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China, Chinese Ruiqin D-Type Star Lock Washer and Cap Nut Set1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Fastener FittingGasket WasherD-Type Star Lock WasherCap Nut Set
Ruian Ruiqin Standard Parts Co., Ltd.
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Product Description Product Description Introducing our Push Nut and Cap Nut Retainer Fastener Set, featuring the reliable combination of a D-Type Star Lock Washer and Metal Cap Nut. This set is designed for enhanced security and long-lasting performance in various applications. The D-Type Star Lock Washer provides superior grip and resistance against loosening, while the Cap Nut ensures a smooth, protective cover for threaded fasteners. Ideal for use in machinery, automotive, and electronics industries, this durable set offers a quick, easy-to-install solution for securing components and preventing vibrations. Whether you're looking for a robust locking mechanism or a clean, finished appearance, this fastener set delivers both function and style. Product Advantages:Effective Anti-Loosening: The D-Type Star Lock Washer design provides superior anti-loosening performance, effectively preventing threaded connections from loosening due to vibrations or pressure, ensuring long-term stability.Easy Installation: The combination of the metal cap nut and lock washer allows for quick and easy installation without the need for additional tools, saving time and cost.Durability: Made from high-quality metal materials, the set offers excellent resistance to corrosion, wear, and high temperatures, making it suitable for harsh environments.Protective Function: The cap nut covers the threads, preventing exposure to dust, moisture, or other contaminants, which helps maintain the integrity of the threads and extends the product's lifespan.Wide Application: This fastener set is ideal for various industries, providing a reliable fastening solution for machinery, automotive, and electronics.Product Applications:Machinery Manufacturing: Widely used in machinery for securing components where preventing loosening of bolts and fasteners is crucial, such as in engines and transmission systems.Automotive Industry: This product can be applied in securing and protecting automotive parts, ensuring safety in vehicle systems and preventing loosening caused by vibrations.Electronics: Provides a simple and efficient solution for securing electronic components, ensuring structural integrity and preventing damage due to vibrations.Home Appliances: Suitable for use in household appliances, ensuring fasteners remain firmly in place, extending the lifespan of the equipment and improving overall safety.Construction and Industrial Equipment: Ideal for various industrial and construction machinery, ensuring long-term, stable connections and reducing the frequency of maintenance and replacements.Common Materials and Their Applications in Industrial ComponentsMaterialDescription & Applications65Mn SteelHigh carbon steel with excellent hardness and wear resistance. Commonly used for springs, tools, and automotive parts requiring high strength and durability.316 Stainless SteelAustenitic stainless steel known for its exceptional corrosion resistance, especially in marine and chemical environments. Ideal for food processing, pharmaceuticals, and marine applications.304 Stainless SteelThe most widely used stainless steel with good corrosion resistance, formability, and weldability. Commonly used in kitchen equipment, architectural applications, and chemical industries.Carbon Steel (Q235)Low-carbon steel with good weldability and strength. Widely used in construction, automotive, and manufacturing industries for structural components.Alloy Steel (4140)Medium-carbon steel alloyed with chromium and molybdenum, offering high strength and toughness. Common in manufacturing of shafts, gears, and heavy-duty machinery parts.BrassCopper-zinc alloy known for its machinability and corrosion resistance. Used in plumbing, electrical components, and decorative items.AluminumLightweight metal with good corrosion resistance, used in aerospace, automotive, and construction industries for components requiring strength-to-weight ratio.TitaniumKnown for high strength, low weight, and excellent corrosion resistance, especially in aerospace, medical implants, and high-performance applications.Surface Treatment Process Selection Guide for Steel Washers Surface TreatmentDescription & ApplicationsDacrometA chrome-free zinc coating offering excellent corrosion resistance. Suitable for automotive and industrial equipment exposed to harsh environments.Galvanizing (Zinc Plating)Zinc coating applied through electroplating or hot-dip, providing strong corrosion protection. Common in construction, outdoor machinery, and pipelines.Black Oxide (Blackening)A chemical oxidation process that creates a black, protective layer on steel. Ideal for mechanical parts, automotive components, and tools where appearance and corrosion resistance are important.Zinc-Chromate CoatingA zinc coating with added chromium for enhanced corrosion resistance. Used in aerospace, and high-performance applications.Nickel PlatingA nickel coating providing high hardness and excellent corrosion resistance, with a smooth surface. Used in electronics, precision parts, and industrial applications requiring high gloss and protection.PhosphatingA process that forms a phosphate layer on the metal surface, improving adhesion and corrosion resistance. Used in automotive and machinery applications requiring good paint adhesion.Aluminum SprayingA coating of aluminum sprayed onto steel surfaces for heat and corrosion resistance. Used in high-temperature environments like boilers and engines.PassivationA process that enhances the corrosion resistance of stainless steel or aluminum by creating a protective oxide layer. Common in food processing, pharmaceutical, and medical equipment.Coating (Polymer, Resin)A thin film of polymers (e.g., polyurethane, epoxy) applied to the surface for corrosion resistance and wear protection. Used in electronics, appliances, and architectural applications.Detailed PhotosProduct ParametersShaft (mm)M1.6M2M2.4M3M4M4.8M5M6Inner (d1, mm)1.23 - 1.461.61 - 1.842.02 - 2.252.58 - 2.813.57 - 3.84.31 - 4.534.51 - 4.745.45 - 5.7Outer (D, mm)10.610.610.610.612.412.412.416.2Height (H + 0.3 mm)33333.83.83.85Material thickness (max, mm)2.52.52.52.53334Number of slots44445666Trigger force (ca. N)200200200200400400400800 Shaft (mm)M6.35M7M8M9M9.5M10M11M12Inner (d1, mm)5.83 - 6.086.46 - 6.727.4 - 7.668.5 - 8.759 - 9.269.49 - 9.7410.5 - 10.7611.37 - 11.62Outer (D, mm)16.216.216.219.719.719.719.726Height (H + 0.3 mm)5555.95.95.95.97.5Material thickness (max, mm)4444.54.54.54.56Number of slots66666666 Shaft (mm)M12.7M13M14M15M16M17M18M19Inner (d1, mm)12.1 - 12.3612.38 - 12.6413.40 - 13.6614.43 - 14.6815.28 - 15.5316.42 - 16.6817.34 - 17.6218.4 - 18.69Outer (D, mm)262629.429.429.429.438.238.2Height (H + 0.3 mm)7.57.5999911.711.7Material thickness (max, mm)6677778.78.7Number of slots66666699 Shaft (mm)M20M21M22M23M24M25 Inner (d1, mm)19.3 - 19.6320.33 - 20.6121.37 - 21.6522.34 - 22.6223.33 - 23.6624.3 - 24.63 Outer (D, mm)38.238.238.239.84343 Height (H + 0.3 mm)11.711.711.71312.512.5 Material thickness (max, mm)8.78.78.79.59.59.5 Number of slots999999 Packaging & ShippingInner Pack: Fixed quantity per bag (typically 1000 pcs, model-dependent), sealed in heavy-duty polyethylene bags for moisture/dust protection.Outer Pack: Bags packed in 3-ply corrugated cartons with product labels and shock warnings.Reinforcement: Cartons secured with nylon strapping to prevent breakage. Bulk Shipment:Palletization: Cartons stacked on wooden pallets , wrapped with PE stretch film, corner guards and load stabilizers applied. Logistics: Secured in containers or air-ride trucks for long-distance sea/land freight. Custom Options:Customizable: Adjust bag quantities, carton sizes/printing, pallet materials upon request.Key Benefits√ Low Damage Rate: Multi-layer protection minimizes transit risks.√ Efficient Handling: Uniform packaging for automated logistics.Company ProfileWith over 20 years of specialization in washer manufacturing, we operate a 1,800+ sqm modern production facility equipped with 30+ fully automated machines (including precision stamping presses and automated production lines), delivering an annual output exceeding 200 million pieces. Our 40+ professional production team guarantees rapid prototyping and mass order fulfillment. Products are widely used in hardware, machinery, construction and other industries. We serve hundreds of domestic clients while maintaining stable supply to global markets. Ample stock available, supporting customized materials/sizes. Our AdvantagesCategoryAdvantagesProduction Capabilities- 20+ Years Expertise: Specialized in precision washer production since 2005- Scalable Capacity: 1,800+ sqm facility with 30+ automated production - Annual Output: 200 million+ pieces (consistent quality control)- Rapid Prototyping: 24-hour sample service with 3-day mass production turnaround- Flexible MOQ: Support trial orders from 500pcs to million-piece bulk ordersQuality Assurance- Precision Tolerance: ±0.1mm accuracy maintained through CNC control- 3-Stage Inspection: Full-process QC from raw materials → production → shipment- Traceability System: Batch number tracking for all productsCustomization 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 filesSupply 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 fluctuationsLogistics Services- Global Shipping: Established partnerships with DHL, FedEx, and ocean freight forwarders- Express Delivery: 48-hour dispatch for standard products- Production Transparency: Available real-time workshop video updates- Bilingual Support: Technical documentation in English/ChineseCost 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 nestingCustomer Reviews / Feedback FAQCategoryFAQProduction & Ordering 1. Minimum Order Quantity (MOQ)- Standard washers: 500 pcs- Custom designs: 5,000 pcs (depends on complexity)2. Sample Policy- Standard items: Free samples (customer pays shipping)- Custom items: Sample fee (deductible from bulk orders)3. Sample Lead Time- Existing tooling: 24 hours + shipping- New tooling: 3-5 business days4. Tooling Costs- Simple dies: $110-275/set- Complex tooling: Quoted based on CAD designTechnical Specifications 5. Dimensional Tolerance- Standard: ±0.1mm- Precision: ±0.05mm (+20% surcharge)6. Material Options 7. Surface Finishes- Plating: Zinc/Nickel (48-96 hours salt spray resistance)- Specialty: Dacromet (1000+ hours corrosion resistance)Quality Assurance 8. Production Monitoring- Real-time workshop video access- Daily progress reports9. Quality Issue Resolution- 48-hour response guarantee- Priority replacement shipping10. Audit Compliance- Accepts SGS audits- Requires 2-week advance noticeCommercial Terms 11. Payment Terms- New clients: 30% deposit, 70% before shipment- Approved accounts: O/A 30 days12. Production Capacity- Base capacity: 15M pcs/month- Maximum capacity: 20M pcs/month (with advance notice)13. Toll Processing- Accepted (material certificates required)- 3% material overage requiredLogistics & Support 14. Expedited Orders- 48-hour rush service (+15% fee)- Priority stock allocation15. Export Documentation- Commercial Invoice- Packing List- Certificate of Origin16. Quality Certificates- Dimensional inspection report- Salt spray test results- Material composition analysisValue-Added Services 17. Packaging Options- Carton packaging- Pallet packaging- Bulk packaging18. Damage ClaimsRequired documents:1. Damage photos at destination2. Carrier inspection report(Processed within 72 hours)19. Insurance Coverage- $700,000 product liability per incident- Global coverage
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