Tube Ends | McMaster-Carr

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Tube OD

Pipe Size

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UN/UNF (SAE Straight)

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Tube Material

Thread Size

Maximum Pressure @ Temperature

Tube ID

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Compliant with Exemptions

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Hose ID

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27,255 Products

Building and Machinery Hardware

Protective Plugs

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

1,010 products

Protective Caps

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

1,045 products

Leveling Mount Inserts

Slip onto equipment and furniture to add threaded-stud leveling feet

113 products

Leveling Mounts

Level machines and workbenches on uneven surfaces, reduce vibration, and protect floors

10 products

Fastening and Joining

Weld Nuts

Weld to metal surfaces to add permanent threads

133 products

Tube-Connecting Nuts

Push inside tubes to join them with a threaded stud instead of welding

21 products

Push Nuts

Press onto threads for a light duty hold that’s faster to install than typical nuts

65 products

Quick-Release Pin Receptacles

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

35 products

Quick-Release Pin Retaining Caps

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

23 products

Standoff Caps

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

66 products

Retaining Rings

Hold components on a shaft

2,362 products

Cartridge Sealing Caps

Slip over the tips of adhesive and sealant cartridges to keep contents from hardening

1 product

Fluid Handling

Tube Fittings

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

15,640 products

Tube End Caps

Cover the ends of tube to keep out dirt and debris

395 products

Tube Fitting Clamps

Quickly secure connections between tube fittings, including sanitary and high-vacuum fittings

145 products

Tube Supports

Slip into plastic and rubber tubing to prevent them from collapsing

93 products

Tube End Plugs

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

260 products

Tube End Cap and Plug Kits

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

2 products

Pipe Caps

Cover the ends of pipe to keep out dirt and debris

606 products

Pipe Plugs

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

1,389 products

Pipe Flanges

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

209 products

Pipe Fittings

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

12 products

Hose and Hose Fittings

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

2,151 products

Hose Crimpers

Crimp ferrules onto hose to secure fittings

43 products

Bore Sealing Plugs

Permanently seal unthreaded holes in pneumatic and hydraulic components

69 products

Containers, Storage, and Furniture

Stacking Caps and Targets

Turn the ends of posts into stackable shelving and rack systems

6 products

Dust Covers

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

6 products

Material Handling

Caster Sockets

Mount on the inside corners of channel and other framing to attach stem casters

19 products

Valve Stem Caps

Keep dust and debris out of tire valves

2 products

Conveyor Guide Mounting Rod Caps

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

7 products

Fabricating and Machining

Fixture Plate Plugs

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

1 product

Electrical

Cold-Shrink Tubing End Caps

Seal crimped electrical connections without heat or tools to protect against moisture

4 products

Heat-Shrink Tubing End Caps

Seal moisture out of crimped electrical connections

26 products

DIN Rail Caps

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

2 products

Capacitor Boots

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

3 products

Heating, Ventilation, and Air Conditioning

Air Conditioner Service Valve Caps

Seal off AC service valves to prevent refrigerant from leaking out

2 products

Facility and Grounds Maintenance

Faucet Spout Thread Adapters

Connect the female end of your garden hose to a faucet spout

4 products

Drain Cleanouts

Create an access point to inspect and clean floor drain pipelines

3 products

Rebar Caps

Brightly colored to alert workers to exposed rebar and pipe

4 products