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The DIN 433 HV Washers with white zinc plating are compact, high-strength circular flat discs designed for precise pressure distribution in bolted assemblies, featuring an HV hardness mark (e.g., 140HV or 250HV) for enhanced durability and load-bearing capacity. Crafted from premium carbon steel and electroplated with white zinc, these washers provide a bright, corrosion-resistant finish that protects against rust while ensuring smooth integration with medium-to-high-strength bolts like grades 4.8, 5.8, or 8.8. Their reduced outer diameter makes them ideal for tight-clearance applications, preventing surface damage and maintaining stable fastening under stress. Compliant with DIN 433 standards, they are essential for securing cheese-head or socket-head screws in machinery, automotive components, and industrial equipment. Manufactured by Duojia in Hebei, China, these white zinc-plated HV washers meet ISO9001, ISO14001, and ISO45001 certifications, guaranteeing quality and eco-friendly production. Perfect for professionals seeking reliable, vibration-resistant solutions, they distribute bolt pressure evenly, reducing wear and extending joint life. With custom sizing from M2.5 to M36, fast delivery, and wholesale options supporting 10,000 pieces monthly, these high-strength fastening washers optimize performance in heavy industry and general applications, offering cost-effective corrosion protection and easy installation for global projects requiring precision and strength in confined spaces.
These DIN 433 HV washers are thin, flat components with a central hole, engineered to fit between bolt heads/nuts and surfaces, evenly spreading clamping forces to safeguard against deformation in high-torque setups. The white zinc plating applies a uniform, shiny layer via electro-galvanization, offering reliable rust resistance for indoor or mildly exposed environments, while the HV mark ensures hardness levels suitable for demanding loads. Made from high-strength carbon steel with optional black oxide or zinc treatments, they support bolt sizes from M2.5 to M36, providing stable performance in compact spaces. Duojia’s stamping process delivers smooth edges and consistent thickness, certified by SGS for mechanical integrity. Installation requires matching the washer to the bolt size (e.g., M8 for M8 bolts), cleaning surfaces, placing it between the bolt and part, and tightening to avoid over-compression or damage. Regular checks for wear or corrosion are recommended, especially in vibrational settings—replace if compromised to sustain fastening stability. These washers excel with socket-head or cheese-head screws in automotive assemblies, machinery frames, and equipment housings, enhancing joint security without adding bulk. With minimum orders of 100 pieces and 14-30 day delivery in secure packaging, they are exported worldwide, delivering versatile, protective solutions for efficient pressure distribution in industrial fastening.
| Parameter | Details |
|---|---|
| Product Name | DIN 433 HV Washers – White Zinc-Plated High-Strength Fastening |
| Material | High-Strength Carbon Steel |
| Grade | HV (e.g., 140HV, 250HV) |
| Surface Treatment | White Zinc Plated; Options: Black Oxide, Plain |
| Size Range | M2.5-M36 (For nominal thread diameters) |
| Inner Diameter (d min) | 2.25mm-37mm (nominal) |
| Outer Diameter (dc max) | 6mm-58mm (size-dependent) |
| Thickness (h nominal) | 0.6mm-5mm |
| Standards | DIN 433, ISO9001, ISO14001, ISO45001, SGS |
| Hardness | Up to 250 HV |
| Weight per 1000 Units (≈kg) | 0.11-61.5 (varies by size) |
| Packaging | Small Pack + Carton + Pallet or Bag/Box with Pallet |
| Minimum Order | 100 Pieces |
| Supply Ability | 10,000 Pieces per Month; 500 Tons per Month |
| Delivery Time | 14-30 Days depending on quantity |
DIN 433 HV Washers with white zinc plating offer exceptional hardness up to 250 HV, enabling superior load distribution that protects bolts and surfaces from excessive pressure, outperforming standard washers in high-strength fastening. The white zinc electroplating provides a glossy, corrosion-resistant coating that enhances aesthetics and longevity in moderate environments, while carbon steel construction ensures robustness without brittleness. Their compact outer diameter fits snugly in tight spaces, ideal for socket-head or cheese-head screws, minimizing protrusion while maximizing stability. Customizable sizes from M2.5 to M36 allow precise matching to bolt specifications, with the HV mark guaranteeing verified strength for reliable performance. Duojia’s production supports tailored options, all tested for flatness and torque resistance to prevent failures. These washers reduce friction during assembly, facilitating easier tightening and disassembly, and their design counters vibrations effectively in dynamic systems. Lightweight and thin, they add minimal bulk to assemblies, promoting efficiency without sacrificing durability. Sustainable manufacturing adheres to ISO standards, ensuring low environmental impact. This integration of high hardness, protective plating, and adaptability delivers enhanced joint security, surface preservation, and ease of use, making them a preferred choice for applications requiring dependable, space-efficient fastening with long-term reliability.
DIN 433 HV Washers with white zinc plating are indispensable for high-strength fastening in machinery, where they distribute pressure under socket-head screws in gear assemblies or frames, preventing deformation in confined areas. Automotive uses include securing chassis components, ensuring stable joints amid road vibrations for improved vehicle safety. In industrial equipment, they protect surfaces in pump or valve housings, pairing with medium-strength bolts to maintain integrity under torque. These washers suit construction for fixture attachments in tight spaces, reducing stress on materials like metal panels. Duojia’s customizable sizing supports specialized needs in electronics or robotics, with simple placement enhancing assembly speed. Their HV hardness handles demanding loads, requiring only surface cleaning for maintenance to sustain performance. Versatile for both precision engineering and general builds, they minimize wear, boosting efficiency in sectors from manufacturing to infrastructure. With global distribution, they enable secure, pressure-balanced connections in diverse projects, ensuring durability and reliability worldwide.
