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SAE (Society of Automotive Engineers) and USS (United States Standard) washers are generally thought of together as the standard low cost option for flat washers in general usage. SAE washers are smaller in all dimensions than USS, so they don't distribute loads as well as the USS. However, they fit in many places that don't have room for the larger USS. These washers are generally manufactured out of low carbon steel with a zinc plating. We offer from stock a finely made washer out of 300 Series Stainless steel (302,303,304), which offers a combination of strength and corrosion resistance, or Type 316 Stainless Steel which offers a bit less strength, but more corroision resistance. Type 316 is specified in most marine and salt water environments, as well as most food processing and chemical plants.
Made in the USA. These flat washers are produced in the USA for excellent quality conformance. One of the significant differences between less expensive imported products and ours are the way we stamp. Many cheap imports are produced on gang dies that produce 10 or more washers per stroke of the press. Using such a large die means that the individual washer sets are not adjustable - when the punch wears, the dimensions change and there is no way to fix this as the press produces washers, leading to a large variation in the finished part.
Materials available in many other countries are not as consistent as the domestic steels we use, which gives the imports a cheaper cost, but can lead to failures and inconsistencies when the products are used. The Defense Federal Acquisition Regulation Supplement (DFARS) was created to address this problem. Our materials are DFARS compliant although we do not supply the certification except on special order.
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