Joint Connectors | McMaster-Carr

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DFARS Specialty Metals

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21,875 Products

Fluid Handling

Tube Fittings

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

16,468 products

Hose Fittings

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

786 products

Hose Nozzle Swivels

Rotate to prevent hose from kinking, twisting, and wearing

24 products

Pipe and Fittings

Generally thicker and more rigid than tubing for distributing liquids and gases

626 products

Pipe Expansion Joints

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

197 products

Rotary Joints

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

102 products

Manual On-Off Valves

Start and stop flow through a line

4 products

Float Valve Bodies

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

77 products

Fastening and Joining

Joint Clamps for Wood

Make secure joints between boards, butcher blocks, and countertops

3 products

Studs

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

82 products

Dowel Screws

Screw into holes to join two pieces of wood

13 products

Binding Barrels

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

100 products

Dowel Nuts

Form joints in blind holes in wood

11 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

34 products

Socket Extensions

Lengthen sockets to turn hard-to-reach fasteners

27 products

Bit Sockets

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

12 products

Building and Machinery Hardware

Strut Channel Framing and Fittings

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

394 products

T-Slotted Framing and Fittings

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

554 products

Slip-On Framing Connectors

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

245 products

Connectors for Telescoping Tubes

Lock tubes in place to create adjustable structures, such as folding stands and extension poles

15 products

Flush-Fit Framing Connectors

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

7 products

Clamp-On Framing and Fittings

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

182 products

Locking-Slotted Framing Brackets

Connect locking-slotted rails and reinforce joints to build strong platforms and machine bases

6 products

Bolt-Together Framing and Fittings

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

93 products

Press-Fit Framing and Fittings

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

31 products

Weld-Together Framing Connectors

Create permanent joints between weld-together rails to build heavy duty racks, shelving, and tables

6 products

Joint Covers

Shield rotating joints to keep lubricants in and contaminants out

25 products

Lubricating

Grease Fitting Adapters

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

2 products

Power Transmission

U-Joints

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

181 products

Rod Ends

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

694 products

Swivel Joints

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

136 products

Pivot Bearings

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

20 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 Receivers

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

2 products

Tow Eyes

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

14 products

Hitch-Ball Couplers

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

11 products

Tow Hooks

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

9 products

Forklift Hitch Receivers

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

2 products

Drawbar Couplers

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

17 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

Scaffold Clamps

Construct scaffolding and secure supports, such as railings

2 products

Kingpins

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

6 products

Hitch Kits

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

2 products

Heating, Ventilation, and Air Conditioning

Duct Elbows

Change the direction of airflow when joining lengths of duct

15 products

Safety Equipment

Safety Railing Connectors

Build custom safety rail structures with tees, elbows, crosses, and more

10 products