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The DIN 125 Flat Washers Grade A are essential dispersion fasteners engineered to distribute load, reduce friction, and prevent loosening in bolted assemblies, with hardness up to 250 HV for reliable performance under stress. These circular, thin metal discs feature a central hole and are available in carbon steel (often zinc-plated for rust resistance), stainless steel (304/316 for corrosion-prone areas), or brass (for superior conductivity). Compliant with DIN 125 standards, they come in sizes from M1.6 to M160, making them versatile for machinery, automotive, and industrial applications where even pressure distribution is crucial. Their low-cost, high-reliability design minimizes bolt damage and enhances joint stability, ideal for both heavy-duty and general use. Manufactured by Duojia in Hebei, China, these Grade A washers meet ISO9001, ISO14001, and ISO45001 certifications, ensuring top-quality materials and eco-friendly production. With fast delivery options, wholesale availability, and a monthly capacity of 10,000 pieces, they provide efficient solutions for professionals needing quick, durable fasteners that prevent vibration-induced failures. Whether in construction equipment or electronic assemblies, these flat washers offer cost-effective load spreading, backed by global exports and customizable options for bulk orders, delivering value through simplicity and strength in fastening systems.
DIN 125 Flat Washers serve as thin, disc-shaped components placed between nuts/bolts and surfaces to evenly spread clamping force, protecting materials from deformation and reducing wear during tightening. Made from robust carbon steel, corrosion-resistant stainless steel, or conductive brass, they undergo optional zinc plating for added rust protection, ensuring longevity in diverse conditions. Sizes range from Φ1.7 to Φ165, with precise hole diameters matching bolt threads for seamless integration. Duojia’s stamping process guarantees flatness and edge smoothness, certified by SGS for consistency and hardness up to 250 HV. Installation is straightforward: position the washer under the nut or bolt head, then tighten to distribute pressure and increase friction against loosening. For optimal use, clean surfaces before assembly to avoid debris, and replace deformed washers to maintain efficacy. These washers excel in automotive chassis, machinery bases, and structural bolting, where they minimize stress concentrations. With nominal thicknesses from 0.3mm to 10mm, they support minimum orders of 100 pieces and 14-30 day fast delivery in secure packaging. Exported worldwide, they offer a practical, economical enhancement to fastening systems, improving joint integrity without adding significant weight or complexity.
| Parameter | Details |
|---|---|
| Product Name | DIN 125 Flat Washers Grade A, up to Hardness 250 HV |
| Material | Carbon Steel, Stainless Steel (304/316), Brass |
| Grade | Grade A, Hardness up to 250 HV |
| Surface Treatment | Plain, Zinc-Plated (optional) |
| Size Range | Φ1.7 to Φ165 (For thread sizes M1.6 to M160) |
| Inner Diameter (d min) | 1.7mm to 165mm (nominal) |
| Outer Diameter (dc max) | 4mm to 250mm (size-dependent) |
| Thickness (h nominal) | 0.3mm to 10mm |
| Standards | DIN 125, ISO9001, ISO14001, ISO45001, SGS |
| Weight per 1000 Units (≈kg) | 0.024 to 7600 (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 (Fast Delivery Options Available) |
These DIN 125 Flat Washers Grade A, with hardness up to 250 HV, excel in dispersing bolt pressure evenly, safeguarding surfaces from gouging and ensuring uniform load across joints for enhanced stability. Available in carbon steel for strength, stainless for rust-proofing, or brass for conductivity, their optional zinc plating adds a protective layer against corrosion without sacrificing flatness. The disc design minimizes friction during tightening, reducing wear on threads and preventing loosening in vibrating conditions. Duojia’s precise manufacturing allows customization in sizes and materials, all tested for dimensional accuracy and durability. These washers integrate seamlessly with bolts, increasing contact area to avoid deformation in soft materials like wood or plastic. Their thin profile adds minimal thickness, maintaining compact assemblies, while the high hardness resists compression under heavy loads. Eco-friendly processes ensure sustainability, meeting ISO standards for low environmental impact. Versatile for high-stress applications, they require no special tools, offering easy integration and replacement. This combination of load distribution, corrosion resistance, and robustness makes them indispensable for secure, long-lasting fastenings, delivering efficiency and reliability in diverse industrial scenarios.
DIN 125 Flat Washers Grade A are vital in applications requiring pressure dispersion and joint protection, such as machinery where they sit under bolts to prevent surface damage and ensure even tightening in engine mounts or frames. In automotive assemblies, they enhance chassis and suspension bolting, reducing vibration-induced loosening for safer performance. General industry uses include electrical enclosures and furniture, where they protect soft materials from crushing during fastening. These washers suit construction for structural bolting, distributing loads in beams or panels to avoid deformation. Duojia’s fast-delivery options support urgent needs in manufacturing lines, with easy placement under nuts for quick setups. Their hardness up to 250 HV handles high-stress environments like heavy equipment, requiring only clean surfaces for optimal use and periodic replacement if worn. Versatile for both indoor and outdoor projects, they improve assembly integrity, minimizing failures and maintenance in sectors from electronics to infrastructure, ensuring stable, efficient connections globally.
