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DIN 7349 Hardened Washer HV 200 – Steel, Zinc Plated
What is a DIN 7349 HV 200 Zinc Plated Steel Washer?
DIN 7349 washers are heavy-duty hardened flat washers designed for use with high-strength bolts and screws, particularly where increased resistance to deformation, embedding, and surface pressure is required. Compared with a standard flat washer, DIN 7349 washers feature a larger outside diameter and are designed to distribute clamping force over a wider area.
These versions are manufactured to an HV 200 hardness, making them a specialty, high-hardness option compared with the more commonly available HV 140 DIN 7349 washers. The increased hardness provides greater resistance to indentation and deformation under high clamping loads, making HV 200 washers particularly useful in demanding fastening assemblies where standard washers may not provide sufficient surface hardness. They are also known as hardened flat washers, high-strength washers, structural washers, heavy-duty flat washers, and DIN 7349 bolt washers.
What material and finish is a DIN 7349 HV 200 Washer made from?
These DIN 7349 washers are manufactured from hardened steel with a minimum hardness of HV 200 and finished with zinc plating for added corrosion resistance. The hardened steel construction provides significantly greater resistance to deformation and surface indentation than softer washer materials.
The zinc plated finish helps protect the steel from rust and oxidation in general industrial and indoor applications while maintaining the mechanical properties of the hardened HV 200 washer. This combination of high hardness and corrosion protection makes these washers suitable for demanding mechanical assemblies.
Why choose a DIN 7349 HV 200 Hardened Washer?
DIN 7349 HV 200 washers are an excellent choice when a fastening assembly requires more than the commonly available HV 140 washer hardness. The higher HV 200 hardness provides increased resistance to embedding and deformation, helping maintain a stable bearing surface beneath the head of a bolt or screw.
Because HV 200 DIN 7349 washers are considerably less common and more difficult to source than standard HV 140 versions, they are particularly valuable for specialized machinery, engineered assemblies, and replacement applications where a specific high-hardness washer is required.
Where are DIN 7349 HV 200 Zinc Plated Steel Washers commonly used?
DIN 7349 HV 200 zinc plated steel washers are commonly used in heavy machinery, industrial equipment, agricultural machinery, construction equipment, automation systems, material handling equipment, gearboxes, pumps, electric motors, steel fabrications, transportation equipment, and OEM manufacturing.
They are particularly useful with high-strength bolts and socket head cap screws, where the washer must provide a durable bearing surface capable of resisting deformation under high tightening loads. These rare HV 200 washers are also an excellent choice for equipment repair, maintenance, replacement parts, and engineered applications requiring a harder washer than the standard HV 140 version.
