Zinc Plated Square Washer

Zinc plated square washers are essential components commonly used in fastening systems, typically in conjunction with bolts and nuts. Their primary functions are to distribute pressure, protect the surfaces of connected parts, and enhance structural stability. Compared to traditional round washers, their square shape provides a larger contact area and superior slip resistance, making them widely used in construction, machinery, power generation, and various other engineering fields.

1. Large square contact surface for pressure distribution: Offers a larger load-bearing area than round washers, effectively preventing workpiece indentation and deformation. Suitable for wood structures, thin plates, curtain walls, and steel structures.

2. Galvanized for rust prevention, high cost-effectiveness: The zinc coating provides corrosion and rust protection, making it suitable for indoor, general outdoor, and humid environments. It is more durable than blackened finishes.

3. Anti-rotation and stable positioning: The right-angled square shape fits securely into grooves, preventing rotation during tightening. It works best when used with carriage bolts or square-neck bolts.

4. Comprehensive range of sizes; available in larger and thicker versions: Standard sizes are in stock in large quantities; custom sizes with longer sides or increased thickness can also be manufactured upon request.

5. Highly versatile and easy to pair: Compatible with various galvanized bolts, hex bolts, expansion bolts, and anchor bolts.

• Building curtain walls, solar panel mounting systems, and steel structure installation
• Fastening of wood, lightweight walls, and thin panels
• Cable trays, bus ducts, and equipment racks
• Installation of mechanical equipment, pipe supports, and guardrails
• General-purpose corrosion-resistant fastening applications for indoor and outdoor use

Standard Size Chart (mm)

1. Requirement Discussion: Provide drawings (CAD/PDF), samples, or detailed specifications (dimensions, materials, strength, surface treatment, quantity)

2. Quotation: Technical proposal and precise quotation provided within 24 hours; confirm delivery schedule and sample requirements

3. Sample Approval: Prototypes completed within 3–7 days; free samples provided for customer testing

4. Mass Production: Upon sample approval, production organized according to the agreed-upon delivery schedule; progress trackable throughout the process

5. Quality Inspection & Packaging: Comprehensive quality control throughout the process; third-party inspection reports (SGS/BV, etc.) provided; packaged according to export standards

6. Logistics & Delivery: Arrange sea freight, air freight, or express shipping to the customer's designated port or warehouse

• Professional Team: Over 10 years of experience in fastener customization; capable of quickly interpreting various standards (GB/DIN/ISO/ASTM)
• Flexible Minimum Order Quantities: Minimum order quantities for non-standard custom orders are negotiable; volume discounts available for large orders
• Quality Assurance: Comprehensive quality control system, traceable raw materials, and compliance with international quality standards
• Reliable Lead Times: Mature supply chain; rush orders can be expedited to ensure project deadlines are met
• International Trade Support: Complete export documentation provided; payment methods including T/T and L/C supported; tailored to meet the needs of global customers

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