What is countersunk washer?

Definition: Countersunk washers are available in three styles to fit most applications. Countersunk washers serve the same function as a flat washer, but they provide a bearing surface for flat head screws. An additional application is providing a sealing function for flat head screws.

What is a finishing washer?

Finishing washers, also referred to as countersunk washers, provide a flush surface and are custom manufactured in several common styles including: 90 degree, angle, flanged, un-flanged and rolled flange.

What is a trim washer?

Decorative Washers Trim washers have many uses: they can dress-up screw heads when you need to leave them exposed, or to “convert” a flat-head screw to a round-washer or panhead-type screw when the screw cannot be countersunk.

What are fender Washers?

A fender washer, though similar in shape to a standard washer, differs in that the outside diameter is traditionally much larger in proportion to the center hole. With this design, a fender washer can be placed under the head of a bolt or nut to help distribute forces applied when tightening.

What is C washer?

C washers are designed to be slide in and out of position on a bolt or shaft in a partially completed assembly or can be used as a retention device on a grooved shaft to keep components in place.

When should you use a flat washer?

Flat and Lock Washer Use Flat washers may be used on either the bolt side, the nut side or both sides of the fastener. Flat washers help to distribute the force of tightening the nut by increasing the surface area. They may also be useful as spacers when a bolt may be a bit too long for the job.

What are zinc washers used for?

These washers are used to prevent pull-though and provide a greater bearing surface under the fastener. This prevents nuts, bolts or screws from pulling through base material.