Countersunk Finishing Washer: Dimensions & Specifications

Countersunk Finishing Washers Drawing

Countersunk Finishing Washers

 Screw Size

Click on the size to shop products

 Outside Diameter (OD)

 Inside Diameter (ID)

Overall Height
Max Min Max Min Max Min
#4 .375 .334 .150 .113 .103 .078 
#6 .469 .424 .200 .161 .103 .078 
#8 .543 .518 .220 .180 .110 .086 
#10 .606 .581 .279 .235 .126 .103 
#12 .704 .656 .299 .259 .138 .113 
1/4 .794 .762 .338 .305 .156 .125
5/16 .938 .864 .409 .373 .188 .141
3/8 1.125 .980 .460 .425 .260 .235

 

NOTE: Currently, there is no single set of requirements accepted as the industry standard for countersunk finishing washers.
As a guideline for what's accessible, we give these sizes. If it is critical to meet particular dimensions, verify with your provider.


Description


A circular washer created to be used with flat or oval head screws. This is an elevated sort of convex-shaped finish washer. For use with flat and oval head screws with a countersunk of 82°.

Applications/
Advantages


Designed to accommodate countersunk screw heads. It offers extra bearing area for the material being
fastened and can be used to offer a smooth, completed look.


Material

Steel: Washers are to be punched from hot-rolled, hot-rolled and pickled, cold-rolled steel, machined from bar stock or tubing, or forged at the option of the manufacturer.
Stainless: 18-8 Stainless Steel
Plating

Typically, finishing washers are plated with nickel, black oxide as well as other coatings. Generally,
stainless washers are supplied without additional finish.