Electrical Insulators | McMaster-Carr

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Electrically Insulating

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DFARS Specialty Metals

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U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

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1,648 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

459 products

Standoffs

Separate, position, or connect components in assemblies

46 products

Spacers

Unthreaded to create space between two surfaces or objects, often to align them

96 products

Screwdrivers

Tighten and loosen screws

69 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

Torque Screwdrivers

Apply precise torque as you fasten screws to prevent overtightening

2 products

Adjustable Wrenches

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

6 products

Box Wrenches

Grip all sides of a fastener to prevent slipping

6 products

Ratchet Wrenches

Adjust fasteners in tight spaces without removing and repositioning the wrench

2 products

Socket Extensions

Lengthen sockets to turn hard-to-reach fasteners

4 products

Sockets

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

11 products

Bit Sockets

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

9 products

Socket Adapters

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

4 products

Torque Wrenches

Avoid overtightening and damaging fasteners by applying a specific torque

5 products

Retaining Ring Pliers

Install and remove rings inside a bore or around a shaft

1 product

Mounting Tape

Mount everything from signs and panels to carpet and padding

21 products

Masking Tape

Temporarily join or protect surfaces

86 products

Electrical Power, Networking, and Controlling

Wire Sleeving

Bundle wiring and protect from abrasion and heat

66 products

Electrical Tape

Insulate wire and cable splices, wrap wire harnesses, and repair cable jacketing

96 products

Heat-Shrink Tubing

Apply heat to seal and insulate electrical wiring and connections

11 products

Electrical-Insulating Wire Caps

Cover live wire ends to protect against shock from accidental contact

3 products

Thermal Interface Tape

Made of polyimide to isolate electricity while the silicone rubber conducts heat

6 products

Wire and Cable Strippers

Remove the outer insulation on wire and cable

2 products

Conductive Tape

Shield cables and electronic components from electromagnetic interference (EMI)

13 products

Raw Materials

Aramid

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

7 products

Ceramic

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

16 products

Mica

An electrical insulator that resists high temperatures; use in circuit breakers and heating elements

191 products

Fabricating and Machining

Scissors

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

1 product

Pipe, Tube, and Hose Cutters

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

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

2 products

Wire-Gripping Pliers

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

6 products

Pliers Sets

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

2 products

Picks

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

5 products

Wire-Forming Pliers

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

1 product

Slip-Joint Pliers

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

2 products

Adjustable Pliers

A range of jaw positions for turning fasteners and gripping workpieces

7 products

Long-Nose Pliers

Grab, bend, and position wire and other small parts

8 products

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

Files

Debur, polish, and sharpen nearly any material

1 product

Hacksaws

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

1 product

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

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