Conical Washer

Conical washers, also known as Belleville washers, can be stacked together to create longer springs and higher force in tight spaces than split lock washers. They flatten as pressure is applied, dampening and absorbing vibration and shock. These washers also offer configurability when increasing or decreasing the desired spring rate.

Countersunk Washer

Countersunk washers are bowl-shaped to allow flat or oval countersunk head screws to lie flush with the work surface and to create a more professional finish. Their recessed shape also prevents the screws from damaging soft material. Countersunk washers are often used when installing or repairing wood trim to create a smooth finished appearance over and around the fastener assembly.

Insulator Washer

Insulator washers are highly-durable and corrosion-resistant to insulate screws and other fasteners from mounting surfaces, moisture, dirt, and electricity. Also known as shoulder washers, they dampen vibration and seal leaks. They are used in electrical, HVAC, automotive, and construction applications.

Plain Washer

Plain washers evenly distribute pressure when a bolt or screw is tightened. Its thin, plate-shape increases surface area to prevent the loosening and pullout of a fastener. They also relieve surface friction and can be used as spacers when additional clearance between objects is necessary. Plain washers are available in both standard and bulk pack quantities.

Retaining Washer

Retaining washers, also known as push nuts, grip the outside of bolts, screws, and shaft components, creating a tight fit that prevents turning and loosening.

Rivet Washer

Rivet washers from Grainger help you fasten pieces in soft or brittle materials, especially if an existing hole is oversize. Choose an aluminum or steel rivet washer with the inside and outside diameters, thickness and thickness tolerance you need. Trust Grainger for round and square rivet washers that will help you get the job done right.

Spherical Washer

Spherical washers create a flat bolting surface by clasping two uneven surfaces together ideal for fixture applications. Their thick bodies prevent bolts from bending and twisting.

Spring Washer

Spring Washers create tension by “locking” the bolt or screw into the workpiece’s threaded hole. Unlike flat washers, they have serrations on the washer body to prevent rotation and provide a more secure connection than flat washers. These washers are frequently used in high-vibration environments to prevent the loosening of the fastener assembly.

Wave Washer

These irregular, wavy-shaped washers act as a spring when compressed to maintain fastener tension and sustain loads. Wave washers also eliminate rattles, absorb shock, and compensate for expansion and contraction in components. They are relatively lightweight and often used to distribute pressure in low-strength fastening applications.

Square Washer

Square washers have a larger surface area than round washers for better torque distribution. They are thick with a broad shape to protect against the damage of wood fibers used in wood construction. Square washers also limit sound levels, vibration, and electrical current for use in seismic applications.