Color Codings | McMaster-Carr

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Black/Fluorescent Green

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DFARS Specialty Metals

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Export Control Classification Number (ECCN)

Performance

Electrical Insulating

Mount Type

Hole Diameter

Maximum Temperature

Minimum Temperature

For Pipe OD

Message Type

Calibration and Inspection

Shaft Diameter

Form

Keying

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Help me decide (beta)

3,214 Products

Communication

Hose Identification Bands

Color code hose and tube lines to identify them at a glance

2 products

Labels

Stick onto items to identify or convey information about them

77 products

Pipe Marker Tape

Secure peeling edges of adhesive pipe markers

10 products

Tags

Hang throughout facilities to convey information

99 products

Pipe Markers

Identify pipe contents and flow in a range of environments

905 products

Bottle Tags

Slip onto bottles to color code their contents

3 products

Marking Tape

Stick to floors and pavement to outline equipment, make parking spaces, and identify safety zones

120 products

Marking Cones

Mark materials on pallets or the floor to streamline staging and inventory control

5 products

Floor Decals

Stick to the floor to give instructions or direct traffic in and around your facility

18 products

Material Handling

Cable Ties

Bundle and secure cable, wire, and hose; also known as zip ties

127 products

Twist Ties

Wind the ends to bundle cable and wire or close bags and sacks

22 products

Hook and Loop Straps

Pull apart and secure again and again as the size of your bundle changes

123 products

Strap Handles

Wrap around bundles and hard-to-grip objects for a more convenient carry

6 products

Lubricating

Grease Gun Bands

Color code grease guns so the correct type of lubrication is used

1 product

Grease Fitting Caps

Protect grease fittings from dirt, debris, and moisture

14 products

Fastening and Joining

L-Keys

Turn fasteners from either end and reach into tight spots

46 products

Shims

Align and space components on shafts, or level machinery, cabinets, and doors

268 products

Shim Stock

Cut into custom shapes to align, space, and level components on dies, presses, and machinery

140 products

Fluid Handling

Tube Fittings

Make threaded, push to connect, barbed, and other types of connections between lengths of tube

23 products

Tubing

Typically more flexible than pipe for carrying liquids and gases in short runs around equipment

120 products

Building and Machinery Hardware

Padlocks

Shackle objects together, such as a door and its frame, to prevent theft or unauthorized entry

387 products

Keyhead Covers

Color-code your keys for easy identification

2 products

Facility and Grounds Maintenance

Scrub Brushes

Everyday scrub brushes, scrub brushes with a handle, and drill-operated scrub brushes

35 products

Sponges

Mildew-resistant, super-absorbent, natural, eraser, and scouring sponges

3 products

Measuring and Inspecting

Feeler Gauges

Check gaps and alignment between machine parts and other surfaces

28 products

Fabricating and Machining

Tweezers

Grasp small objects that are too small to pick up by hand

11 products

Tube Brushes

Remove contaminants from tubes, pipes, and holes

5 products

Electrical Power, Networking, and Controlling

Electrical Tape

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

197 products

Power Transmission

Die Springs

Support heavy loads with minimal compression in high-impact jobs such as punching and stamping

416 products