Electrical Isolators | McMaster-Carr

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Abrasion Resistant

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Less than 200° F

200° F to 249° F

250° F to 499° F

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1,000° F or greater

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For Use With

Screws and Nuts

Acetic Acid (White Vinegar)

Ethylene Glycol

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Delrin® Acetal Resin

For Use Outdoors

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DFARS Specialty Metals

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Minimum Temperature

-250° F or less

-249° F to -100° F

-99° F to -50° F

-49° F to -1° F

Greater than 0° F

Dielectric Strength

200 V/mil to 400 V/mil

200 V/mil to 500 V/mil

200 V/mil to 600 V/mil

275 V/mil to 350 V/mil

300 V/mil to 400 V/mil

300 V/mil to 475 V/mil

320 V/mil to 450 V/mil

350 V/mil to 400 V/mil

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11,441 Products

Fastening and Joining

Insulating Washers

Insulating Washers

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

Tape

Bind, seal, and mark surfaces

Nutdrivers

Tighten and loosen nuts and bolts

Sockets

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

T-Handle Keys

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

Ratchet Wrenches

Ratchet Wrenches

Adjust fasteners in tight spaces without removing and repositioning the wrench

Retaining Ring Pliers

Retaining Ring Pliers

Install and remove rings inside a bore or around a shaft

Screwdrivers

Tighten and loosen screws

Socket Adapters

Socket Adapters

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

Box Wrenches

Grip all sides of a fastener to prevent slipping

Screw Starters

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

Torque Wrenches

Torque Wrenches

Avoid overtightening and damaging fasteners by applying a specific torque

Socket Extensions

Socket Extensions

Lengthen sockets to turn hard-to-reach fasteners

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

Raw Materials

Plastic

A lightweight alternative to metal and glass

Garolite

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

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

Electrical

Heat-Shrink Tubing

Heat-Shrink Tubing

Apply heat to seal and insulate electrical wiring and connections

Heat-Shrink Tubing End Caps

Heat-Shrink Tubing End Caps

Seal moisture out of crimped electrical connections

Wire Sleeving

Bundle wiring and protect from abrasion and heat

Electrical Insulating Varnish

Electrical Insulating Varnish

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

Heat-Shrink Tubing Splitters

Heat-Shrink Tubing Splitters

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

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

Cold-Shrink Tubing

Cold-Shrink Tubing

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

Electrical-Insulating Wire Caps

Electrical-Insulating Wire Caps

Cover live wire ends to protect against shock from accidental contact

Cold-Shrink Tubing End Caps

Cold-Shrink Tubing End Caps

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

Terminal Covers

Terminal Covers

Block out dirt and corrosion to protect battery terminals

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

Electrical Cable Repair Resins

Electrical Cable Repair Resins

Protect and insulate electrical cables and repair damaged insulation

Fabricating and Machining

Picks

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

Cable Cutters

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

Wire Cutters

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

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

Bolt Cutters

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

Pipe, Tube, and Hose Cutters

Pipe, Tube, and Hose Cutters

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

Pliers Sets

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

Slip-Joint Pliers

Slip-Joint Pliers

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

Wire-Gripping Pliers

Wire-Gripping Pliers

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

Adjustable Pliers

Adjustable Pliers

A range of jaw positions for turning fasteners and gripping workpieces

Long-Nose Pliers

Long-Nose Pliers

Grab, bend, and position wire and other small parts

Wire-Forming Pliers

Wire-Forming Pliers

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

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

Hacksaws

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

Pry Bars

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

Safety Equipment

Electrical Protection Blankets

Electrical Protection Blankets

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

Fluid Handling

Thermocouple Insulating Sleeves

Thermocouple Insulating Sleeves

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

Measuring and Inspecting

Inspection Mirrors

Inspection Mirrors

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

Lubricating

Grease

Thicker than oil to evenly lubricate surfaces and stay in place

Power Transmission

Shaft Couplings

Shaft Couplings

Connect two shafts to transfer rotary motion from one to the other

Ball Bearings

Create less friction than other bearings for use at high speeds

Facility and Grounds Maintenance

Tool Sets

Secure fasteners and complete a variety of other maintenance tasks

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