Shoulder washers, also known as insulating washers, can be manufactured to your specifications. They can also be made from hex or square stock, not just round bar stock except where there is an asterisk. Instead of a clear hole, threads may be specified insteadi.e A=6-32. Also, the dimensional tolerances can be adjusted to meet a more precise fit, i.e B =+-.002 as an example.
Dimensional Tolerances and Material Codes:
How to order example:
You need a 3/4" Diameter Washer with a .315" Hole out of 303 Stainless that is 3/16" Thick.
Order part# FW.750-StSt1-.315-.187