Polypropylene Rounds | McMaster-Carr

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Compliant with Exemptions

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DFARS Specialty Metals

Tread Style

617 Products

Raw Materials

Plastic

A lightweight alternative to metal and glass

47 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

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

Ball Transfers

Install in arrays to create platforms for conveying, rotating, and positioning heavy objects

1 product

Conveyor Roller Bearings

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

17 products

Wheels

Move objects with ease

115 products

Shipping Tubes

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

50 products

Drum Dollies

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

23 products

Fabricating and Machining

Parts Baskets

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

12 products

Power Transmission

Ball Bearings

Create less friction than other bearings for use at high speeds

49 products

Containers, Storage, and Furniture

Trash Cans

Dispose of household garbage, recyclables, and even flammable waste

1 product

Facility and Grounds Maintenance

Floor Drain Covers

Put a lid on open drains to prevent accidents and injuries

2 products

Building and Machinery Hardware

Steering Wheel Knobs

Attach to steering wheels for one-hand operation

3 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

Knobs

Position, tighten, and secure fixtures and equipment

45 products

Protective Plugs

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

4 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

Ball Knobs

Provide grip on control levers and push-pull rods

60 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