USS

USS Flat Washer 3/8"

Category: Hardware & Fasteners

SKU: 7 38287 61966 9

$0.18

In Stock · Midwest Builder & Supply — Iowa & Missouri

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Product Description

3/8" USS (United States Standard) flat washer — a general-purpose plain washer manufactured to ASME/USS dimensions for use with 3/8" fasteners. Typical catalog dimensions for a 3/8" USS washer are approximately 0.438" I.D. and 1.00" O.D. with a nominal thickness in the ~0.064"–0.104" range; material and finish options commonly offered include low‑carbon (Grade 2) steel (plain, zinc/galvanized, black oxide, chrome) and stainless (18‑8 / 316) for corrosion resistance. These washers are sold as individual pieces or in consumer and trade packs (examples: 8‑pack, 25 pk, 100 pk) and are intended to spread load, protect mating surfaces, and improve clamping performance in mechanical, structural, agricultural, and general maintenance applications.