Wide Face Washers (also known as large-diameter washers or fender washers) feature an oversized outer diameter relative to their center hole, designed to distribute the load of bolts/nuts over a broader surface area. This reduces pressure on connected materials, prevents indentation or damage, and enhances stability in high-stress applications. Manufactured from carbon steel (zinc-plated), stainless steel (304/316), or plastic (nylon), they offer corrosion resistance, insulation, or lightweight performance.
- Material:
- Carbon Steel: Grade A36 (zinc-plated/black oxide for general use).
- Stainless Steel: 304 (A2) for corrosion resistance; 316 (A4) for marine/chemical environments.
- Plastic: Nylon (UL94 V-0), Polyethylene (PE) for non-conductive/non-magnetic needs.
- Size Range:
- Metric: M3–M130 (ISO 7089, GB/T 5287).
- Imperial: #5–5" (ASME B18.22.1).
- Key Dimensions:
- Outer Diameter (OD): 2× to 5× bolt diameter (e.g., M8 washer: OD = 20–40 mm).
- Thickness: 1–10 mm (customizable for load requirements).
- Finish: Zinc plating (RoHS/REACH), passivated (stainless steel), or self-color (plastic).
- Standard Carbon Steel/Zinc-Plated (M6–M24): 10,000 pieces (in-stock sizes).
- Stainless Steel (304/316): 5,000 pieces (custom OD/thickness available).
- Plastic/Nylon: 2,000 pieces (e.g., M10–M16 for electronics).
Factory Advantages: ISO 9001-certified production, precision stamping for uniform thickness, and support for non-standard OD-to-hole ratios (e.g., extra-wide OD for fragile materials) with lead times of 7–15 days.
- Automotive: Securing fenders, bumpers, and trim panels to prevent metal deformation from bolt tension.
- Construction:
- Steel structures: Distributing loads in beam-column connections (ASTM A325 bolts).
- Wood framing: Reinforcing joints in decks or pergolas to avoid splitting.
- Industrial Machinery: Mounting motors, pumps, or conveyor systems with high-vibration loads.
- Electronics/Utilities: Insulating electrical connections (nylon washers) or grounding plates in power equipment.
- Load Distribution: Reduces surface pressure by up to 70% compared to standard washers (calculated via contact area expansion).
- Corrosion Resistance:
- Zinc-plated carbon steel: 500+ hours salt spray (ASTM B117).
- 316 stainless steel: 1,000+ hours salt spray for offshore/chemical plants.
- Non-Metallic Benefits:
- Nylon: Insulates against electrical current and prevents galvanic corrosion between dissimilar metals.
- Rubber variants: Absorb shocks and reduce noise in moving parts (e.g., automotive suspensions).
- Material Grades: Aluminum (for lightweight), brass (decorative), or spring steel (for dynamic loads).
- Special Coatings: PTFE (low friction), anti-slip embossing, or UV-stabilized finishes for outdoor plastics.
- Bespoke Sizes: Oversized OD (e.g., 200 mm for M50 bolts) or stepped washers for angled surfaces.
- Engineering Support: Free CAD drawings and load calculation assistance for complex projects.
- Quality Assurance: 100% dimensional inspection (OD, thickness, hole tolerance ±0.1mm).
- Sustainability: Recyclable steel/plastic options and low-carbon packaging.
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