Joiners | McMaster-Carr

Filter by

Material

Shape

System of Measurement

Pipe Size

Fitting Type

Thread Type

Fitting Connection

Length

Tube OD

Gender

For Use With

Thread Size

Connects To

Diameter

Color

Pipe Material

USMCA Qualifying

Pipe Schedule

REACH Compliance

RoHS Compliance

Tube Material

DFARS Compliance

Maximum Pressure @ Temperature

How can we improve?

53,743 Products

Most Likely Products

Clamp-On Framing and Fittings

Clamp-On Framing and Fittings

Two-piece fittings let you modify assembly stations, conveyors, and racks without dismantling them

Electrical Connectors and Cords

Electrical Connectors and Cords

Supply power to equipment by combining plugs, sockets, receptacles, and cords

Press-Fit Framing and Fittings

Press-Fit Framing and Fittings

Set up temporary partitions, guards, and displays using only a hammer

T-Slotted Framing and Fittings

T-Slotted Framing and Fittings

The most versatile system, attach fittings along the continuous slots to build virtually anything

Brackets

Connect surfaces in an assembly

Pipe Fittings

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

12,637 products

All Results

Building and Machinery Hardware

Clamp-On Framing and Fittings

Clamp-On Framing and Fittings

Two-piece fittings let you modify assembly stations, conveyors, and racks without dismantling them

Press-Fit Framing and Fittings

Press-Fit Framing and Fittings

Set up temporary partitions, guards, and displays using only a hammer

T-Slotted Framing and Fittings

T-Slotted Framing and Fittings

The most versatile system, attach fittings along the continuous slots to build virtually anything

Slip-On Framing and Fittings

Slip-On Framing and Fittings

Insert rails into fittings and tighten screws to make guards, railings, and racks

Flush-Fit Framing Connectors

Flush-Fit Framing Connectors

Join flush-fit framing rails to build smooth stair and platform railings

Flush-Fit Framing Rail Ends

Flush-Fit Framing Rail Ends

Secure flush-fit framing structures to floors, walls, and ceilings

Strut Channel Framing and Fittings

Strut Channel Framing and Fittings

Secure fittings in the U-shaped channel to route conduit and pipe or build other structures

Bolt-Together Framing and Fittings

Bolt-Together Framing and Fittings

Fasten through equally spaced holes to build and adjust guards, tables, and racks

Weld-Together Framing and Fittings

Weld-Together Framing and Fittings

Permanently join rails and fittings to assemble heavy duty racks, shelving, and work tables

Locking-Slotted Framing and Fittings

Locking-Slotted Framing and Fittings

Make platforms, bases, and other structures that stand up to more movement than T-slotted framing

Brackets

Connect surfaces in an assembly

Panel Hanging Brackets

Panel Hanging Brackets

Mount and remove panels

Grommets

Protect wire, cable, and cords from holes with sharp or rough edges

Push-to-Close Latches

Push-to-Close Latches

Automatically hold doors shut when you push them closed

Electrical

Electrical Connectors and Cords

Electrical Connectors and Cords

Supply power to equipment by combining plugs, sockets, receptacles, and cords

Wire Splices

Join wire and protect the connection

Terminal Blocks

Terminal Blocks

Mate with terminals to complete circuits in control panels, motors, and small machines

Electrical Cord Locks

Electrical Cord Locks

Cover mated connectors on electrical cords to prevent disconnection

Distribution Bars

Distribution Bars

Route electricity within switchboards and battery banks; also known as bus bars

Terminal Adapters

Terminal Adapters

Convert wire terminals from one connection type or gender to another

Terminal Splitters

Terminal Splitters

Divide one male quick-disconnect connection into two

Terminal and Splice Kits

Terminal and Splice Kits

Join and terminate wire to connect circuits

Terminals

Attach to the end of wire to connect circuits in control panels, motors, and small machines

Electrical Connector Holding Tools

Electrical Connector Holding Tools

Hold electrical connectors in place to safely join wires

Split-Bolt Connectors

Split-Bolt Connectors

Splice large wire sizes without special tools

Distribution Blocks

Distribution Blocks

Distribute electricity from a single power source to several devices in a circuit

Distribution Posts

Distribution Posts

Send power from one source to several devices in a circuit in less space than a distribution block

Electrical Connector Boots

Electrical Connector Boots

Protect connectors and cords from strain, bends, and pulls

Circuit Board Terminals

Circuit Board Terminals

Connect wire to circuit boards

Electrical Connector Caps

Electrical Connector Caps

Protect data connectors when not in use

Slip Rings

Maintain an electrical link between a moving part and a stationary part

Battery Terminals

Battery Terminals

Connect cable to battery posts to power vehicles and machines

Battery Connectors

Battery Connectors

Quickly make and break connections between a battery and a charger or equipment

Cable Entry Panels

Cable Entry Panels

Pass multiple cords into an enclosure while sealing out moisture, dust, and other contaminants

DIN Rail Mounting Adapters

DIN Rail Mounting Adapters

Attach to components not made for DIN rail and clip on to install

Cord Grips

Securely connect cords to enclosures while sealing out dirt and moisture

Weatherheads

Bring power into buildings and protect the entry point from rain and snow

Interference Suppressing Clips

Interference Suppressing Clips

Shield cable from EMI and RFI that can distort signals; also known as ferrite beads

Conduit and Conduit Fittings

Conduit and Conduit Fittings

Protect wiring from impact and the environment in runs indoors, outdoors, and underground

Grounding Lugs

Create a common grounding path for internal components and circuits, as well as the enclosure body

Grounding Blocks

Grounding Blocks

In cabinets and other tight spaces, ground multiple wires at one convenient spot

Grounding Bars

Create a convenient central grounding point by connecting multiple ground wires

Light Switch/Receptacles

Light Switch/Receptacles

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

Fluid Handling

Pipe Fittings

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

12,637 products

Pipe Joiners

Connect heavy and difficult-to-position gasketed pipe without powered equipment

Expansion Joints

Expansion Joints

Reduce stress, vibration, and noise in piping systems by absorbing movement

Pipe Nipples and Pipe

Pipe Nipples and Pipe

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

Pipe Flanges

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

Pipe Fitting Clamps

Pipe Fitting Clamps

Connect easy-access and grooved-end pipe fittings to pipe

Pipe Bleed Rings

Pipe Bleed Rings

Access inside a pipe line to vent pressure, drain liquid, and take samples

Tube Fittings

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

13,973 products

Tube Fitting Clamps

Tube Fitting Clamps

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

Hose and Hose Fittings

Hose and Hose Fittings

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

Tube Repair Clamps

Tube Repair Clamps

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

Float Valve Bodies

Float Valve Bodies

Pair with floats and rods to create float valves that meet your needs

Fastening and Joining

Binding Barrels and Screws

Binding Barrels and Screws

Thread together for a low-profile fastener

Dowel Pins

Align parts before assembly or use as a pivot, shaft, or hinge to join moving components

Dowel Pin Stock

Dowel Pin Stock

Cut to the length you need for positioning and holding parts in place

Wood Joiners

Connect and repair wood pieces and joints

Joint Clamps for Wood

Joint Clamps for Wood

Make secure joints between boards, butcher blocks, and countertops

Fastener Assortments

Fastener Assortments

Stay prepared by keeping fasteners in common sizes and materials on hand

Studs

Press, weld, or screw in place to add a threaded fastening point

Set Screws

Exert pressure at the tip to hold parts in place, unlike screws that hold material together with threads

Anchors

Secure anything from signs to heavy machinery in concrete, brick, and drywall

Weld Nuts

Weld to metal surfaces to add permanent threads

Adhesive-Mount Nuts

Adhesive-Mount Nuts

Attach threads to material that’s too thin for a threaded insert

Dowel Nuts

Form joints in blind holes in wood

Document Clips

Hold loose papers together without creating a permanent mark

Standoff Caps

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

Single-End Studs

Single-End Studs

Use the unthreaded end as a pivot point, hinge, shaft, or locator pin

Fabricating and Machining

Clamps

Hold workpieces securely in place

Clamp Holding Screws

Clamp Holding Screws

Replace worn holding screws in clamps or customize with different sizes or styles

Clamp Holding Washers

Clamp Holding Washers

Replace worn washers on open-arm toggle clamps to keep holding screws in place

Clothespins

Hold light items, secure covers, and seal bags

Swivel Pads

Attach to the ends of screws, threaded studs, or C-clamps to apply even pressure on uneven surfaces

Alignment Locks

Alignment Locks

Precisely align your mold halves

Power Transmission

Belt Joining Kits

Belt Joining Kits

Everything you need to soften belt ends and join them together

Pulley and Sprocket Bushings

Pulley and Sprocket Bushings

Mount between a rotating shaft and equipment to secure the shaft and reduce vibration

V-Belt Connectors

V-Belt Connectors

Join ends of adjustable-length V-belting

Containers, Storage, and Furniture

Toilet Partitions

Toilet Partitions

Separate toilets and urinals for privacy

Toilet Partition Door Hardware

Toilet Partition Door Hardware

Replace the hinges, latches, hooks, and handles on toilet partitions

Toilet Partition Color Samples

Toilet Partition Color Samples

See the color choices before ordering toilet partitions

Toilet Partition Mounting Hardware

Toilet Partition Mounting Hardware

Mount and connect toilet and urinal partition components

Toilet Partition Trim Shoes

Toilet Partition Trim Shoes

Replace the trim shoes on the bottom of toilet partition columns

Metal Panels

Close off openings in structures while allowing air to pass through

Stacking Caps and Targets

Stacking Caps and Targets

Turn the ends of posts into stackable shelving and rack systems

Material Handling

Conveyor Belt Lacing

Conveyor Belt Lacing

Join conveyor belt ends with a strong, reliable connection; easier to install than endless belts

Conveyor Belt Lacing Templates

Conveyor Belt Lacing Templates

Guide hole-punching and belt-cutting when installing bolt-on lacing

Conveyor Belt Lacing Pins

Conveyor Belt Lacing Pins

Insert and lock in place to connect belt lacing ends

Conveyor Belt Lacing Clips

Conveyor Belt Lacing Clips

Hold belt lacing in place during installation

Conveyor Belt Lacers

Conveyor Belt Lacers

Install hook- or staple-style conveyor belt lacing

Conveyor Guide Clamps

Conveyor Guide Clamps

Connect conveyor guides to each other and secure them in place

Conveyor Accessory Mounts

Conveyor Accessory Mounts

Position guides or sensors to the exact spot needed for your conveyor

Ring Links

Bend, hammer, or twist closed to connect chain links and attach fittings

Raw Materials

Wood

Commonly used to build ramps, crates, and prototypes or to make repairs

Carbon Fiber

The strongest composite we offer; comparable in strength to 6061 aluminum but lighter in weight

Measuring and Inspecting

Power Consumption Meters

Power Consumption Meters

Measure the amount of power your devices consume to help calculate energy costs

Load Cell Junction Boxes

Load Cell Junction Boxes

Join multiple load cells to combine their weight measurements

Micrometer Mounting Brackets

Micrometer Mounting Brackets

Mount a micrometer head to your jig or fixture to accurately position workpieces

Safety Equipment

Chain Barrier Links

Chain Barrier Links

Split in half and snap back together to securely connect lengths of chain

Facility and Grounds Maintenance

Rebar

Reinforces concrete to reduce the chance it will crack from expansion and contraction

Communication

Tag Rings

Loop onto tags to attach them to lanyards, key rings, and other objects

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