These washers have exaggerated diameters and/or thicknesses for covering oversized holes or for use as spacers and levelers.

As a screw is tightened, these washers flatten to add tension to the joint and prevent loosening from small amounts of vibration.

Also known as shoulder and insulator washers, these nonmetal washers block electrical current and prevent corrosion from mating different types of metal.

Slide onto a shoulder screw to shorten the length of the shoulder.

Use round shims to precisely align, level, and adjust spacing on shafts and machinery.

Be prepared with ring shims in a variety of thicknesses. These shims are color-coded by thickness for easy identification.

All of the O-rings in these assortments are made of Buna-N. They resist animal, vegetable, and motor oils.

Also known as Boss O-rings, these hard O-rings are for use in tube fittings with a straight-thread connection.

Also known as Quattro Seals and X-rings, these X-profile O-rings have four points of contact for a better seal in dynamic applications than round-profile O-rings. They also require less compression to make a seal, so they offer a longer service life.

In addition to water and steam, these EPDM O-Rings resist ethanol and ethylene glycol.

All of the O-rings in these assortments are Viton® fluoroelastomer and resist isopropyl alcohol, mineral oils, and transmission fluid.

Also known as Boss O-rings, these hard Viton® fluoroelastomer O-rings are for use in tube fittings with a straight-thread connection. They offer excellent resistance to wear.