Joints | McMaster-Carr

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62,093 Products

Most Likely Products

Rod Ends

Use with connecting rods to support loads and control steering, tensioning, or pivoting motion

1,623 products

U-Joints

Transfer torque between shafts at an angle; handle more torque and misalignment than flexible shafts

174 products

T-Slotted Framing and Fittings

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

1,157 products

Clamp-On Framing and Fittings

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

264 products

Pipe Fittings

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

12,690 products

All Results

Power Transmission

Rod Ends

Use with connecting rods to support loads and control steering, tensioning, or pivoting motion

1,623 products

Rod End Nuts

Attach to rods, pipe, and tubing to make pivot and hinge points

8 products

Rod End Inserts

Attach to rod ends to increase the amount of misalignment they can handle

29 products

Rod End Seals

Keep dirt out and lubrication in to extend the life of rod ends

16 products

Swivel Joints

Handle shaft misalignment where ball joint rod ends won’t fit; also known as spherical bearings

136 products

U-Joints

Transfer torque between shafts at an angle; handle more torque and misalignment than flexible shafts

174 products

Shaft Couplings

Connect two shafts to transfer rotary motion from one to the other

2,110 products

Shear Couplings

Sever the connection between shafts when there's too much torque to protect parts from breaking

21 products

Flexible Shafts

Snake around curves and obstructions to transmit rotary motion along any path

41 products

Machinable Shaft Ends

Mill custom pulleys, threaded hubs, sprockets, collars, and sensor targets and mount them to shafts

56 products

Bore Reducers

Adapt the bore of a component to a smaller size for mounting on a shaft

31 products

Shaft Adapters

Increase or reduce your shaft's diameter to fit equipment, or replace damaged shaft ends

54 products

Gas Spring End Fittings

Connect gas springs to mounting studs and brackets

65 products

Hydraulic Cylinder Mounts

Restrain cylinders and secure loads to the end of the rod

4 products

Pivot Bearings

Best for applications that require small, precise oscillating motion with limited twisting

20 products

Bearing Adapter Sleeves

Close gaps between your bearing and shaft for a tight fit

29 products

Flanged Sleeve Bearings

A sleeve and thrust bearing in one to support both parallel and perpendicular loads

14 products

Torque Limiters

Keep torque at or below a set limit to control tension or braking or protect machinery from overload

52 products

Pulley and Sprocket Bushings

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

10 products

Air Flow Control Valves

Control the speed of air-powered equipment by adjusting the volume of airflow entering or exiting

198 products

Building and Machinery Hardware

T-Slotted Framing and Fittings

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

1,157 products

Clamp-On Framing and Fittings

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

264 products

Slip-On Framing and Fittings

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

434 products

Press-Fit Framing and Fittings

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

88 products

Flush-Fit Framing and Fittings

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

11 products

Strut Channel Framing and Fittings

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

20 products

Locking-Slotted Framing and Fittings

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

6 products

Bolt-Together Framing and Fittings

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

3 products

Positioning Arms

Mount and position tools, small electronics, and displays

251 products

Positioning Arm Mounts

Add a mounting surface to positioning arms

4 products

Hinges

Mount to doors and panels so they can swing open and closed

1,567 products

Brackets

Connect surfaces in an assembly

350 products

Prop Rods

Prop hood, trunk, and other lids open at a variety of angles

1 product

Lid Supports

Keep lids on cabinets, hatches, and chests open and then close them smoothly or softly

61 products

Joint Covers

Shield rotating joints to keep lubricants in and contaminants out

24 products

Thresholds

Transition between flooring surfaces and reduce gaps between doors and floors

1 product

Padlockable Eyes

Mount to a door and its frame and secure with a padlock to keep doors closed

4 products

Hasp Strike Plates

Receive the arm of your hasp and secure with a padlock to lock doors and containers

12 products

Hasps

Swing the arm over the strike plate and secure with a padlock or key to lock doors and containers

94 products

Door Tracks

Hang panels to slide over openings when there’s not space for a swinging door

38 products

Door Installation Kits

Complete your door installation with a handle or knob, strike plate, and hinges

12 products

Control Cables

Weave around obstructions to operate valves, throttles, and other machinery from a distance

84 products

Fluid Handling

Pipe Fittings

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

12,690 products

Expansion Joints

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

159 products

Pipe Nipples and Pipe

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

7,398 products

Pipe Flanges

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

1,168 products

Pipe Joiners

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

1 product

Rotary Unions

Transfer air, water, oil, and steam from supply lines to continuously revolving drums and rollers

105 products

Pipe Fitting Clamps

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

20 products

Pipe Plugs

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

1,389 products

Pipe Caps

Cover the ends of pipe to keep out dirt and debris

606 products

Pipe Locknuts

Thread onto the male end of a pipe fitting so it won't loosen from vibration

119 products

Pipe Collars

Clamp pipe passing through floors and walls

24 products

Tube Fittings

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

15,538 products

Tube Fitting Clamps

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

145 products

Tube Fitting Nuts

Tighten to create a strong seal between tube and tube fittings

18 products

Tube End Caps

Cover the ends of tube to keep out dirt and debris

61 products

Tube End Plugs

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

10 products

Tube Fitting Sleeves

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

15 products

Tubing

Typically more flexible than pipe for carrying liquids and gases in short runs around equipment

30 products

Hose and Hose Fittings

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

587 products

Pipe Repair Clamps

Fix small holes and cracks in pipe without taking your system apart

244 products

Tube Repair Clamps

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

18 products

Manifolds

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

313 products

Junction Blocks

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

88 products

On-Off Valves

Start and stop flow through a line

483 products

Drain Valves

Vent air or discharge liquids to remove excess fluid from your system

11 products

Flow-Adjustment Valves

Gradually open and close to control the volume of air and liquids through a line

67 products

Float Valve Bodies

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

61 products

Strainer Screens

Replace the screen in your strainer

4 products

Strainers

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

23 products

Fastening and Joining

Standoffs

Threaded to separate or connect parts as well as position components in assemblies

15 products

Joint Clamps for Wood

Make secure joints between boards, butcher blocks, and countertops

3 products

Thread Adapters

Join threads of a different type, size, and gender

3,611 products

Wood Joiners

Connect and repair wood pieces and joints

9 products

Weld Nuts

Weld to metal surfaces to add permanent threads

12 products

Sockets

Turn fasteners with an external drive style without slipping and damaging the drive

159 products

Socket Adapters

Make your socket more versatile, from converting the drive to limiting torque

29 products

Ratchet Wrenches

Adjust fasteners in tight spaces without removing and repositioning the wrench

3 products

Socket Extensions

Lengthen sockets to turn hard-to-reach fasteners

6 products

Bit Sockets

Turn fasteners with an internal drive style without slipping and damaging the drive

12 products

Brazing Rings

Snap into metal pipe and tubing to form leak-resistant joints more quickly than with hand-fed alloys

5 products

Material Handling

Hitch Balls

Mount to hitch inserts and use with hitch receivers and couplers to tow trailers

9 products

Hitch Pins

Secure hitch inserts to hitch receivers for towing

12 products

Hitch-Ball Couplers

Bolt or weld to trailers and connect to hitch balls on vehicles for towing

10 products

Hitch Inserts

Fit into hitch receivers and secure with a hitch pin to create a connection for towing

32 products

Hitch-Ball Coupler Locks

Insert into the hitch-ball coupler latch or socket on your trailer to prevent theft

4 products

Hitch Receivers

Use with hitch inserts and pins to create a complete hitch for towing

2 products

Hitch Kits

Everything you need to attach a hitch to your vehicle’s receiver

2 products

Screw Jack End Fittings

Thread onto screw jacks to create pivot points with clevis rod ends and other linkages

4 products

Tow Hooks

Bolt to vehicles and connect to tow eyes on trailers for towing

9 products

Cranes

Raise and move heavy or bulky objects overhead

1 product

Tow Eyes

Mount to trailers and connect to tow hooks or drawbar couplers on vehicles for towing

14 products

Drawbar Couplers

Use with drawbar rings to connect trailers to vehicles; also known as pintle hitches

17 products

Kingpins

Bolt or weld to a semi-trailer to connect it to your tractor

6 products

Vacuum Cup Swivels

Rotate and flex so your vacuum cups can grip items at an angle

2 products

Forklift Hitch Receivers

Secure to forklift forks and slide in a hitch to adapt a forklift for towing

1 product

Conveyor Track Brackets

Hang and join sections of enclosed conveyor track

1 product

Conveyor Guide Mounting Rods

Secure guides and other attachments to conveyors

8 products

Conveyors

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

12 products

Scaffold Clamps

Construct scaffolding and secure supports, such as railings

2 products

Lubricating

Coolant Dispenser Hose and Fittings

Snap together and position to deliver coolant, oil, water, or air in any direction

90 products

Coolant Hose and Nozzle Adapters

Connect threaded coolant hose and nozzles to coolant supply ports on equipment such as CNC machines

4 products

Electrical

Conduit Bodies

Access wiring to pull, splice, or redirect it

83 products

Conduit Box Connectors

Attach conduit to a knockout in electrical boxes

186 products

Conduit-to-Conduit Connectors

Join pieces of conduit

12 products

Conduit

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

45 products

Weatherheads

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

10 products

Electrical Enclosure Panel Mounts

Add a secondary panel that swings to mount more components in your enclosure

2 products

Safety Switches

Protect people by cutting power to machines when access doors open; also known as interlock switches

10 products

Heating, Ventilation, and Air Conditioning

Duct and Fittings

Circulate air through HVAC systems using round, rectangular, and fabric duct

1,810 products

Diffuser Collars

Connect diffusers to duct

4 products

Duct Damper Handles

Replace an existing handle or pair with a blade to create your own damper

1 product

Duct Downdraft Diverters

Prevent downdrafts from blowing back into ductwork while allowing air and fumes to vent

8 products

Duct Floor Sweeps

Get dust and debris off your floor and into your collection system

3 products

Duct Blast Gates

Slide open and closed to control flow of air and material

150 products

Duct Airflow Dampers

Regulate airflow to sections of duct

99 products

Duct Turning Vanes

Guide air smoothly around sharp bends in rectangular duct

4 products

Chimney Pipe and Fittings

Exhaust hot air and fumes from boilers, furnaces, and stoves

16 products

Barometric Draft Dampers

Maintain consistent airflow in your furnace to improve its performance

6 products

Diffuser Dampers

Regulate the airflow coming out of drop-ceiling diffusers

10 products

Duct Fire Dampers

Automatically close at high temperatures to help prevent the spread of fire through duct

13 products

Fabricating and Machining

Drill Bushings

Fit in holes to guide drill bits and other cutting tools for precise and repeatable holes and cuts

3,260 products

Drill Bushing Sleeves

Press into your jig fixture so you can swap different bushings in and out without causing wear

15 products

Die Bushings

Guide pins and punches in molds and stamping dies or reduce friction between ejector pins and plates

102 products

Drywall Knives

Smoothly spread drywall compounds and also scrape off paint and debris

11 products

Files

Deburr, polish, and sharpen nearly any material, such as metal, plastic, ceramic, and wood

3 products

Containers, Storage, and Furniture

Table Leg Hinges

Add legs and mount to tabletops to create folding tables

4 products

Shelf Brackets

Mount and support shelves

3 products

Safety Equipment

Elbow Pads

Cushion elbows from bumps and scratches

1 product

Elbow Supports

Minimize elbow strain

1 product

Fall-Arrest Harness Pads

Stay comfortable for long periods by preventing your harness from digging in and chafing

2 products

Measuring and Inspecting

Micrometer Head Mounting Brackets

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

16 products

Pipe Size Measuring Kits

Connect to pipe and fittings to determine their size without additional measuring tools

4 products

Facility and Grounds Maintenance

Brick Jointers

Rub along the mortar between bricks for a uniform, finished appearance

1 product

Chain Link Fencing

Everything you need to build or repair a chain link fence, from posts to gates

6 products

Raw Materials

Steel

Strong, machinable, and weldable—all with material certificates for traceability

4 products