Heavy-Duty GB96.2 Carbon Steel Fender Washers | Class 4.8 Galvanized Surface
Price:
Negontiation
MOQ:
20000
Delivery Time:
7-25DAYS
Brand:
YB
Product Description
Heavy-Duty GB96.2 Carbon Steel Fender Washers | Class 4.8 Galvanized Surface
Product Overview
GB 96.2 Class 4.8 Carbon Steel Large Outer Diameter Flat Washers are engineered to distribute fastener loads across a larger surface area, minimizing stress concentration and preventing deformation on thin-sheet metal, soft materials, or oversized bolt holes.
Manufactured from high-quality low-carbon steel with protective bright zinc plating, these fender washers deliver consistent dimensional accuracy, excellent corrosion resistance, and reliable structural support for machinery, construction, and automotive applications.
Key Features & Advantages
- Large Load-Bearing Surface: Designed per GB 96.2 standards, the expanded outer diameter (OD) distributes tightening torque evenly, protecting workpieces from surface damage.
- Reliable Class 4.8 Strength: Processed to strict mechanical property standards with optimized ductility and moderate tensile strength for non-critical structural fastening.
- Corrosion-Resistant Zinc Finish: Electro-galvanized coating provides protection against moisture, oxidation, and rust in indoor and general industrial environments.
- Precision Stamping & Smooth Edges: Advanced stamping technology ensures uniform thickness, flat surfaces, and minimal burrs for seamless assembly line integration.
Technical Specifications
| Parameter / Feature | Specification Details |
|---|---|
| Standard | GB/T 96.2 (Large Series Flat Washers) |
| Material | Low Carbon Steel (Q195 / Q235 or equivalent) |
| Property Class | Class 4.8 |
| Surface Treatment | Electro-Zinc Plated (Cr3+ Blue-White / Yellow / Clear) |
| Size Range | M3 - M36 (Custom sizes available upon request) |
| Hardness Range | 100 HV - 200 HV |
| Salt Spray Test | Neutral Salt Spray (NSS) 24h - 72h (Customizable) |
| Application | Construction, Electrical Equipment, Woodworking, Sheet Metal Assembly |
Dimensional Specifications
| d | Φ3 | (Φ3.5) | Φ4 | Φ5 | Φ6 | Φ8 | Φ10 | Φ12 |
|---|---|---|---|---|---|---|---|---|
| d MIN | 3.4 | 3.9 | 4.5 | 5.5 | 6.6 | 9 | 11 | 13.5 |
| d Max | 3.7 | 4.2 | 4.8 | 5.8 | 6.96 | 9.36 | 11.43 | 13.93 |
| dc MIN | 5.85 | 7.81 | 9.81 | 11.77 | 12.77 | 13.77 | 14.77 | 15.77 |
| dc Max | 5.97 | 7.96 | 9.96 | 11.95 | 12.95 | 13.95 | 14.95 | 15.95 |
| h Max | 1 | 1 | 1.2 | 1.2 | 1.9 | 2.3 | 2.8 | 3.6 |
| h Min | 0.6 | 0.6 | 0.8 | 0.8 | 1.3 | 1.7 | 2.2 | 2.4 |
Applications & Industry Uses
GB 96.2 large series flat washers are widely applied in scenarios requiring enhanced load distribution:
- Sheet Metal Assembly: Prevents pull-through on soft or thin steel panels
- Timber & Structural Joints: Spreads pressure on wood or softer composite substrates to reduce crushing
- Automotive & Industrial Machinery: Buffers vibration and maintains joint stability over extended operation
- General Hardware & Infrastructure: Used in steel framing, enclosures, and electrical rack mountings
Quality Control & Manufacturing Standards
Every batch of GB 96.2 carbon steel washers undergoes rigorous quality inspections to ensure full compliance with international buyer expectations:
- Dimensional Testing: Caliper and gauge verification of inner diameter (ID), outer diameter (OD), and thickness
- Plating Thickness Check: Magnetic thickness testing for uniform zinc layer coverage
- Mechanical & Surface Inspection: Visual burr detection and load tolerance testing before packaging
Packaging & Logistics Options
- Standard Export Packaging: Bulk in 20/25 kg cartons + fumigated wooden pallets
- Small Box Packaging: Customized polybags or small inner boxes with custom barcode labeling
- Port of Loading: Ningbo / Shanghai / Lianyungang, China
- Trade Terms: FOB, CFR, CIF, DDP, DAP
Frequently Asked Questions (FAQ)
Q1: What is the main difference between GB 96.2 and standard GB 97.1 flat washers?
A: GB 96.2 features a significantly larger outer diameter (approximately 3× the nominal thread diameter), making it ideal for soft materials, elongated holes, or high-torque load distribution compared to standard GB 97.1 washers.
Q2: Can you provide customized salt spray testing for higher corrosion protection?
A: Yes, we can offer thicker electro-zinc coatings or passivation processes (such as yellow zinc or ROHS-compliant trivalent chromium) to meet specific salt spray resistance requirements (e.g., 48h to 96h).
Q3: Are samples available before placing a bulk order?
A: Yes, standard size samples are provided free of charge for quality verification and fit testing. Shipping fees apply.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
NINGBO YONGBIAO FASTENER CO.,LTD
Location
No.1 Lufeng Industrial Park, Wuxiang Town, Yinzhou District, Ningbo City, Zhejiang, China
Contact Person
Amylin