Keystone Screw Corporation is a leading domestic manufacturer of brass and silicon bronze cold-headed fasteners. With more than 60 years of manufacturing fasteners Keystone has built a solid reputation for very competitive pricing, the highest standards of quality, and unequalled customer service. We manufacture our products for various industries with major activity in the electrical, plumbing, and automotive industries with machine screws, plumbing bolts and fasteners, semi-tubular rivets, and hex-head cap screws, as well as being a leading provider of brass and silicon bronze cold-heading wire. We also manufacture fasteners using copper, aluminum and steel, servicing OEM’s as well as fastener distributors. We are ISO 9001:2008 certified.
800-523-6733
https://www.keystonescrew.com
https://www.superiorwasher.com/washers/7901/All-Washers.html
When you click this video clip, prepare to learn more about a most basic fastening material that is used in almost all fastening applications. The disc-shaped components known as washers have properties based on the material from which they are manufactured, that allow them to perform fastening functions as reliably as possible.
There are different types of washers and each type is designed to deliver a specific purpose and function. Spring and Belleville are two of such other popular types of fastening hardware aside from the standard type.