Joiners | McMaster-Carr

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72,605 Products

Most Likely Products

Clamp-On Framing and Fittings

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

271 products

Pipe and Pipe Fittings

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

23,424 products

Wire Splices, Connectors, and Taps

Join wire and protect the connection

379 products

All Results

Building and Machinery Hardware

Clamp-On Framing and Fittings

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

271 products

T-Slotted Framing Structural Brackets

Join T-slotted rail surfaces and corners to build virtually any structure

467 products

T-Slotted Framing Fasteners

Secure brackets and other accessories to T-slotted rails

265 products

T-Slotted Framing Mounts

Connect tubes, switches, casters, and other components to T-slotted rails

167 products

T-Slotted Framing Tool Holders

Magnets, hooks, and cups store hand tools along T-slotted framing until you’re ready to use them

84 products

T-Slotted Framing Locks and Latches

Keep T-slotted framing doors and windows closed; restrict access with a slide bolt or key

47 products

T-Slotted Framing Panel Hangers

Install solid and mesh panels on T-slotted rails to add guards and partitions

80 products

T-Slotted Framing Hinges

Install swinging components such as doors, gates, and lids on T-slotted framing structures

127 products

T-Slotted Framing Rails

Attach fittings along the continuous slots to build virtually anything

286 products

T-Slotted Framing Roller Wheels

Attach to panels, frames, and other components to move them along T-slotted rails

11 products

T-Slotted Framing Feet

Level T-slotted framing structures and anchor them to the floor

60 products

T-Slotted Framing Rail Slides

Pass T-slotted rails alongside each other to move components such as drawers, panels, and doors

21 products

T-Slotted Framing Bumpers

Cushion doors and other moving parts on T-slotted framing to prevent damage and reduce noise

29 products

T-Slotted Framing Bin-Box Holders

Hang your storage bins from T-slotted rails

16 products

T-Slotted Framing Cable Holders

Route wire, cable, and tubing along T-slotted rails

35 products

T-Slotted Framing Adjustable-Height Legs

Raise and lower conveyors and workstations with a telescoping T-slotted rail

3 products

T-Slotted Framing Strip Doors

Shield openings in T-slotted framing structures from dust and debris while permitting easy entry

5 products

T-Slotted Framing Drill Jigs

Guide bits to drill straight, accurate holes in T-slotted rails

13 products

T-Slotted Framing Shelves

Stow items too long for baskets along T-slotted rails

8 products

T-Slotted Framing Baskets

Wire mesh won’t collect dust when storing supplies on T-slotted framing structures

4 products

T-Slotted Framing Trays

Store fasteners and other small parts along T-slotted rails

19 products

T-Slotted Framing Label Holders

Identify contents on shelves, racks, and other T-slotted framing storage

3 products

T-Slotted Framing Outlet Strips

Power multiple devices in your T-slotted framing structure

2 products

T-Slotted Framing Bottle Holders

Keep drinks and other round containers handy by mounting to T-slotted rails

7 products

T-Slotted Framing Covers

Block dust and debris from entering T-slotted rails; add a wear- or slip-resistant surface

28 products

T-Slotted Framing End Caps

Snap onto T-slotted rail ends to cover sharp edges and keep out dust

39 products

T-Slotted Framing Handles

Add a grip to open and close doors, windows, and drawers or move T-slotted framing structures

39 products

T-Slotted Framing Linear Bearings

Reduce friction in repeated and automated motion along T-slotted framing

100 products

T-Slotted Framing Locking Collars

Clamp and release telescoping T-slotted rails to make adjustments

2 products

T-Slotted Framing Manifolds

Distribute air and liquid from a single supply to multiple areas in a T-slotted framing structure

10 products

T-Slotted Framing Panels

Create doors, machine guards, welding curtains, and pegboard storage with T-slotted framing

30 products

T-Slotted Framing Seals

Fill gaps around doors and panels to keep air, dust, and liquid out of T-slotted framing structures

44 products

T-Slotted Framing Track Rollers

Load rated for carrying door frames and other hardware along a T-slotted framing track system

19 products

T-Slotted Framing Panel Tracks

Push into T-slots to slide panel doors and partitions between two rails

4 products

T-Slotted Framing Braces

Reinforce joined corners of T-slotted rails for a sturdier connection than structural brackets

73 products

T-Slotted Framing Hangers

Slide along T-slotted rails and suspend objects such as tools, cable reels, and panels

8 products

T-Slotted Framing Panel Slides

Fasten to panels for doors and partitions that glide along T-slotted rails

2 products

T-Slotted Framing Hydraulic Lifts

Pump T-slotted framing work surfaces up and down by cranking the handle

2 products

T-Slotted Framing Drawer Slides

Extend and retract T-slotted rails along each other for use with drawers and pullout trays

6 products

T-Slotted Framing Casters

Move T-slotted framing structures where you need them

78 products

T-Slotted Framing Brace Ends

Pair with a T-slotted rail to make a brace of any length

17 products

Slip-On Framing and Fittings

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

408 products

Flush-Fit Framing and Fittings

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

10 products

Press-Fit Framing and Fittings

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

90 products

Bolt-Together Framing and Fittings

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

125 products

Strut Channel Framing and Fittings

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

841 products

Locking-Slotted Framing and Fittings

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

12 products

Weld-Together Framing and Fittings

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

41 products

Brackets

Connect surfaces in an assembly

351 products

Panel Hanging Brackets

Mount and remove panels

130 products

Grommets

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

70 products

Push-to-Close Latches

Automatically hold doors shut when you push them closed

9 products

Fluid Handling

Pipe and Pipe Fittings

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

23,424 products

Tube Fittings

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

15,614 products

Tube Fitting Clamps

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

144 products

Pipe Joiners

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

1 product

Hose Fittings

Create threaded, barbed, quick-disconnect, and other types of connections between lengths of hose

381 products

Hose Clamps

Connect hose to barbed hose fittings

1 product

Tube Repair Clamps

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

18 products

On-Off Valves

Start and stop flow through a line

4,108 products

Float Valve Bodies

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

77 products

Electrical Power, Networking, and Controlling

Wire Splices, Connectors, and Taps

Join wire and protect the connection

379 products

Power Connectors

Plugs, sockets, receptacles, and other connectors for powering equipment

1,547 products

Power Connector Seals

Add to the front or back of connectors to block out dust, debris, and weather

5 products

Ballast Connectors

Avoid exposure to live wires when replacing fluorescent ballasts

2 products

USB Connectors

Plugs, sockets, receptacles, and adapters to make USB connections

71 products

D-Sub Connectors

Plugs, sockets, receptacles, and adapters for connecting computers, monitors, and printers

138 products

Strain-Relief Connector Boots

Protect connectors and cords from strain, bends, and pulls

2 products

Mini Connector Thread Adapters

Join two connectors that both have internal threads

6 products

Ecomate Connectors

Connect machine tools, robots, and other vibrating equipment

14 products

Audio Connectors

Plugs, sockets, receptacles, and adapters to make audio connections

26 products

Coaxial Connectors

Plugs, sockets, receptacles, and adapters to make coaxial connections

58 products

CB Radio Connectors

Sockets and receptacles to connect CB radios

2 products

RJ45 Connectors

Plugs, sockets, and receptacles to make Ethernet connections

85 products

Mil. Spec. Connectors

Meet strict military standards or are compatible with Mil. Spec. connectors

154 products

ix Industrial Sockets

Pair with plugs to add ix Industrial connections to printed circuit boards

6 products

AMP Connectors

Build-your-own and ready-to-use AMP connectors

80 products

Molex Connectors

Plugs, sockets, and housings for making Molex connections

165 products

Breakaway Connectors

If pulled or stressed, these disconnect without damaging cables and equipment

3 products

Latching Connectors

Protect connections in wet or harsh environments while keeping them accessible

173 products

Sure Seal Connectors

A PVC housing keeps out liquids and dust and resists chemicals

6 products

DMX Connectors

Replace damaged plugs and sockets on lighting cables

2 products

Mini Connectors

Plugs, sockets, and receptacles send power and control signals to equipment and automated systems

78 products

Micro 360 Connectors

Plugs and sockets to make control and data connections in tight spaces

20 products

Metric Circular Connectors

Plugs, sockets, receptacles, and adapters for equipment with metric connections

289 products

Amphenol Connectors

Attach wires to a circuit board

32 products

Han Connectors

Plugs and sockets to make Han connections

8 products

Solenoid Valve Connectors

Sockets and receptacles to connect solenoid components, such as valves and motors

20 products

HDMI Adapters

Convert one HDMI size or style to another

11 products

Power Cords

Connect equipment and devices to a power source

255 products

Ethernet Cords

Send data between computers, printers, servers, and switches

308 products

Metric Circular Cords

Send power and signal to equipment with metric connections

478 products

Solenoid Valve Cords

Connect solenoid components, such as valves and motors

59 products

Fiber-Optic Cords

Connect computers, servers, and switches in a fiber-optic network

34 products

Video Adapter Cords

Send video between devices with different connections

8 products

Audio Cords

Hook up speakers to an audio signal

13 products

Thunderbolt Cords

Transmit data and video at high speeds between PCs, mobile devices, and displays

2 products

DMX Cords

Connect to lighting equipment with five-pin XLR connections

3 products

Profibus Cords

Transmit data in automation systems and other networks

4 products

Coaxial Cords

Transmit audio, video, and data with minimal signal loss

70 products

Sensor Signal Adapter Cords

Send data between sensors and receivers that have different signal types

2 products

DisplayPort Cords

Send video from computers to monitors and other displays

26 products

Mini Cords

Often used to send power and control signals to automated systems, motors, and pumps

207 products

D-Sub Cords

Connect computers, monitors, printers, and other devices with DB connections

199 products

USB Cords

Transfer data between computers, printers, and mobile devices

255 products

HDMI Cords

Send high-definition signals to monitors, TVs, and projectors

21 products

ix Industrial Cords

Send data or signals between equipment, such as a servomotor and encoder

6 products

Extension Cords

Extend the reach of power from an outlet

386 products

Extension Cord Locks

Cover mated connectors on extension cords to prevent disconnection

3 products

USB Cord Locks

Keep your USB cord from shaking loose or being yanked out

2 products

Terminals, Ferrules, and Lugs

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

1,268 products

Electrical Connector Holding Tools

Hold electrical connectors in place to safely join wires

1 product

Terminal Splitters

Divide one male quick-disconnect connection into two

4 products

Terminal and Splice Kits

Maintain a supply of extra terminals and splices to join and terminate wire

17 products

Terminal Blocks

Create tidy rows of wire connections that you can identify, test, and adjust on the spot

699 products

Distribution Blocks

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

47 products

Distribution Bars

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

31 products

Distribution Posts

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

4 products

Terminal Adapters

Convert wire terminals from one connection type or gender to another

7 products

Electrical Connector Caps

Protect data connectors when not in use

78 products

Slip Rings

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

4 products

Wire Splice Covers

Seal out dust and moisture to protect electrical connectors

3 products

Welding Cable Connectors

Plugs and sockets to deliver power to welding cable

13 products

DIN Rail Mounting Adapters

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

15 products

Cord Grips

Securely connect cords to enclosures while sealing out dirt and moisture

1,176 products

Conduit Support Clips

Mount flexible plastic conduit to walls and machines

8 products

Conduit and Fittings

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

1,336 products

Weatherheads

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

10 products

Conduit Bumpers

Shield sections of flexible conduit from impact to prevent wear

5 products

Cable Entry Panels

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

128 products

Grounding Lugs

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

1 product

Grounding Blocks

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

8 products

Grounding Clamps

Attach grounding wire to equipment to ground electrical current

6 products

Grounding Bars

Create a convenient central grounding point by connecting multiple ground wires

15 products

EMI/RFI Suppressing Clips

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

64 products

Battery Connectors

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

43 products

Circuit Board Terminals

Connect wire to circuit boards

9 products

Battery Terminals

Connect cable to battery posts to power vehicles and machines

131 products

Circuit Board Connectors

Connect flat flexible cable to circuit boards

10 products

Jumper Cords

Ready to connect with a terminal at one or both ends

10 products

Battery Cords

Connect batteries to each other

31 products

Ribbon Switch Termination Kits

Pair with your cut-to-length ribbon switch for a complete system

2 products

Fastening and Joining

Wood Joiners

Connect and repair wood pieces and joints

9 products

Dowel Pins

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

3,502 products

Dowel Pin Stock

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

53 products

Binding Barrels

Create custom low-profile fasteners with binding barrel posts, caps, and screws

893 products

Joint Clamps for Wood

Make secure joints between boards, butcher blocks, and countertops

3 products

Snap-In Nuts

Push into square holes in thin materials to add bolts for aligning off-center parts

99 products

Dowel Nuts

Form joints in blind holes in wood

11 products

Studs

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

673 products

Weld Nuts

Weld to metal surfaces to add permanent threads

589 products

Adhesive-Mount Nuts

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

166 products

Document Clips

Hold loose papers together without creating a permanent mark

24 products

Single-End Studs

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

184 products

Anchors

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

970 products

Standoff Caps

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

66 products

Panel Clips

Slide over the edge of two or more panels to hold them together without tools or fasteners

3 products

Welding Lugs

Screw, hammer, or crimp on to secure welding cable connections

13 products

Fabricating and Machining

Clamping Screws

Apply pressure through a flat-tipped screw to hold material in place

35 products

Pipe Welding Clamps

Position and hold pipe joints for welding and assembly

14 products

Clamping Screw Mounting Bases

Thread clamping screw clamps into the holes to hold workpieces

7 products

Bar Clamps

Secure large materials with adjustable arms for even pressure distribution

88 products

Clamp Holding Screws

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

52 products

Clamp Holding Washers

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

12 products

Corner Clamps

Align and secure materials at a corner joint

4 products

C-Clamps

Temporarily secure workpieces together or to a work surface

131 products

Magnetic Clamps

Hold magnetic workpieces at common angles such as 90° or 45°

26 products

Band Clamps

Secure round and oddly shaped workpieces

2 products

Pliers Clamps

Clamp and lock workpieces with plier-style jaws for secure handling or transport

35 products

Spring Clamps

Hold lightweight materials in place, then squeeze to release

41 products

Panel Alignment Clamps

Align and hold sheet metal panels for drilling, riveting, and welding

20 products

Toggle Clamps

Lock workpieces onto worktables or objects

350 products

Clothespins

Hold light items, secure covers, and seal bags

4 products

Swivel Pads

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

8 products

Holders for Locking Pliers

Secure to a table or benchtop and slide in locking pliers for a hands-free way to hold your work

1 product

Support Blocks

Support setup clamps for quick height adjustments

3 products

Fixture Kits

Everything needed to mount workpieces of different sizes to your machine table

50 products

Alignment Locks

Precisely align your mold halves

25 products

Fixture Clamps

Secure your workpiece to a fixture table so it won't move during machining

439 products

Material Handling

Conveyors

Roller, skate wheel, ball transfer, belt, and vacuum conveyors

14 products

Conveyor Belt Lacing Clips

Hold belt lacing in place during installation

4 products

Conveyor Belt Lacing

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

369 products

Conveyor Belt Lacers

Install conveyor belt lacing

31 products

Conveyor Belt Lacing Templates

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

9 products

Conveyor Belt Lacing Pins

Insert and lock in place to connect belt lacing ends

79 products

Conveyor Guide Clamps

Connect conveyor guides to each other and secure them in place

39 products

Conveyor Accessory Mounts

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

61 products

Scaffold Clamps

Construct scaffolding and secure supports, such as railings

2 products

Routing Clamps

Secure routed lines of pipe, tubing, and conduit

690 products

Ring Links

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

47 products

Forklift Tie-Down Clamps

Create anchor points on forklift forks to secure loads for transport

1 product

Containers, Storage, and Furniture

Toilet Partitions

Separate toilets and urinals for privacy

120 products

Toilet Partition Door Hardware

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

6 products

Toilet Partition Color Samples

See the color choices before ordering toilet partitions

3 products

Toilet Partition Mounting Hardware

Mount and connect toilet and urinal partition components

18 products

Toilet Partition Trim Shoes

Replace the trim shoes on the bottom of toilet partition columns

11 products

Metal Panels

Close off openings in structures while allowing air to pass through

253 products

Stacking Caps and Targets

Turn the ends of posts into stackable shelving and rack systems

6 products

Power Transmission

Pulley and Sprocket Bushings

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

721 products

Belt Joining Kits

Everything you need to soften belt ends and join them together

12 products

V-Belt Connectors

Join ends of adjustable-length V-belting

4 products

Measuring and Inspecting

Power Consumption Meters

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

1 product

Load Cell Junction Boxes

Join multiple load cells to combine their weight measurements

2 products

Micrometer Head Mounting Brackets

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

16 products

Raw Materials

Carbon Fiber

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

12 products

Wood

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

80 products

Facility and Grounds Maintenance

Rebar

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

9 products

Rebar Caps

Brightly colored to alert workers to exposed rebar and pipe

4 products

Lighting

Light Switch/Receptacles

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

3 products

Safety Equipment

Chain Barrier Links

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

6 products

Communication

Tag Rings

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

73 products