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PRODUCT
Product
Custom special Bolt Screw stainless steel a2-70 round flat head torx groove shoulder screw
Material: stainless steel
Finish: plain
Samples: Free
Standard:Non-standard , drawing or samples
Product Details
Material and Quality Assurance
Customization Options
Quality Control and Traceability
Purchasing and Logistics
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Material: Crafted from premium stainless steel (AISI 304, 316, or 316L), these screws offer exceptional corrosion resistance and durability, making them suitable for a wide range of applications, including outdoor, marine, and industrial environments.
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Quality Standards: Each batch is accompanied by a 3.1 Material Test Certificate (MTC), ensuring compliance with international standards such as ISO, ASTM, and DIN. The screws undergo rigorous salt-spray testing (ASTM B117) for a minimum of 1,000 hours, guaranteeing long-term performance.
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Optional Coatings: Available with electropolishing for enhanced surface finish and corrosion resistance, or PTFE coating for applications requiring low friction or food-grade compliance.
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Head Style: The round flat head design provides a smooth, flush finish, ideal for applications where a clean, professional appearance is required. Custom logo stamping is also available upon request.
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Torx Groove: The Torx groove drive ensures precise and secure installation, reducing the risk of cam-out and damage to the screw head. The groove can be customized in terms of width and depth to fit specific tooling requirements.
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Shoulder Design: The shoulder screw design features a smooth, cylindrical section below the head, providing a bearing surface that reduces friction and wear. The shoulder diameter and length can be customized to meet your specific needs.
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Thread Profiles: Choose from machine threads (2A/6g), self-tapping threads (AB, B, BT), wood threads, hi-lo threads, micro threads, left-hand threads, or twin-lead threads. Full-thread, partial-thread, and under-head relief configurations are also available.
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Dimensions: Available in a broad range of diameters (M1 – M30, #000 – 1") and lengths (1 mm – 250 mm). Custom tolerances can be specified to meet tight engineering requirements.
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Inspection: 100% optical inspection of the screw geometry ensures precision and consistency. A random sample undergoes tensile strength and torque-to-failure testing to verify strength and reliability.
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Certificates: Each shipment includes a 3.1 MTC, RoHS/REACH compliance certificates, and salt-spray test results. Additional documentation such as PPAP Level 3, IMDS, and FAI can be provided within 24 hours upon request.
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Traceability: Color-coded inner bags and barcode labels with your part number, batch QR code, and test coupons ensure full traceability and ease of inventory management.
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Lead Times: Prototypes can be delivered within 5 days using 3D laser cutting and thread rolling. Production orders for quantities under 50,000 pieces can be completed in 2–3 weeks after receipt of order (ARO).
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Order Flexibility: Blanket orders with locked pricing for up to 12 months are available, allowing for weekly or monthly call-offs. Vendor-managed inventory (VMI) and dock-to-stock options are also provided to streamline your supply chain.
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Packaging: Neutral white-label packaging or custom laser-marked heads are available. Export cartons with divider trays are ready for SMT pick-and-place feeders, ensuring compatibility with your assembly line processes.
