Electrical Fittings | McMaster-Carr

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Fiberglass-Reinforced Polymer Concrete

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Adjustable-Angle Elbow

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Fluorescent Green/Red

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1" Circular Connector

6-Pin Mini DIN

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C-UL Recognized Component

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16,678 Products

Electrical

Conduit and Conduit Fittings

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

1,349 products

Cord Grips

Securely connect cords to enclosures while sealing out dirt and moisture

1,189 products

Electrical Enclosure Plugs

Block or seal holes in outlet boxes and enclosures to keep out debris, dust, and moisture

77 products

Electrical Enclosures

House and protect power supplies, control panels, and other electrical equipment

2,212 products

Electrical Enclosure Pole Mounts

Everything you need to secure enclosures to round poles or beams

14 products

Electrical Enclosure Covers

Replace Fibox enclosure covers

98 products

Electrical Enclosure Mounting Channels

Position components inside electrical enclosures without drilling holes, which can leak

9 products

Electrical Enclosure Floor Stands

Mount enclosures to the floor above hazards such as water

8 products

Outlet Box Covers

Enclose wiring for outlets and switches or block off unused components

86 products

Outlet Boxes

House electrical components such as on-off switches, receptacles, and dimmer knobs

210 products

Outlet Box Extenders

Add depth to an outlet box when there’s not enough space for components

50 products

Fish Tape

Hook to the end of wire and move it through conduit and raceway

13 products

Fish Tape Leaders

Join fish tape to wire for guiding it around conduit bends

1 product

Fish Tape Pullers

Latch onto fish tape or rope for a secure, two-hand grip when pulling wire

1 product

Cable Entry Panels

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

120 products

Raceway and Raceway Fittings

Route and guard wiring along indoor surfaces

157 products

Weatherheads

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

10 products

Potting Boxes

Fill with potting compound to protect electronic assemblies from dust, moisture, and vibration

16 products

Single-Board Computer Enclosures

Protect your Raspberry Pi, Arduino, or other board from dust and impact

6 products

Cable Pulling Grips

Tug on the loop to tighten wire mesh around cable and pull it through conduit

14 products

Cable Support Grips

Reduce tension and vibration that damage hanging cable; also known as bus drop grips

74 products

Heat-Shrink Tubing

Apply heat to seal and insulate electrical wiring and connections

3 products

Electronics Racks

Mount servers, automation controls, and computers in less space than electronics cabinets

9 products

Electronics Cabinets

Store and organize servers, computers, and automation controls

15 products

Wire and Cable Push-Pull Rods

Maneuver cable inside drop ceilings and walls

4 products

Interference Suppressing Clips

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

64 products

Underground Enclosures

Bury in the ground or in concrete to protect and access utilities such as electric and water lines

4 products

Circuit Board Enclosures

Hold circuit boards to protect them from dust, liquids, or overheating

76 products

Terminals, Ferrules, and Lugs

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

1,269 products

Wire Splices

Connect wires end to end to extend or repair a run

176 products

Wire Tap/Connectors

Tap and splice multiple wires together at the same time

70 products

Wire Taps

Connect a tap wire to a main wire without stripping

24 products

Wire Connectors

Join two or more wires for a secure connection

101 products

Wire Splice Covers

Seal out dust and moisture to protect electrical connectors

3 products

Electrical Plugs

Pair with sockets or receptacles to transmit power or data

1,074 products

Electrical Receptacles

Install in a wall or panel to transmit power or data to plugs or sockets

1,017 products

Electrical Sockets

Pair with plugs or receptacles to transmit power or data

664 products

Electrical Adapters

Change electrical connectors to another type, size, or gender

292 products

Terminal and Splice Kits

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

17 products

Electrical Cords

Connect equipment and devices to a power supply

2,391 products

Terminal Blocks

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

699 products

Electrical Connector Caps

Protect data connectors when not in use

78 products

Electrical Connector Thread Adapters

Join two connectors that both have internal threads

6 products

Electrical Cable Hardware Kits

Hang equipment from drop-down cable

1 product

Electrical Connector Boots

Protect connectors and cords from strain, bends, and pulls

2 products

Jumper Cables

Jump-start a dead battery

12 products

Terminal Adapters

Convert wire terminals from one connection type or gender to another

7 products

Terminal Splitters

Divide one male quick-disconnect connection into two

4 products

Electrical Connector Contacts

Crimp wire into pins and sleeves to create custom Molex or Amphenol connectors

13 products

Circuit Board Terminals

Connect wire to circuit boards

9 products

Data Port Locks

Block USB or Ethernet ports from unauthorized use

9 products

Data Port Plugs

Keep dust, debris, and moisture out of unused computer ports

3 products

Grounding Lugs

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

1 product

Grounding Rings

Create a pathway for stray currents to prevent damage to bearing surfaces in AC motors

20 products

Circuit Board Voltage Regulators

Power circuits from a high-voltage source without frying your system

15 products

Circuit Breaker Box Filler Plates

Conceal live electrical components in circuit breaker boxes to prevent injury and damage

2 products

Battery Terminal Adapters

Convert one battery terminal style to another

6 products

Battery Terminal Fasteners

Replace bolts in battery terminals

3 products

Battery Terminals

Connect cable to battery posts to power vehicles and machines

131 products

Manual Switches

Everything from toggle, push-button, and rocker switches to foot switches

2 products

Light Switch/Receptacles

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

2 products

Building and Machinery Hardware

Grommets

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

941 products

Protective Plugs

Insert into holes in pipe, containers, panels, and parts to keep out debris

248 products

Vibration-Damping Mounts

Attach to machinery to reduce vibration and noise and extend service life

93 products

Strut Channel Framing and Fittings

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

7 products

Material Handling

Routing Clamps

Secure routed lines of pipe, tubing, and conduit

1,139 products

Cable Pulling Clamps

Maintain tension until a line can be permanently anchored

11 products

Fastening and Joining

Welding Lugs

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

13 products

Snap-In Nuts

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

2 products

Containers, Storage, and Furniture

Shelves

Use with frames to support and store a variety of items

6 products

Measuring and Inspecting

Load Cell Junction Boxes

Join multiple load cells to combine their weight measurements

2 products

Fluid Handling

Thermocouple Connectors

Join thermocouple probes and wire to thermometers and control panels

4 products