Stainless Steel Washers

Stainless Steel Washers are critical components used to distribute the load of a threaded fastener, such as a bolt or nut, while preventing surface damage and ensuring a tight seal. Zeron Fasteners specializes in manufacturing a diverse range of washers in premium grades, including SS 304, 316, 310, and 904L. Our inventory includes Plain (Flat) Washers, Spring Washers, Star Washers, and Tab Washers, all designed to offer excellent corrosion resistance and mechanical stability. These washers are indispensable in industries ranging from automotive and construction to marine and chemical processing, where they prevent galvanic corrosion and loosening due to vibration.

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Stainless Steel Washers

Technical Specifications

Standard DIN, ASTM, BS, ANSI, ISO, IS
Size M3 to M100, 1/4" to 4"
Thickness 0.5mm to 10mm
Types Plain, Flat, Spring, Lock, Star, Fender, Dock Washers
Finish Plain, Passivated, Polished

Chemical Composition

Element SS 304 (%) SS 316 (%) SS 904L (%)
Chromium (Cr) 18.0 - 20.0 16.0 - 18.0 19.0 - 23.0
Nickel (Ni) 8.0 - 10.5 10.0 - 14.0 23.0 - 28.0
Molybdenum (Mo) - 2.0 - 3.0 4.0 - 5.0
Carbon (C) 0.08 max 0.08 max 0.02 max

Mechanical Properties

Property Value (Typical)
Tensile Strength 515 MPa (75 ksi)
Yield Strength 205 MPa (30 ksi)
Elongation 35 - 40 %
Hardness 95 HRB max

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