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What are ISO 7092 HV 200 A4 Stainless Steel Flat Washers?
ISO 7092 washers are metric flat washers with a small outside diameter, providing a compact bearing surface for bolts, screws, and nuts. Their reduced outside diameter makes them useful in confined areas and applications where a standard washer would be too large. These washers are manufactured to the 200 HV hardness class, providing increased resistance to indentation and deformation compared with softer stainless steel washers.
What does HV 200 mean for ISO 7092 Washers?
HV 200 refers to the washer's Vickers hardness class, indicating a minimum hardness of 200 HV. This higher hardness helps the washer resist deformation when subjected to the high compressive forces generated by tightening a fastener. It provides a more durable bearing surface and is particularly beneficial in assemblies using higher-strength fasteners.
The 200 HV designation also distinguishes these washers from traditional DIN 433 small outside diameter washers. ISO 7092 represents the newer international specification, with defined mechanical requirements that include the 200 HV hardness class for stainless steel washers. This makes ISO 7092 200 HV washers a specialty alternative to the softer stainless small OD washers often associated with legacy DIN specifications.
What material are ISO 7092 HV 200 A4 Stainless Steel Washers made from?
These washers are manufactured from A4 stainless steel, also known as 316 or marine-grade stainless steel, with a 200 HV hardness classification. A4 stainless offers superior corrosion resistance compared with A2 stainless, particularly in environments exposed to saltwater, chlorides, coastal conditions, and persistent moisture.
The combination of marine-grade A4 stainless steel and 200 HV hardness provides both excellent corrosion resistance and increased resistance to washer deformation, making these a premium specialty washer for demanding applications.
Where are ISO 7092 HV 200 A4 Stainless Steel Washers commonly used?
ISO 7092 A4 200 HV washers are commonly used in marine equipment, boats and yachts, coastal structures, automotive and motorsport equipment, outdoor machinery, industrial equipment, pumps, electrical equipment, and precision mechanical assemblies. Their small outside diameter is particularly valuable where space is restricted, while the A4 stainless construction and 200 HV hardness provide the corrosion resistance and durability needed for demanding environments.
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