Round Washers | McMaster-Carr

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19,276 Products

Fastening and Joining

Washers

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

4,824 products

Lock Washers

Resist vibration to prevent fasteners from loosening

1,659 products

Leveling Washers

Curved or tapered to compensate for uneven mounting surfaces

195 products

Sealing Washers

Prevent fluids from leaking around fasteners

752 products

Finishing Washers

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

156 products

Cushioning Washers

Cushion joints to dampen vibration and protect them from wear

167 products

Cross-Bracing Washers

Connect cross-bracing rods or cables to structural beams; also known as hillside washers

20 products

Insulating Washers

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

277 products

Shims

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

2,756 products

Spacers

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

4,778 products

Unthreaded Inserts

Reinforce, align, and adjust joints as you tighten a fastener

69 products

Power Transmission

Springs

Apply and absorb force with compression, die, extension, torsion, and disc springs

1,681 products

Thrust Bearings

Support loads parallel to the shaft with plain, ball, or roller bearings

839 products

Bearing Lock Washers

Lock bearing nuts in place to prevent loosening due to vibration

103 products

Building and Machinery Hardware

Grommets

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

928 products

Vibration-Damping Mounts

Attach to machinery to reduce vibration and noise and extend service life

18 products

Electrical

Battery-Terminal Washers

Stop battery acid fumes from corroding terminal posts

1 product

Electrical Enclosure Fasteners

Mount components to your enclosure without worrying about leaks

3 products

Heat-Shrink Tubing

Apply heat to seal and insulate electrical wiring and connections

3 products

Conduit and Conduit Fittings

Protect wiring from impact and the environment in runs indoors, outdoors, and underground

19 products

Electrical-Terminal Washers

Prevent wires from slipping out from under screw heads to keep electrical connections intact

6 products

Material Handling

Tie-Down Washers

Angled sides align and hold tie-down straps

5 products

Fabricating and Machining

Clamp Holding Washers

Replace worn washers on open-arm toggle clamps to keep holding screws in place

12 products

Communication

Tag Washers

Bolt onto surfaces to mount tag rings and ties

18 products