L-Connectors | McMaster-Carr

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8,975 Products

Building and Machinery Hardware

Bolt-Together Framing Structural Brackets

Connect the surfaces and corners of bolt-together rails to build guards, tables, and racks

10 products

Bolt-Together Framing Panel Hangers

Install panels on bolt-together framing rails to create guards and partitions

1 product

Bolt-Together Framing Rails

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

13 products

T-Slotted Framing Structural Brackets

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

93 products

Strut Channel Brackets

Join strut channel surfaces and corners to route conduit and pipe or build other structures

120 products

Press-Fit Framing Connectors

Tap into place with a hammer to join two or more press-fit rails

4 products

Flush-Fit Framing Elbows

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

1 product

Slip-On Framing and Fittings

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

62 products

Clamp-On Framing and Fittings

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

2 products

Brackets

Connect surfaces in an assembly

64 products

Grommets

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

35 products

Fluid Handling

Tube and Tube Fittings

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

3,537 products

Pipe and Fittings

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

1,817 products

Rotary Joints

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

94 products

Hose Fittings

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

402 products

Hose

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

33 products

Hose Nozzle Swivels

Rotate to prevent hose from kinking, twisting, and wearing

3 products

Electrical Power, Networking, and Controlling

Audio Connectors

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

6 products

Latching Connectors

Protect connections in wet or harsh environments while keeping them accessible

55 products

USB Connectors

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

13 products

Solenoid Valve Sockets

Pair with plugs or receptacles to connect solenoid components

11 products

Power Connectors

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

102 products

RJ45 Connectors

Plugs, sockets, and receptacles to make Ethernet connections

3 products

ix Industrial Sockets

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

4 products

Metric Circular Connectors

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

20 products

D-Sub Connectors

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

31 products

Coaxial Plugs

Pair with sockets or receptacles to make coaxial connections

2 products

HDMI Adapters

Convert one HDMI size or style to another

1 product

Terminals

Attach wire endings everywhere from circuit breaker panels to batteries

35 products

Mini Cords

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

38 products

Metric Circular Cords

Send power and signal to equipment with metric connections

105 products

Solenoid Valve Cords

Connect solenoid components, such as valves and motors

43 products

Ethernet Cords

Send data between computers, printers, servers, and switches

9 products

Conduit and Fittings

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

264 products

Cord Grips

Securely connect cords to enclosures while sealing out dirt and moisture

254 products

Cable Entry Panels

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

127 products

Raceway Elbows

Change the direction of a run by adding 90° and 45° turns

43 products

Battery Terminals

Connect cable to battery posts to power vehicles and machines

30 products

EMI/RFI Suppressing Clips

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

64 products

Circuit Board Connectors

Connect flat flexible cable to circuit boards

5 products

Lubricating

Grease Fitting Adapters

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

4 products

Grease Fittings

Create an inlet on equipment and machinery for injecting lubricant; also known as Zerk fittings

53 products

Oil Fittings

Install in engine blocks and other machinery to pour in oil while keeping dust out

7 products

Coolant Hose and Fittings

Build a custom system to deliver coolant, cutting oil, water, or air in any direction

28 products

Measuring and Inspecting

Micrometer Head Mounting Brackets

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

8 products

Facility and Grounds Maintenance

Gutters

Catch rainwater and divert it away from a building to protect its foundation

8 products

Heating, Ventilation, and Air Conditioning

Duct and Fittings

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

202 products