Polypropylene Rounds | McMaster-Carr

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System of Measurement

Wheel Diameter

Shape

Thread Size

Diameter

Length

Wheel Width

Axle Diameter

Mount Type

Threaded Through Hole

Screw Size

Head Diameter

Performance

Highly Electrical Insulating

Grip Style

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

Wheel Type

RoHS

Compliant with Exemptions

Not Compliant

Export Control Classification Number (ECCN)

REACH

Hub Length

DFARS Specialty Metals

Wheel Bearing Type

For Use With

Grinders for Bits and Burs

588 Products

Raw Materials

Plastic

A lightweight alternative to metal and glass

47 products

Fabricating and Machining

Parts Baskets

Contain parts for cleaning and moving them in and out of washers

10 products

Tube Brushes

Remove contaminants from tubes, pipes, and holes

7 products

Fastening and Joining

Spacers

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

69 products

Washers

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

37 products

Binding Barrel Posts

Pair with a cap or screw to create a custom low-profile fastener

6 products

Building and Machinery Hardware

Ball Knobs

Provide grip on control levers and push-pull rods

60 products

Steering Wheel Knobs

Attach to steering wheels for one-hand operation

3 products

Knobs

Position, tighten, and secure fixtures and equipment

45 products

Hand Wheels

Rotate to adjust machinery, valves, drill presses, and other equipment

18 products

Indicating Knobs

Control devices and view settings at a glance

13 products

Protective Caps

Protect just about anything, including pipe, flanges, screws, and posts

5 products

Grommets

Protect wire, cable, and cords from holes with sharp or rough edges

2 products

Protective Plugs

Insert into holes in pipe, containers, panels, and parts to keep out debris

4 products

Fluid Handling

Floats

Replace a float or combine with a rod and valve body to build your own float valve

17 products

Sieves

Sift material by shaking and letting it fall through

5 products

Material Handling

Drum Dollies

Instead of tilting heavy loads on drum trucks, roll drums upright to where you need them

23 products

Wheels

Move objects with ease

115 products

Conveyor Roller Bearings

Replace bearings on conveyor rollers, or press into tubing or pipe to create a roller

15 products

Shipping Tubes

Protect rods, rolled-up blueprints, and other long, thin objects during shipping

68 products

Containers, Storage, and Furniture

Trash Cans

Dispose of household garbage, recyclables, and even flammable waste

3 products

Facility and Grounds Maintenance

Floor Drain Covers

Put a lid on open drains to prevent accidents and injuries

2 products

Communication

Labels

Stick onto items to identify or convey information about them

11 products

Floor Decals

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

3 products