Round Tube Connectors | McMaster-Carr

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System of Measurement

Pipe Size

Material

Stainless Steel

Fitting Type

Expansion Joint

Reducing Adapter

Fitting Connection

Expand to Connect

O-Ring Face Seal

Thread Type

Gender

For Use With

Abrasive Materials

Dry Abrasive Materials

Connects To

Corrugated Pipe

Tube OD

Length

Pipe Schedule

Maximum Pressure @ Temperature

150 psi @ 70° F

400 psi @ 70° F

0.5 psi @ 72° F

15 psi @ 72° F

20 psi @ 72° F

25 psi @ 72° F

30 psi @ 72° F

35 psi @ 72° F

40 psi @ 72° F

45 psi @ 72° F

50 psi @ 72° F

55 psi @ 72° F

60 psi @ 72° F

Threading

Threaded on Both Ends

Threaded on One End

Pipe Material

Stainless Steel

Export Control Classification Number (ECCN)

DFARS Specialty Metals

REACH

RoHS

Compliant with Exemptions

Fitting Material

Stainless Steel

Tube Material

Stainless Steel

ID

Flange Material

Stainless Steel

OD

Hose ID

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48,122 Products

Building and Machinery Hardware

Slip-On Framing Connectors

Slip-On Framing Connectors

Tighten onto slip-on framing rails to build guards, railings, and racks

Slip-On Framing Rail Ends

Slip-On Framing Rail Ends

Mount slip-on framing structures to floors, walls, and ceilings

Slip-On Framing Rail Supports

Slip-On Framing Rail Supports

Brace long runs of slip-on framing rails, either along walls or through them

Clamp-On Framing Connectors

Clamp-On Framing Connectors

Two-piece design wraps around rails to modify structures without disassembling them

Clamp-On Framing Rail Ends

Clamp-On Framing Rail Ends

Connect to clamp-on framing rails to mount your structure to floors, walls, and ceilings

Clamp-On Framing Panel Hangers

Clamp-On Framing Panel Hangers

Install panels to create guards and partitions within your clamp-on framing structure

Clamp-On Framing Monitor Mounts

Clamp-On Framing Monitor Mounts

Hang flat-panel displays from your clamp-on framing structure

Clamp-On Framing Rail Supports

Clamp-On Framing Rail Supports

Run clamp-on framing rails in parallel to support long lengths without additional components

Flush-Fit Framing and Fittings

Flush-Fit Framing and Fittings

Create smooth stair and platform railings by sliding fittings into rails and tightening the screws

Leveling Mount Inserts

Leveling Mount Inserts

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

Fluid Handling

Tube Fittings

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

14,548 products

Tube Fitting Sleeves

Tube Fitting Sleeves

Pair with nuts and fittings to form a secure connection on tubing

Tube End Caps

Cover the ends of tube to keep out dirt and debris

Tube Fitting Rings

Tube Fitting Rings

Prevent leaks at tubing connection points

Tube Fitting Nuts

Tube Fitting Nuts

Tighten to create a strong seal between tube and tube fittings

Tube End Plugs

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

Tubing Flow Stops

Tubing Flow Stops

Temporarily block water flow to make soldering repairs without waiting for your line to drain

Tube Supports

Slip into plastic and rubber tubing to prevent them from collapsing

Tube Fitting Clamps

Tube Fitting Clamps

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

Pipe and Pipe Fittings

Pipe and Pipe Fittings

Generally thicker and more rigid than tubing for distributing liquids and gases through your facility

22,090 products

Tube Repair Clamps

Tube Repair Clamps

Mend small holes, cracks, and full-circle breaks in tubing without dismantling your system

Manifolds

Distribute air or fluid to multiple places from a single source; also called headers

Hose Crimpers

Crimp ferrules onto hose to secure fittings

Air Chucks

Connect air hose to Schrader valves, which are common on tires and hydraulic systems

Junction Blocks

Junction Blocks

Organize and separate multiple lines in a pipe system; air and fluid flow through the threaded holes

Tube Crimping Tools

Tube Crimping Tools

Create a leak-tight seal between tubing and fittings without heat or solder

Hose and Hose Fittings

Hose and Hose Fittings

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

Strainers

Install next to valves and pumps to catch debris in your line

Fastening and Joining

Tube-Connecting Nuts

Tube-Connecting Nuts

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

Spring Button Clips

Spring Button Clips

Join pieces of telescoping tubing using spring force

Gravity Pins

Slip through holes in telescoping tubing and wrap around to secure

Measuring and Inspecting

Hose Coupling Size-Identification Kits

Hose Coupling Size-Identification Kits

Match your hose coupling to one of the plugs to determine its size without measuring

Lubricating

Grease Fitting Adapters

Grease Fitting Adapters

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

Facility and Grounds Maintenance

Faucet Spout Thread Adapters

Faucet Spout Thread Adapters

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

Safety Equipment

Respirator Temperature Controllers

Respirator Temperature Controllers

Adjust the temperature of the air flowing into your respirator

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