fit a range of hole diameters.

Chemical-Resistant Tapered Plugs

These plugs have excellent chemical resistance for masking parts during chemical finishing applications such as plating and anodizing. Their tapered design fits a range of hole diameters.

Square Plugs

Snap-In Square Plugs

Flexible ridges or straps hold these plugs in place.

Push-In Square Plugs

Push these plugs into an opening and friction holds them in place.

Metal Square Plugs

More durable than plastic plugs, these provide the most protection from abrasion and impact. Use them to eliminate sharp edges and create a finished look on metal fence and machine-guard posts. Drive them in place with a hammer for a secure fit.

Domed Square Plugs

Often used on metal furniture, these plugs provide a finished look on posts and tubes. Snap them into place and their flexible ridges will provide a secure grip.

Rectangular Plugs

Snap-In Rectangular Plugs

Flexible ridges securely hold these plugs in place and allow them to fit a range of hole sizes.

Push-In Rectangular Plugs

Push these plugs into an opening and friction holds them in place.

Fixture Plate Chip Plugs

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

Panel Plugs

Plastic Snap-In Panel Plugs

Tapered prongs or a snap-in ring securely hold these plugs in place.

Metal Snap-In Panel Plugs

Made of steel, these are our most durable plugs for panels. Tapered prongs snap into the hole to securely hold them in place.

Metal Snap-In Panel Plug Assortments

Keep metal snap-in plugs of various sizes on hand to solve whatever problems arise. Made of steel, these plugs are our most durable plugs for panels. Their tapered prongs snap into holes to securely hold them in place.

Vented Snap-In Panel Plugs

Vents in the top allow air circulation and permit heat and fumes to escape. These plugs have tapered prongs that snap into the hole to securely hold them in place.

Sealing Panel Plugs

The wings on these plugs expand against the sides of a hole to form a liquid-tight seal. Pierce the plugs with round wire, cable, or tubing and they function as a grommet to create insulated holes.

Locking Panel Plugs

The wings on these plugs expand against the sides of a hole to lock them in place.

Clear Locking Panel Plugs

These plugs are see-through to provide visibility and light transmission. They have wings that expand against the sides of the hole to lock them in place.

Vented Locking Panel Plugs

Vents in the top allow air circulation and permit heat and fumes to escape. All of these plugs have wings that expand against the sides of the hole to lock them in place.

Push-In Panel Plugs

Push these plugs into place for a finished appearance on both sides of a panel.

Expansion Plugs for Castings

Also known as freeze plugs, these are commonly used to permanently seal the shallow holes left in a component during the casting process.

Hydraulic Sealing Plugs

Permanently seal unthreaded holes in pneumatic and hydraulic components.

Ethernet Port Plugs

Shield unused RJ45 type ports on computers and other electronic equipment from debris and moisture.

Caps

Threaded Caps

Protect externally threaded components from contaminants during fabrication and storage.

Tapered Caps

These flexible plastic caps are tapered to fit a variety of unthreaded and threaded objects.

Round Caps

Slide these flexible vinyl caps on and they conform for a snug fit.

Domed Round Caps

The large domed head extends beyond the diameter of your pipe, rod, or tubing for added protection.

Heavy Duty Round Caps

Made of rigid plastic, these caps are more wear resistant than vinyl caps but not as flexible.

Metal Round Caps

More durable than plastic caps, these provide the most protection from abrasion and impact.

Hanging Round Caps

Slide these caps over a tool handle or other round object and use the eye to hang it.

Tethered Round Caps

The tethered design allows frequent access to the ends of pipe, tubing, and other round objects without ever misplacing the cap.

Sure-Grip Round Caps

A long, textured pull tab provides a sure grip for quick removal even when wearing gloves.

Roll-Resistant Round Caps

Commonly used on shipping tubes, these caps have a square head to prevent round objects from rolling during shipping and storage.

High-Temperature Round Caps

Good for electroplating, paint baking, and powder-coating applications, these caps withstand temperatures up to 440° F or 570° F.

Antistatic Round Caps

Keep equipment safe from electrical currents with these caps that have a surface resistivity of less than 10¹² ohms.

Food Industry Round Caps

Made of FDA listed materials, these caps are suitable for food contact.

High-Temperature Tapered Caps

Made of silicone, these caps withstand temperatures of 450° F for electroplating, paint-baking, and powder-coating applications. All of these flexible caps are tapered to fit a variety of unthreaded and threaded objects.

Conductive Round Caps

With a surface resistivity of less than 10⁵ ohms, these caps not only dissipate electrical charges, but can be used as an electrical shield.

Tapered Cap Assortments

Keep tapered caps of various sizes on hand to solve whatever problems arise. These flexible plastic caps are tapered to fit a variety of unthreaded and threaded objects.

Chemical-Resistant Round Caps

These caps have excellent chemical resistance for masking parts during chemical finishing applications such as plating and anodizing.

Square Caps

Slide these flexible vinyl caps on and they conform for a snug fit.

Heavy Duty Square Caps

Made of rigid plastic, these caps are more wear resistant than vinyl caps but not as flexible.

Heavy Duty Angle Caps

Made of rigid plastic, these caps provide more wear resistance to the ends of angle iron than vinyl caps but are not as flexible.

Angle Caps

Place these flexible vinyl caps over the ends of your angle iron and they conform for a snug fit.

Corner Caps

Guard the corners of fragile materials such as glass and mirrors.

Rectangular Caps

Slide these flexible vinyl caps onto rectangular objects and they conform for a snug fit.

Propane Tank Tear-Tab Caps

Designed for propane tanks such as those on forklifts and grills, these caps protect tank valves during storage and transit. Push the caps onto the valves, then tear their tab to break the seal for easy removal.

Tear-Tab Caps

Push these caps onto pipe and fittings, then tear their tab to break the seal for easy removal.

High-Visibility Pull-Tab Caps

A vibrant yellow color makes these caps stand out. They are made of flexible rubber that conforms for a snug fit. Pull the tab for easy removal.

Flexible Pull-Tab Caps

Slide these flexible vinyl caps on and they conform for a snug fit. Pull the tab for easy removal.

Squeeze Top Caps

Squeeze the dome top to remove these caps. They're commonly used as thread protectors.

Stretchable Elastic Caps

Similar to a shower cap, these caps have an elastic band that allows them to stretch and cover a variety of shapes in a range of sizes.

Heat-Shrink Round Caps

Permanently seal pipe, tubing, conduit, and even crimped electrical connections. Slide these flexible caps on and use a heat gun to tightly shrink them to the shape of whatever they are covering. Their outer surface shrinks while the inner wall flows into voids to create a sealed connection.

Stretchable Sealing Caps

Create an airtight seal around the tips of bottles and containers.

Fastener Caps

Threaded Standoff Caps

Give open-ended standoffs a finished look and protect them from dirt and debris.

Screw Caps

Conceal and protect the tops of socket head or button head screws.

Hex Nut Caps

Sized to fit hex nuts, these caps snap on for a tight hold and provide protection from corrosion.

Hinged Fastener Caps

A one-piece hinged design allows frequent access to screw heads without misplacing the top. To conceal and protect the entire screw head, insert your screw through the hole in the base and flip the hinged top over.

Snap-On Fastener Caps

To conceal and protect the entire screw head, insert your screw through the hole in the base and snap on the top.

USB Caps

Shield USB connectors from damage, contaminants, and moisture when they are not being used.

Capacitor Caps

Also known as capacitor boots, these caps protect capacitors and wire connections from damage to extend their service life. They also insulate wire terminal connections to help reduce accidental shocks.

Flange Caps

Stretchable Flange Caps

Stretch these caps over flared edges such as flanged tubing and valve handles.

Flange Caps

Snap these caps into flange bolt holes to safeguard pipe flanges during shipping, storing, and finishing applications. They all have a thick center pad to protect the flange opening and pipe threads from damage.

Adhesive-Back Flange Caps

Stick these caps on the raised surfaces of flanges or other flat surfaces for extra protection during transport and storage.

SAE Flange Caps

Protect SAE hydraulic flanges during shipping, storing, and finishing applications.

DIN Rail Caps

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

Stacking Caps and Targets

Weld these caps and targets to the ends of posts to create stackable shelving and racking systems.

Rebar Caps

Keep personnel safe from protruding rebar and pipe. Made of rigid plastic, these durable safety caps are bright orange or yellow for excellent visibility.

Hole Plugs for Enclosures

Threaded Hole Plugs

Close off unused threaded holes.

Threaded Submersible Hole Plugs

Close off unused threaded holes.

Sanitary Threaded Hole Plugs

FDA compliant for use near food, these plugs close off unused holes in equipment such as electrical enclosures to keep out debris and water.

Grease Fittings

Inject lubricant into motors, bearings, engine blocks, and all kinds of machinery.

Grease Fitting Assortments

Assortments contain straight, 45° elbow, and 90° elbow fittings.

Flow-Stop Grease Fittings

Prevent damage to bearing seals caused by over-lubrication—these fittings automatically stop grease flow when pressure is within the shut-off range.

Leakproof Grease Fittings

Keep thin grease from leaking out—the check valve on these fittings has a Buna-N seat that creates a tighter seal than check valves on other grease fittings.

Flush-Style Grease Fittings

Use these fittings in tight spaces where protruding fittings won't work.

Button-Head Grease Fittings

Often used on earth movers, mining equipment, and other heavy machinery, these fittings have a T-shaped top that holds the dispensing tip in place so it won't pop off when adding grease.

Pin-Style Grease Fittings

The pins on these fittings lock with dispensing tips for pin-style fittings to create a tight seal.

Self-Tapping Grease Fittings for Unthreaded Holes

Ensure a secure fit in unthreaded holes—these fittings cut threads as they’re installed. They're also known as hydraulic grease fittings.

Grease Fittings for Unthreaded Holes

Drive these fittings into unthreaded holes. They're also known as hydraulic grease fittings.

Grease Fitting Adapters

When the size or thread type of a fitting doesn't match an existing opening, use these adapters to make the connection.

Grease Fitting Manifolds

Lubricate multiple points from a single location.

Grease Fitting Tools for Unthreaded Holes

Tap these tools once or twice with a hammer to install fittings.

Remote-Access Grease Fittings

Access difficult-to-reach lubrication points from up to 10 ft. away.

Oil Fittings

Install these fittings into threaded holes.

Screw-In Sights

Shatter-Resistant Sights

The window and body are made from a single piece of plastic, making these sights more shatter resistant than sights with a glass window.

Sights

These sights have a glass window.

Easy-View All-Plastic Sights

Machined from one piece of stain- and impact-resistant plastic.

Easy-View Sights

View tank contents from multiple angles through the plastic domed window.

High-Visibility Sights

Easily view liquid movement and level changes from a distance—these sights have an indicator ball inside the glass window.

Sights for Oil Inspection

Continuously monitor oil quality through the clear plastic reservoir, and use the attached drain valve to remove water accumulation.

High-Pressure Sights

With a thick glass window fused to a metal body, these sights resist cracking at high pressures.

High-Temperature Sights

Often used in kilns and other heating equipment, these sights have a quartz window that can withstand temperatures up to 1600° F. They're also known as peep sights.

Cleanout Plugs

Close off your drain cleanout pipe with these plugs.

Pressure and Vacuum Monitoring and Control

Quick-Install Pressure Test Fittings

Tighten these threaded fittings with your hands for a secure connection in testing, flushing, venting, and plugging applications—no tools, tape, or sealant required.

Pressure Test Fittings

Check pressure without permanently installing a gauge.

Compact Pressure-Relief Valves

Less than a quarter of the height of standard pressure-relief valves, these are often installed on tanks in low-clearance areas.

Square-Head Expansion Plugs

Turn the square head of the plug into the sealing ring to close off pipe openings.

Drums

Drum Plugs

Install these plugs into drum holes using a drum-plug wrench.

Drum Plug Gaskets

Add a gasket or replace one that's worn out to ensure a tight seal.

Locking Fill Caps for Drums

Prevent tampering with the contents of your drum while allowing access for filling.

Drum Locks

Secure 30- and 55-gallon steel drums.

Breather Vents

Protect against excess vacuum and pressure in cylinders, gear boxes, enclosures, manifolds, and tanks.

Tire Valve Caps

Keep dust and debris out of your tire valve.

Iron and Steel Threaded Pipe and Pipe Fittings

Compact Extreme-PressureSteel Threaded Pipe Fittings

Compact Precision Extreme-PressureSteel Threaded Pipe Fittings

Extreme-Pressure Steel Threaded Pipe Fittings

Low-Pressure Iron and Steel Threaded Pipe Fittings

Low-Pressure Cast Iron Threaded Pipe Fittings

Low-Pressure Galvanized Ironand Steel Threaded Pipe Fittings

Low-Pressure Galvanized SteelThreaded Pipe Fittings with Sealant

High-Pressure Iron and Steel Threaded Pipe Fittings

High-Pressure Galvanized Steel Threaded Pipe Fittings

Medium-Pressure Iron and Steel Threaded Pipe Fittings

Medium-Pressure Galvanized Ironand Steel Threaded Pipe Fittings

Stainless Steel Threaded Pipe and Pipe Fittings

Low-Pressure Stainless Steel Threaded Pipe Fittings

Premium Low-Pressure Stainless SteelThreaded Pipe Fittings with Certification

High-Pressure Stainless Steel Threaded Pipe Fittings

Extreme-Pressure StainlessSteel Threaded Pipe Fittings

Precision Extreme-Pressure StainlessSteel Threaded Pipe Fittings

Medium-Pressure StainlessSteel Threaded Pipe Fittings

Brass and Bronze Threaded Pipe and Pipe Fittings

High-Pressure Brass Threaded Pipe Fittings

High-Pressure Brass ThreadedPipe Fittings with Sealant

High-Pressure Brass ThreadedPipe Fittings for Drinking Water

High-Pressure Plated Brass Threaded Pipe Fittings

Low-Pressure Brass and Bronze Threaded Pipe Fittings

Miniature Low-Pressure Brass Threaded Pipe Fittings

Low-Pressure Brass ThreadedPipe Fittings with Sealant

Low-Pressure Plated Brass Threaded Pipe Fittings

Extreme-Pressure Brass Threaded Pipe Fittings

Precision Extreme-PressureBrass Threaded Pipe Fittings

Medium-Pressure Plated Brass Threaded Pipe Fittings

Medium-Pressure Brass andBronze Threaded Pipe Fittings

Aluminum Threaded Pipe and Pipe Fittings

Low-Pressure Aluminum Threaded Pipe Fittings

Medium-Pressure Aluminum Threaded Pipe Fittings

High-Pressure Aluminum Threaded Pipe Fittings

Titanium Threaded Pipe Fittings

Titanium Threaded Pipe Fittings

Plastic Pipe and Pipe Fittings

Thick-Wall Plastic Pipe Fittings for Water

Standard-Wall Plastic Pipe Fittings for Water

CPVC Pipe Fittings for Hot Water

Plastic Pipe Fittings for Oil

Plastic Pipe Fittings for Gasoline

UV-Resistant Polypropylene Pipe Fittings for Chemicals

High-Temperature PTFE Pipe Fittings for Chemicals

Crack-Resistant PFA Pipe Fittings for Chemicals

Drain, Waste, and Vent ABS Pipe Fittings for Chemicals

Aboveground Standard-Wall PVC PipeFittings for Drain, Waste, and Vent

Underground PVC Pipe Fittingsfor Drain, Waste, and Vent

Plastic Pipe Fitting Plugs for Food and Beverage

Hose Fittings

Industrial Quick-Disconnect Hose Couplings for Air

Industrial Quick-Disconnect HoseCoupling Size-Identification Kits

Plastic Quick-Disconnect HoseCouplings for Air and Water

Open-Flow Quick-DisconnectHose Couplings for Air and Water

ARO Quick-Disconnect Hose Couplings for Air

Compact Quick-Disconnect Hose Couplings for Air

Tru-Flate Quick-Disconnect Hose Couplings for Air

European Quick-Disconnect Hose Couplings for Air

Lincoln Quick-Disconnect Hose Couplings for Air

Ring-Lock Quick-Disconnect Hose Couplings for Air

Schrader Quick-Disconnect Hose Couplings for Air

Japanese Quick-Disconnect Hose Couplings for Air

Color/Shape-Match Quick-DisconnectHose Couplings for Air and Water

Plastic Cam-and-Groove Hose Couplings for Water

Metal Cam-and-Groove Hose Couplings for Water

Metal Cam-and-Groove HoseCouplings with Shut-Off Valve for Water

Threaded Hose Fittings for Hydraulic Fluid

International Standard ISO Minimal-SpillQuick-Disconnect Hose Couplings for Hydraulic Fluid

High-Pressure Minimal-Spill Quick-DisconnectHose Couplings for Hydraulic Fluid

International Standard ISO B Quick-DisconnectHose Couplings for Hydraulic Fluid

International Standard ISO A Quick-DisconnectHose Couplings for Hydraulic Fluid

Snap-Tite H-Shape Quick-DisconnectHose Couplings for Hydraulic Fluid

High-Pressure Thread-Lock Quick-DisconnectHose Couplings for Hydraulic Fluid

Pioneer Quick-Disconnect HoseCouplings for Hydraulic Fluid

Pin-Lug Fire Hydrant Caps

Rocker-Lug Fire Hydrant Caps and Plugs

Threaded Hose Fittings for Compressed Gas

Quick-Disconnect Garden Hose Couplings

Compact Extreme-Pressure
Steel Threaded Pipe Fittings

Compact Precision Extreme-Pressure
Steel Threaded Pipe Fittings

Low-Pressure Galvanized Iron
and Steel Threaded Pipe Fittings

Low-Pressure Galvanized Steel
Threaded Pipe Fittings with Sealant

Medium-Pressure Galvanized Iron
and Steel Threaded Pipe Fittings

Premium Low-Pressure Stainless Steel
Threaded Pipe Fittings with Certification

Extreme-Pressure Stainless
Steel Threaded Pipe Fittings

Precision Extreme-Pressure Stainless
Steel Threaded Pipe Fittings

Medium-Pressure Stainless
Steel Threaded Pipe Fittings

High-Pressure Brass Threaded
Pipe Fittings with Sealant

High-Pressure Brass Threaded
Pipe Fittings for Drinking Water

Low-Pressure Brass Threaded
Pipe Fittings with Sealant

Precision Extreme-Pressure
Brass Threaded Pipe Fittings

Medium-Pressure Brass and
Bronze Threaded Pipe Fittings

Aboveground Standard-Wall PVC Pipe
Fittings for Drain, Waste, and Vent

Underground PVC Pipe Fittings
for Drain, Waste, and Vent

Industrial Quick-Disconnect Hose
Coupling Size-Identification Kits

Plastic Quick-Disconnect Hose
Couplings for Air and Water

Open-Flow Quick-Disconnect
Hose Couplings for Air and Water

Color/Shape-Match Quick-Disconnect
Hose Couplings for Air and Water

Metal Cam-and-Groove Hose
Couplings with Shut-Off Valve for Water

International Standard ISO Minimal-Spill
Quick-Disconnect Hose Couplings for Hydraulic Fluid

High-Pressure Minimal-Spill Quick-Disconnect
Hose Couplings for Hydraulic Fluid

International Standard ISO B Quick-Disconnect
Hose Couplings for Hydraulic Fluid

International Standard ISO A Quick-Disconnect
Hose Couplings for Hydraulic Fluid

Snap-Tite H-Shape Quick-Disconnect
Hose Couplings for Hydraulic Fluid

High-Pressure Thread-Lock Quick-Disconnect
Hose Couplings for Hydraulic Fluid

Pioneer Quick-Disconnect Hose
Couplings for Hydraulic Fluid

Metal Cam-and-Groove Hose
Couplings for Chemicals and Petroleum

Plastic Cam-and-Groove Hose
Couplings for Chemicals and Petroleum

Metal Cam-and-Groove Hose Couplings with
Shut-Off Valve for Chemicals and Petroleum

International Standard ISO Minimal-Spill
Quick-Disconnect Hose Couplings for Chemicals

Cam-and-Groove Hose Couplings
for Food and Beverage

Dust Caps and Plugs for Natural
and LP Gas Hose Fittings

Quick-Disconnect Plastic-Shape Hose
Couplings for Food and Beverage

International Standard ISO B Quick-Disconnect
Hose Couplings for Food and Beverage