S-92865A889 7/8"-9 x 4" ASME B18.2.1, SAE J429 Medium-Strength Grade 5 Steel Hex Head Screws
Medium-Strength Grade 5 Steel Hex Head Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Exceptional tensile strength of 120,000 PSI ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
- Superior corrosion resistance from zinc plating extends service life and maintains integrity in harsh industrial environments.
- Coarse UNC threading provides faster assembly and disassembly, saving time and labor costs in maintenance and production.
- Full thread coverage along the 4" length ensures maximum grip and uniform load distribution for secure fastening.
- Class 2A thread fit offers consistent, reliable engagement with standard nuts, minimizing cross-threading and installation errors.
- High hardness (Rockwell C25) enhances durability and wear resistance, ideal for repetitive or high-vibration applications.
- External hex drive design allows for easy installation with common tools, improving efficiency in assembly lines.
Professional Applications & Engineering Value
Engineered for heavy-duty industrial applications, this Grade 5 hex head screw addresses critical challenges in construction, machinery, and structural assemblies. The zinc plated steel construction combats corrosion, prolonging lifespan in outdoor or humid conditions, while the coarse UNC thread ensures quick, secure fastening even in materials prone to stripping. With a 120,000 PSI tensile strength and Rockwell C25 hardness, it withstands extreme loads and vibrations, preventing loosening and maintaining joint integrity. Fully threaded and compliant with ASME B18.2.1, it delivers consistent performance in external hex drive setups, streamlining maintenance and reducing downtime.
Specification Summary & Compliance
This fastener meets Class 2A thread fit tolerances for precise engagement and adheres to ASME B18.2.1 and SAE J429 standards, ensuring dimensional accuracy and reliability. It is fully compliant with RoHS 3 (2015/863/EU) regulations, supporting environmental safety in industrial use.
