Mechanical Joints | McMaster-Carr

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34,281 Products

Fluid Handling

Pipe and Pipe Fittings

Pipe and Pipe Fittings

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

21,520 products

Pipe Repair Clamps

Pipe Repair Clamps

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

Tube Repair Clamps

Tube Repair Clamps

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

Tube and Tube Fittings

Tube and Tube Fittings

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

Hose and Hose Fittings

Hose and Hose Fittings

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

On-Off Valves

Start and stop flow through a line

Flow-Adjustment Valves

Flow-Adjustment Valves

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

Power Transmission

U-Joints

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

Shear Couplings

Shear Couplings

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

Shaft Adapters

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

Flexible Shafts

Flexible Shafts

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

Shaft Couplings

Shaft Couplings

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

Machinable Shaft Ends

Machinable Shaft Ends

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

Bore Reducers

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

Rod Ends

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

Rod End Nuts

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

Swivel Joints

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

Gas Spring End Fittings

Gas Spring End Fittings

Connect gas springs to mounting studs and brackets

Bearing Adapter Sleeves

Bearing Adapter Sleeves

Close gaps between your bearing and shaft for a tight fit

Torque Limiters

Torque Limiters

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

Air Flow Control Valves

Air Flow Control Valves

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

Pivot Bearings

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

Building and Machinery Hardware

Prop Rods

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

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 Connectors

Clamp-On Framing Connectors

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

Clamp-On Framing Conveyor Brackets

Clamp-On Framing Conveyor Brackets

Mount conveyor rails to clamp-on framing structures

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 Monitor Mounts

Clamp-On Framing Monitor Mounts

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

Clamp-On Framing Feet

Clamp-On Framing Feet

Level clamp-on framing structures and anchor them to the floor

Clamp-On Framing Rail Supports

Clamp-On Framing Rail Supports

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

Clamp-On Framing Braces

Clamp-On Framing Braces

Add support to corner connections in your clamp-on framing structure

Lid Supports

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

T-Slotted Framing and Fittings

T-Slotted Framing and Fittings

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

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

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 and Fittings

Flush-Fit Framing and Fittings

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

Press-Fit Framing and Fittings

Press-Fit Framing and Fittings

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

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

Door Installation Kits

Door Installation Kits

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

Brackets

Connect surfaces in an assembly

Positioning Arms

Positioning Arms

Mount and position tools, small electronics, and displays

Control Cables

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

Hasps

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

Padlockable Eyes

Padlockable Eyes

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

Hinges

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

Positioning Arm Mounts

Positioning Arm Mounts

Add a mounting surface to positioning arms

Door Tracks

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

Hasp Strike Plates

Hasp Strike Plates

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

Lubricating

Coolant Hose and Nozzle Adapters

Coolant Hose and Nozzle Adapters

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

Coolant Dispenser Hose and Fittings

Coolant Dispenser Hose and Fittings

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

Fastening and Joining

Joint Clamps for Wood

Joint Clamps for Wood

Make secure joints between boards, butcher blocks, and countertops

Weld Nuts

Weld to metal surfaces to add permanent threads

Sockets

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

Socket Adapters

Socket Adapters

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

Wood Joiners

Connect and repair wood pieces and joints

Electrical

Weatherheads

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

Safety Switches

Safety Switches

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

Conduit and Conduit Fittings

Conduit and Conduit Fittings

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

Material Handling

Hitch Balls

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

Hitch Receivers

Hitch Receivers

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

Tow Eyes

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

Hitch-Ball Couplers

Hitch-Ball Couplers

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

Tow Hooks

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

Conveyor Track Brackets

Conveyor Track Brackets

Hang and join sections of enclosed conveyor track

Drawbar Couplers

Drawbar Couplers

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

Vacuum Cup Swivels

Vacuum Cup Swivels

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

Hitch Inserts

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

Screw Jack End Fittings

Screw Jack End Fittings

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

Containers, Storage, and Furniture

Table Leg Hinges

Table Leg Hinges

Add legs and mount to tabletops to create folding tables

Facility and Grounds Maintenance

Chain Link Fencing

Chain Link Fencing

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

Heating, Ventilation, and Air Conditioning

Diffuser Collars

Diffuser Collars

Connect diffusers to duct

Duct and Duct Fittings

Duct and Duct Fittings

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

Chimney Pipe and Fittings

Chimney Pipe and Fittings

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

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