Discs | McMaster-Carr

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Fabrication

27,008 Products

Most Likely Products

Aluminum

Lightweight, easy to machine, and corrosion resistant—all with material certificates for traceability

434 products

Steel

Strong, machinable, and weldable—all with material certificates for traceability

2,717 products

Sanding Discs

Add to sanders, floor buffers, and other tools to smooth out workpieces and remove paint and rust

1,963 products

Plastic

A lightweight alternative to metal and glass

1,360 products

Stainless Steel

Resists corrosion and chemicals in most environments—all with material certificates for traceability

924 products

Washers

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

4,437 products

Glass

Clear and highly heat and chemical resistant; often used in sights, lighting, and lab equipment

142 products

All Results

Raw Materials

Aluminum

Lightweight, easy to machine, and corrosion resistant—all with material certificates for traceability

434 products

Steel

Strong, machinable, and weldable—all with material certificates for traceability

2,717 products

Plastic

A lightweight alternative to metal and glass

1,360 products

Stainless Steel

Resists corrosion and chemicals in most environments—all with material certificates for traceability

924 products

Glass

Clear and highly heat and chemical resistant; often used in sights, lighting, and lab equipment

142 products

Copper

Our most conductive metal for electrical applications—all with material certificates for traceability

148 products

Brass

More machinable than copper and bronze—all with material certificates for traceability

166 products

Ceramic

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

188 products

Lead

A dense insulator often used to shield against radiation and absorb sound and vibration

16 products

Garolite

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

312 products

Foam

Pockets of air make it lighter in weight than rubber; good for packing, insulating, and sealing

83 products

Rubber

Compresses and bounces back to shape; often used for sealing, cushioning, and shock absorbing

313 products

Felt

Thicker and more absorbent than fabric for insulating, polishing, cushioning, and gasketing

33 products

Bronze

Better wear resistance than copper and brass—all with material certificates for traceability

225 products

Titanium

The most corrosion-resistant metal we offer—all with material certificates for traceability

61 products

Tungsten

Our densest metal resists wear and heat to make end mills, heat shields, electrodes, and more

199 products

Carbon Fiber

The strongest composite we offer; comparable in strength to 6061 aluminum but lighter in weight

29 products

Nickel

An upgrade from stainless steel to withstand harsh chemicals and acids—all with material certificates for traceability

84 products

Graphite

Compressible or conductive for making high-temperature seals, furnace parts, and crucibles

34 products

Wood

Commonly used to build ramps, crates, and prototypes or to make repairs

80 products

Molybdenum

Retains its shape and strength in extreme temperatures—all with material certificates for traceability

29 products

Niobium

Conductive and corrosion resistant even at extreme temperatures—all with material certificates for traceability

4 products

Cobalt

Resists impact and rapid temperature changes—all with material certificates for traceability

3 products

Hard Fiber

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

8 products

Fiberglass

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

60 products

Fabricating and Machining

Sanding Discs

Add to sanders, floor buffers, and other tools to smooth out workpieces and remove paint and rust

1,963 products

Sanding Disc Cushioning Pads

Add between your sanding disc and backup pad for a finer finish

4 products

Sanding Disc Adapters

Swap between hook and loop and adhesive-backed sanding discs without also switching the sanding pad

4 products

Backup Pads

Attach discs to power tools and reinforce the discs

118 products

Retaining Nuts for Backup Pads

Thread onto your tool’s arbor to hold a sanding disc against the backup pad

3 products

Sanding Blocks

For better control than powered sanders, sand surfaces manually

14 products

Rotary Sanding Pads

Reach into pipes, tubes, corners, and slots to smooth their surfaces and remove paint and rust

9 products

Grinding Wheels

Add to grinders to remove material from work surfaces using abrasion

633 products

Grinding Wheel Truing Tools

Reshape worn grinding wheels so they'll continue to run straight

8 products

Grinding Wheel Dressers

Clean grinding wheels and expose fresh grains to rejuvenate their cutting ability

104 products

Cutoff Wheels

Install in grinders to cut through metal, concrete, and ceramics

326 products

Grinding Bits

Pair with grinders for light material removal and precision grinding

565 products

Grinder Spindle Adapters

Convert grinder spindles to thread sizes that work with grinding wheels and sanding discs

1 product

Rotary Tool Cutoff Wheels

Replace the cutoff wheel on your Dremel rotary tool

34 products

Rotary Tool Blades

Replace the blade on your Dremel rotary tool

33 products

Rotary Tool Accessory Kits

Complete a wide range of cutting, grinding, and sanding tasks with your rotary tool

10 products

Rotary Tool Buffing and Polishing Kits

Buff, polish, and clean with rotary tools

1 product

Rotary Tool Grinding Bits

Pair with rotary tools to sharpen, debur, and grind metal surfaces

2 products

Buffing and Polishing Pads

Remove imperfections and apply protective coatings on delicate surfaces

38 products

Buffing and Polishing Wheels

Remove surface imperfections to achieve a precise, flat finish

164 products

Buffing and Polishing Wheel Flanges

Connect wheels with a center hub to bench grinders and buffers

4 products

Buffing and Polishing Wheel Cleaning Rakes

Remove dried compound and recondition your wheels

2 products

Buffing Kits

Everything you need to remove scratches and surface imperfections with a buffer or polisher

18 products

Polishing Bonnets

Remove swirl marks and imperfections from a surface after buffing

7 products

Buffing and Polishing Applicator Bonnets

Apply waxes and polishing compounds before buffing and polishing

1 product

Spiral Saw Cutoff Wheels

Attach to your RotoZip spiral saw to make straight cuts

3 products

Cutoff Saw Wheels

Replace the wheel on your cutoff saw

82 products

Cup Brushes

Wider diameters than end brushes clean flat surfaces with more surface area

26 products

Wheel Brushes

Bristles on the edge of the wheel clean, sand, and debur targeted areas

337 products

Lapping Film

Polish workpieces without the mess of pastes and slurries

58 products

Sanding Disc Trimmers

Save the usable inner part of worn sanding discs by cutting the perimeter down a size

8 products

Chain Saw Sharpener Wheels

Pair with chain saw sharpeners to sharpen your chain's teeth and set cut depth

3 products

Fastening and Joining

Washers

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

4,437 products

Cushioning Washers

Cushion joints to dampen vibration and protect them from wear

139 products

Sealing Washers

Prevent fluids from leaking around fasteners

612 products

Finishing Washers

Screw heads sit flush to prevent snagging and to create a neat, finished appearance

139 products

Lock Washers

Resist vibration to prevent fasteners from loosening

466 products

Insulating Washers

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

277 products

Leveling Washers

Curved or tapered to compensate for uneven mounting surfaces

195 products

Shims

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

2,910 products

Magnets

Attract or repel metal objects to hang, secure, or position them

854 products

Electromagnets

Place on flat metal surfaces and turn on the power to create a magnetic hold

25 products

Masking Tape

Temporarily join or protect surfaces

112 products

Mounting Tape

Mount everything from signs and panels to carpet and padding

17 products

Mounting Adhesives

Mount objects with a range of adhesives, including glue-on-a-roll and glue shapes

1 product

Contact Adhesives

Apply adhesive, air dry, and bring surfaces together to bond

1 product

Solder

Join pieces of metal without melting the base material

8 products

Snap-Together Fasteners

Mate the mushroom-shaped heads to join materials together with more holding power than hook and loop

4 products

Hook and Loop

Press interlocking pieces together to join materials

40 products

Building and Machinery Hardware

Bumpers

Absorb impact to protect equipment and surfaces from dents and scuffs

1,429 products

Protective Feet

Add to furniture and light equipment to protect floors from scratches and wear

252 products

Sealing

Gasket Material

Cut custom shapes and sizes to fill gaps between flat surfaces

60 products

Tube Fitting Gaskets

Prevent leaks when connecting sanitary tube fittings

428 products

Power Transmission

Disc Springs

Maintain tension and separate components on shafts, under bolt heads, and at the ends of valves

1,680 products

Bearing Lock Washers

Lock bearing nuts in place to prevent loosening due to vibration

21 products

Fluid Handling

Filter Mesh

Strain particles out of various substances

237 products

Sintered Filters

Tiny holes let particles such as air, gas, and vapor pass through while trapping contaminants

17 products

Filter Paper

Remove particles from liquids in lab testing and other filtration applications

14 products

Pressure-Relief Discs

Rupture at a set pressure or temperature to vent fluid and gas and protect machinery; one-time use

39 products

Heating Elements

Turn electrical current into heat

10 products

Communication