Electrical Insulation | McMaster-Carr

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11,904 Products

Raw Materials

Garolite

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

Plastic

A lightweight alternative to metal and glass

Fiberglass

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

Hard Fiber

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

Fastening and Joining

Insulating Washers

Insulating Washers

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

Box Wrenches

Grip all sides of a fastener to prevent slipping

Socket Extensions

Socket Extensions

Lengthen sockets to turn hard-to-reach fasteners

Ratchet Wrenches

Ratchet Wrenches

Adjust fasteners in tight spaces without removing and repositioning the wrench

Socket Adapters

Socket Adapters

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

Adjustable Wrenches

Adjustable Wrenches

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

Bit Sockets

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

Sockets

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

Torque Wrenches

Torque Wrenches

Avoid overtightening and damaging fasteners by applying a specific torque

Fastening Tool Kits

Fastening Tool Kits

Secure fasteners and complete a variety of other maintenance tasks

Screwdrivers

Tighten and loosen screws

Nutdrivers

Tighten and loosen nuts and bolts

T-Handle Keys

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

Screw Starters

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

Tape

Bind, seal, and mark surfaces

Electrical

Wire Sleeving

Bundle wiring and protect from abrasion and heat

Heat-Shrink Tubing

Heat-Shrink Tubing

Apply heat to seal and insulate electrical wiring and connections

Electrical Insulating Varnish

Electrical Insulating Varnish

Coat wire and other metal electrical parts to protect them from oil, chemicals, and moisture

Heat-Shrink Tubing End Caps

Heat-Shrink Tubing End Caps

Seal moisture out of crimped electrical connections

Electrical-Insulating Wire Caps

Electrical-Insulating Wire Caps

Cover live wire ends to protect against shock from accidental contact

Heat-Shrink Tubing Seal Wrap

Heat-Shrink Tubing Seal Wrap

Wrap around wire like tape to create a moisture resistant seal before adding heat-shrink tubing

Heat-Shrink Tubing Splitters

Heat-Shrink Tubing Splitters

Insulate and seal where wire splits off from cable; also known as breakout boots

Cold-Shrink Tubing

Cold-Shrink Tubing

Conforms to wire and cable without heat, creating a permanent, watertight seal

Cold-Shrink Tubing End Caps

Cold-Shrink Tubing End Caps

Seal crimped electrical connections without heat or tools to protect against moisture

Terminal Blocks

Terminal Blocks

Mate with terminals to complete circuits in control panels, motors, and small machines

Terminal Covers

Terminal Covers

Block out dirt and corrosion to protect battery terminals

Electrical Cable Repair Resins

Electrical Cable Repair Resins

Protect and insulate electrical cables and repair damaged insulation

Wire and Cable Strippers

Wire and Cable Strippers

Remove the outer insulation on wire and cable

Thermal Interface Material

Thermal Interface Material

Dissipate heat away from electronic components

Grounding Rings

Grounding Rings

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

Capacitor Boots

Capacitor Boots

Shield capacitors and wire connections to extend their service life and reduce accidental shocks

Fabricating and Machining

Pliers

Grip, bend, and twist wire and other small workpieces

Picks

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

Retaining Ring Pliers

Retaining Ring Pliers

Install and remove rings inside a bore or around a shaft

Cable Cutters

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

Scissors

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

End Cutters

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

Pipe, Tube, and Hose Cutters

Pipe, Tube, and Hose Cutters

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

Wire Cutters

Snip through various types of wire, even hardened and steel-reinforced wire

Wire Rope Cutters

Wire Rope Cutters

Slice through metal wire rope, leaving the rest intact

Bolt Cutters

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

Files

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

Awls

Punch through soft materials and scribe lines in metal and wood

Pry Bars

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

Hacksaws

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

Safety Equipment

Electrical Protection Blankets

Electrical Protection Blankets

Wrap around power lines and electrical equipment to shield workers from high voltage

Lubricating

Grease

Thicker than oil to evenly lubricate surfaces and stay in place

Heating, Ventilation, and Air Conditioning

Thermal Insulation Sheets

Thermal Insulation Sheets

Line the walls of furnaces, freezers, ductwork, and buildings to keep heat in or out

Pipe Insulation

Pipe Insulation

Fit around pipe, tubing, and tanks to reduce heat loss or condensation

Fluid Handling

Thermocouple Insulating Sleeves

Thermocouple Insulating Sleeves

Protect thermocouple wire in extreme-temperature applications, such as die casting and heat treating

Building and Machinery Hardware

Edge Trim

Install on panels, boards, signs, and mirrors to protect edges from impact

Measuring and Inspecting

Caliper Battery Covers

Caliper Battery Covers

Protect the battery inside your caliper

Inspection Mirrors

Inspection Mirrors

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

Power Transmission

Ball Bearings

Create less friction than other bearings for use at high speeds

Material Handling

Conveyor Brushes

Conveyor Brushes

Position items on conveyor belts and wipe off debris

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)