Technical Specifications
Boltsourcing Auto Parts Co., Ltd. offers unparalleled advantages in industrial fastener solutions.
Production Capabilities
- 20+ Years Expertise: Precision washer production since 2000.
- Scalable Capacity: 1,800+ sqm facility with 30+ automated production lines.
- Annual Output: 200 million+ pieces with consistent quality control.
- Rapid Prototyping: 24-hour sample service, 3-day mass production turnaround.
- Flexible MOQ: Supports trial orders from 500pcs to million-piece bulk orders.
Quality Assurance
- Precision Tolerance: ±0.1mm accuracy maintained through CNC control.
- 3-Stage Inspection: Full-process QC from raw materials to shipment.
- Traceability System: Batch number tracking for all products.
Customization Services
- Material Options: Stainless steel (304/316), carbon steel, brass, copper, etc.
- Surface Treatments: Zinc plating, nickel plating, passivation, Dacromet, etc.
- Technical Support: Dedicated engineers for product selection solutions.
- CAD Compatibility: Direct tooling from customer CAD files.
Supply Chain Strengths
- Direct Material Procurement: Partnership with tier-1 steel mills.
- Safety Stock: Maintain 300+ metric tons of ready-to-ship inventory.
- Dual-Shift Production: 40+ skilled workers ensuring stable capacity.
- Price Stability: Seasonal procurement plans to buffer material fluctuations.
Logistics Services
- Global Shipping: Partnerships with DHL, FedEx, and ocean freight forwarders.
- Express Delivery: 48-hour dispatch for standard products.
- Production Transparency: Real-time workshop video updates available.
- Bilingual Support: Technical documentation in English/Chinese.
Cost Advantages
- 15-20% Cost Savings: Achieved through vertical integration & automation.
- Mold Efficiency: 30% faster die changeover than industry average.
- Material Utilization: 99% efficiency through optimized nesting.
Quick Specification Lookup
Search our comprehensive database of technical specifications by product type, standard, or application. Get instant access to dimensional drawings, material certificates, and performance data.
Dimensional Drawings
Precise technical drawings with all critical dimensions and tolerances
Material Certificates
Complete material test certificates and compliance documentation
Performance Data
Tensile strength, torque values, and load capacity specifications
CAD Files
Downloadable 2D/3D CAD models for design integration
Standards Guide
Comprehensive reference guide for international fastener standards. Our products comply with major global standards to ensure quality and compatibility across different markets and applications.
International Standards
We manufacture fasteners according to the world's most recognized standards, ensuring global compatibility and quality assurance.
Standards Comparison
Understanding the differences between standards helps you choose the right fasteners for your specific application and regional requirements.
Quality & Testing Standards
Our fasteners undergo rigorous testing according to international quality standards to ensure reliability and performance in critical applications.
Tensile Testing
ISO 898-1, ASTM F606
Hardness Testing
ISO 6507, ASTM E18
Corrosion Testing
ISO 9227, ASTM B117
Dimensional Testing
ISO 4759, ASME B18
Download Standards Documentation
Need help selecting the right standard for your application? Contact our technical team for expert guidance.
Frequently Asked Questions
Your questions answered. We're here to help you understand our processes and ensure a smooth partnership.
Production & Ordering
- Minimum Order Quantity (MOQ):
- Standard washers: 500 pcs
- Custom designs: 5,000 pcs (depends on complexity)
- Sample Policy:
- Standard items: Free samples (customer pays shipping)
- Custom items: Sample fee (deductible from bulk orders)
- Sample Lead Time:
- Existing tooling: 24 hours + shipping
- New tooling: 3-5 business days
- Tooling Costs:
- Simple dies: $110-275/set
- Complex tooling: Quoted based on CAD design
Technical Specifications
- Dimensional Tolerance:
- Standard: ±0.1mm
- Precision: ±0.05mm (+20% surcharge)
- Material Options: Available upon request. Contact us for details.
- Surface Finishes:
- Plating: Zinc/Nickel (48-96 hours salt spray resistance)
- Specialty: Dacromet (1000+ hours corrosion resistance)
Quality Assurance
- Production Monitoring: Real-time workshop video access & Daily progress reports.
- Quality Issue Resolution: 48-hour response guarantee & Priority replacement shipping.
- Audit Compliance: Accepts SGS audits (Requires 2-week advance notice).
Commercial Terms
- Payment Terms:
- New clients: 30% deposit, 70% before shipment
- Approved accounts: O/A 30 days
- Production Capacity:
- Base capacity: 15M pcs/month
- Maximum capacity: 20M pcs/month (with advance notice)
- Toll Processing: Accepted (material certificates required, 3% material overage required).
Logistics & Support
- Expedited Orders: 48-hour rush service (+15% fee) & Priority stock allocation.
- Export Documentation: Commercial Invoice, Packing List, Certificate of Origin.
- Quality Certificates: Dimensional inspection report, Salt spray test results, Material composition analysis.
Value-Added Services
- Packaging Options: Carton packaging, Pallet packaging, Bulk packaging.
- Damage Claims: Required documents: Damage photos at destination & Carrier inspection report (Processed within 72 hours).
- Insurance Coverage: $700,000 product liability per incident & Global coverage.
Contact Us
We'd love to hear from you! Whether you have questions about our products, need assistance with an order, or just want to say hello, please don't hesitate to reach out.
