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Taicang Jukairui Fasteners Co., Ltd
Address:215400,1098 Yinxi South Road, Taicang City, Suzhou City, Jiangsu Province, China.
Contacts:Lucas Liu
Tel:8615300686668
Website:www.tcjkr.com
Home Lengthened outer hexagon bolt

Wholesale of extended hexagon socket bolts, high-strength screws, extended screw

Release time:2020-01-16 18:44 Browse:

Here’s a detailed point-by-point description with technical specifications, manufacturing capabilities, and industry applications:   ### 1. **Comprehensive Product Portfolio**   - **Extended Hexagon Socket Bolts**:    - **Design**: Feature a hexagonal internal drive (ISO 4762/Allen bolt style) for high torque transmission, ideal for tight spaces.    - **Length Range**: Standard lengths from 50–300mm; custom extensions up to 1,000mm for ultra-deep installations (e.g., marine hulls, industrial boilers).    - **Head Types**: Flat head, countersunk head, or button head options for flush mounting.   - **High-Strength Screws (8.8 Grade)**:    - **Material**: Medium-carbon steel (C45/1045) quenched and tempered to achieve:      - Tensile strength: 800–1,000 MPa      - Yield strength: 640–800 MPa    - **Surface Treatments**:      - Zinc plating (8–18μm): 500+ hours salt spray resistance (ASTM B117).      - Black oxide, Dacromet, or PTFE coatings available for extreme environments.   - **Full vs. Half-Threaded Screws**:    - **Full-Threaded**: Threads along entire shank (ISO 4762) for maximum engagement in thin plates or through-hole applications.    - **Half-Threaded**: Unthreaded grip length (ISO 8765) reduces stress concentration in shear-loaded joints (e.g., beam connections).   ### 2. **Precision Manufacturing Capabilities**   - **Production Standards**:    - Compliant with ISO 9001:2015, ISO 4762 (socket head cap screws), and ISO 898-1 (metric fastener mechanical properties).    - Thread accuracy: 6g tolerance (external) and 6H for nuts, verified via Go/No-Go gauging.   - **Machining Techniques**:    - Cold heading for high-volume standard parts (cost-effective, high precision).    - Hot forging for large-diameter bolts (M24–M48) requiring enhanced ductility.    - CNC threading for custom pitches (e.g., inch threads, metric fine threads).   - **Quality Control**:    - 100% dimensional inspection (thread pitch, head size, length) via optical comparators.    - Destructive testing: Tensile tests, hardness tests (Rockwell C scale), and torque testing.    - Non-destructive testing: Magnetic particle inspection for surface defects.   ### 3. **Customization & Wholesale Solutions**   - **OEM/ODM Services**:    - Branded packaging (custom logos, labels) for distributors.    - Specialized designs: Non-standard thread lengths, shoulder bolts, or anti-corrosion coatings (e.g., marine-grade zinc-nickel plating).   - **Bulk Order Flexibility**:    - **Stock Sizes**: M3–M36 in metric, 1/4"–1-1/2" in inch, available for immediate shipment.    - **Lead Times**:      - Standard orders (≤5,000 pieces): 3–7 days.      - Custom orders (non-standard lengths/coatings): 3–6 weeks, depending on complexity.   - **Pricing Structure**:    - Tiered discounts for orders ≥1,000 pieces (e.g., 10% off for 10,000+ pieces).    - No minimum order quantity (MOQ) for standard products; MOQ applies to custom designs (typically 500–1,000 pieces).   ### 4. **Industry Applications**   - **Heavy Industrial**:    - Mining equipment: Conveyor systems, crushing machinery, and drill rigs.    - Energy sector: Wind turbine towers, solar panel mounts, and power plant infrastructure.   - **Construction & Infrastructure**:    - Structural steel projects: Bridges, high-rise buildings, and stadiums (compliant with EN 14399 structural bolt standards).    - Precast concrete: Anchoring systems and joint reinforcements.   - **Transportation & Automotive**:    - Commercial vehicles: Truck chassis, trailer hitches, and agricultural machinery.    - Railway: Locomotive components and rail fastening systems.   - **Aerospace & Defense (Specialized)**:    - Aircraft ground support equipment and military-grade machinery (with additional NADCAP/AS9100 certifications on request).   ### 5. **Technical Support & Compliance**   - **Engineering Resources**:    - Free CAD drawings (STEP/IGES files) for all standard and custom products.    - Joint load calculation tools to optimize bolt selection for shear, tension, or combined loads.   - **Certifications**:    - RoHS/REACH compliant for EU markets.    - CE marking for structural fasteners (EN 14399-3/4).    - ASTM A325/A490 equivalency for North American projects.   - **After-Sales Service**:    - 12-month warranty against manufacturing defects.    - Dedicated account managers for large clients, providing inventory management and just-in-time (JIT) delivery solutions.   ### 6. **Sustainability & Environmental Practices**   - **Material Recycling**: 100% recyclable steel cores; zinc plating processes use low-VOC solutions.   - **Energy Efficiency**: Solar-powered manufacturing facilities for reduced carbon footprint.   - **Waste Reduction**: Scrap metal reclamation and minimal packaging waste (reusable plastic trays for bulk orders).   ### 7. **Global Logistics & Distribution**   - **Shipping Options**:    - Sea freight: Cost-effective for large volumes (20–40 days to major ports).    - Air freight: Expedited delivery (3–5 days) for urgent orders.    - Land transport: Regional distribution via trucking networks (Europe, North America, Southeast Asia).   - **Packaging Standards**:    - Palletized shipments with moisture-resistant wrapping and edge protectors.    - Customized export packaging (e.g., fumigated wooden crates for overseas orders).  

Taicang Jukairui Fasteners Co., Ltd
Address:215400,1098 Yinxi South Road, Taicang City, Suzhou City, Jiangsu Province, China.
Contacts:Lucas Liu
Tel:8615300686668
Website:www.tcjkr.com

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