Short Listing: flat washers, beveled, C-washers, D-shaped washers, countersunk or
finishing washers, fender washers, lock washers, SAE washers, sealing washers,
spherical washers, square washers, tab washers, torque washers, shoulder washers, and
spring washers.

Main Listing:

Washers manufactured by Erfolg are disks of metal or non-metallic material placed
beneath a nut, an axle bearing, or a joint, to relieve friction, prevents leakage,
isolate, prevent loosening or distribute pressure. There are many different types of
washers and washer type products for a variety of applications. Common types include
flat washers, beveled, C-washers, D-shaped washers, countersunk or finishing washers,
fender washers, lock washers, SAE washers, sealing washers, spherical washers, square
washers, tab washers, torque washers, shoulder washers, and spring washers.

Flat washers are thin, flat, and circular general-purpose washers, with a centrally
located hole. Beveled washers have a tapered bearing surface. C-washers have a slot
cut from the center to the perimeter. Typically the slot is the same width as the
"center hole." D-shape washers have a flat edge cut away on the parameter.

Countersunk washers come in a number of shapes: 90 degree countersunk, angle
countersunk, flanged, unflanged, rolled flange, etc. Most people are familiar with
the finishing type used for cosmetic purposes on many consumer products. Fender
washers have a large outside diameter in comparison to the inside diameter. External
tooth lockwashers have teeth around the outer perimeter of the washer. Helical
spring lockwashers are split rings of metal or steel that when tightened, resist
loosening. Internal tooth lockwashers have teeth around the internal perimeter.