Electrical Insulators | McMaster-Carr

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Electrically Insulating

Heavy Vibration Resistant

Interference Shielding

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Acetic Acid (White Vinegar)

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10,938 Products

Raw Materials

Garolite

A strong, machinable alternative to metal and plastic widely used in circuit boards and gears

1,592 products

Plastic

A lightweight alternative to metal and glass

7,795 products

Fiberglass

A lightweight alternative to metal and wood widely used in electrical and structural applications

184 products

Aramid

Strong, lightweight, and an excellent thermal insulator; also known as Nomex

7 products

Hard Fiber

Chemically treated to be hard and dense, this is the easiest composite to machine in our offering

35 products

Ceramic

Hard and wear resistant, it also withstands corrosion and high temperatures

16 products

Fastening and Joining

Insulating Washers

Isolate screws from electrical current and prevent corrosion from mating different metals

277 products

Washers

Nearly every size and shape imaginable, from flat washers to clipped to curved

466 products

Sockets

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

11 products

Socket Adapters

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

4 products

Ratchet Wrenches

Adjust fasteners in tight spaces without removing and repositioning the wrench

2 products

Torque Wrenches

Avoid overtightening and damaging fasteners by applying a specific torque

4 products

Box Wrenches

Grip all sides of a fastener to prevent slipping

6 products

Socket Extensions

Lengthen sockets to turn hard-to-reach fasteners

4 products

Adjustable Wrenches

Adjust the jaws to fasten different size nuts, bolts, or workpiece

6 products

Bit Sockets

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

8 products

Screwdrivers

Tighten and loosen screws

74 products

T-Handle Keys

To turn fasteners in hard-to-reach spots, there's a long shaft and a grip for your whole hand

16 products

Screw Starters

Grip and start turning screws that are too small to hold or located in hard-to-reach spots

4 products

Nutdrivers

Tighten and loosen nuts and bolts

16 products

Retaining Ring Pliers

Install and remove rings inside a bore or around a shaft

1 product

Tape

Bind, seal, and mark surfaces

226 products

Electrical

Wire Sleeving

Bundle wiring and protect from abrasion and heat

63 products

Electrical-Insulating Wire Caps

Cover live wire ends to protect against shock from accidental contact

3 products

Heat-Shrink Tubing

Apply heat to seal and insulate electrical wiring and connections

11 products

Wire and Cable Strippers

Remove the outer insulation on wire and cable

2 products

Thermal Interface Material

Dissipate heat away from electronic components

6 products

Lubricating

Grease

Thicker than oil to evenly lubricate surfaces and stay in place

29 products

Facility and Grounds Maintenance

Tool Sets

Secure fasteners and complete a variety of other maintenance tasks

1 product

Fabricating and Machining

Pipe, Tube, and Hose Cutters

Make clean cuts in pipe, tube, hose, and conduit

1 product

Scissors

Cut through a wide range of materials from paper and plastic to carpet and Kevlar

1 product

Cable Cutters

Slice through electrical, data, armored, coaxial, and fiber-optic cable

1 product

End Cutters

Wide jaws cut steel wire, nails, and small rivets close to the surface; also known as nippers

1 product

Bolt Cutters

Snip metal chain, bolts, rods, rivets, wire, and padlocks

1 product

Wire Rope Cutters

Slice through metal wire rope, leaving the rest intact

1 product

Picks

Hold, separate, and position small parts such as wire and springs

5 products

Long-Nose Pliers

Grab, bend, and position wire and other small parts

8 products

Plier Sets

A variety of pliers styles and sizes for whatever job comes up

2 products

Slip-Joint Pliers

Adjust the pivot point to switch between two different jaw opening sizes

2 products

Wire-Gripping Pliers

Pull, bend, and cut wire; also known as lineman's pliers

6 products

Adjustable Pliers

A range of jaw positions for turning fasteners and gripping workpieces

7 products

Wire-Forming Pliers

Loop and bend wire; also known as round-nose pliers

1 product

Files

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

1 product

Pry Bars

Slide under heavy objects to pry, lift, and position them

1 product

Awls

Punch through soft materials and scribe lines in metal and wood

1 product

Hacksaws

Blades have more teeth per inch than handsaws to cut through metal and plastic more smoothly

1 product

Measuring and Inspecting

Inspection Mirrors

Reach around corners and obstructions to inspect hard-to-see areas

1 product

Power Transmission

Ball Bearings

Create less friction than other bearings for use at high speeds

27 products