S-90780A809 5/8"-11 x 2 1/2" ASTM F468, MIL-S-1222 Nickel Alloy Hex Head Screws
Nickel Alloy Hex Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Exceptional corrosion resistance with 400 Nickel material, ideal for harsh industrial environments and extended service life.
- High tensile strength of 80,000 psi ensures reliable performance under heavy loads and demanding applications.
- Rockwell B80 hardness provides excellent durability and resistance to wear and deformation.
- Coarse UNC thread with Class 2A fit allows for faster assembly and secure fastening in various materials.
- External hex drive design offers easy installation and removal with standard tools, reducing labor time.
- Partially threaded shank provides optimal grip and clamping force where full threading isn't required.
- Compliance with ASTM F468, RoHS 3, and REACH ensures material quality and environmental safety for global projects.
Professional Applications & Engineering Value
This 5/8"-11 UNC hex head screw is engineered with 400 Nickel construction to address critical challenges in industrial settings, such as corrosion in marine, chemical, or outdoor applications. The coarse thread and Class 2A thread fit facilitate quick, secure installations in structural assemblies, machinery, and heavy equipment, reducing the risk of cross-threading. Its partially threaded design concentrates clamping force effectively, preventing joint loosening under vibration. With a high tensile strength of 80,000 psi and Rockwell B80 hardness, it withstands extreme mechanical stresses, making it a reliable choice for construction, automotive, and aerospace sectors where durability and compliance with ASTM F468 standards are paramount.
Specification Summary & Compliance
This screw features precise Class 2A thread fit per UNC standards, ensuring consistent engagement and tolerance. It meets ASTM F468 specifications for nonferrous bolts and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free from hazardous substances. The product aligns with MIL-S-1222 requirements, supporting use in military and high-reliability applications.
