Description

ISO 4762 Socket Head Cap Screw

1. Product Overview

The ISO 4762 socket head cap screw is a fully threaded hexagon socket head fastener with metric coarse pitch thread, manufactured to Product Grade A precision standards for sizes M1.6 to M64. Its primary industrial use spans machine building, equipment assembly, die fixturing, and clamping applications where a flush-mounted, high-torque fastening solution is required. The key value proposition lies in its hexagonal recess design enabling tightening with an Allen wrench for superior torque transmission and a clean, protrusion-free surface finish. This product is strategically important in the global industrial market as it ensures universal compatibility across automotive, construction, machinery, and precision engineering sectors while delivering reliable performance under high-stress operational conditions.

2. Key Specifications & Technical Characteristics

• Material Components: Available in carbon steel (grade 8.8, 10.9), stainless steel (A2/A4 304/316), and alloy steel; surface treatments include zinc flake (Cr(VI)-free), black oxide, plain, and galvanized

• Grade/Tolerance: Product Grade A per ISO 4762:2004; mechanical grades 8.8, 10.9 available; tolerance class suitable for precision applications

• Physical Characteristics:

  • Form: Fully threaded shank with uniform diameter entire length

  • Head: Hexagonal socket (hex recess) for Allen key/hex wrench engagement

  • Thread: Metric coarse pitch thread from M1.6 to M64

  • Color: Natural steel (silver), black oxide (black), zinc-plated (gray/silver) depending on treatment

  • Available sizes: M3, M4, M5, M6, M8, M10, M12, M14, M16, M20, M24 (and up to M64)

• Packaging Options: Bulk loose packs, boxed quantities, hormone-packed for export, custom labeling per buyer specifications

• Shelf Life: Indefinite when stored in dry conditions; corrosion-resistant treatments extend service life to 480+ hours neutral salt spray (NSS)

3. Core Industrial Applications

This product performs better than alternatives (e.g., hex head caps, flat-head screws) due to its fully threaded design providing maximum grip length, hex socket enabling higher torque without slipping, and flush-mounted head eliminating protrusion hazards.

4. Competitive Advantages

• Quality Consistency: Manufactured to ISO 4762:2004 international standard ensuring dimensional uniformity and mechanical property reliability across all sizes

• Supply Reliability: Large-scale production capacity with M1.6–M64 size range available; standard sizes (M3–M24) maintained in inventory for immediate shipment

• Logistics Capability: Optimized container loading; hormone-packed for export to prevent corrosion during transit; worldwide shipping with documented HS codes

• Price Competitiveness: Bulk manufacturing economies of scale; competitive pricing for grades 8.8 and 10.9; volume discounts available

• Sustainability Benefits: Cr(VI)-free zinc flake coating compliant with ISO 10683; environmentally safe surface treatments

• Technical Support: Full dimensional tables, mechanical property certificates, and third-party inspection reports (SGS, BV) provided; engineering consultation available

This product positions as a strategic sourcing decision for enterprises requiring reliable, standardized fastening solutions with global compliance.

5. Commercial & Supply Information

• Minimum Order Quantity (MOQ): BULK 20MT (20 metric tons)

• Loading Capacity: Approximately 18–20 MT per 20-foot container (size-dependent; M3–M12: ~20 MT/container; M16–M24: ~18 MT/container)