S-90128A125 8-32 x 5/16" ASTM A574 Alloy Steel Socket Head Screws
Alloy Steel Socket 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 170,000 PSI ensures reliable performance under high-stress conditions, reducing the risk of fastener failure.
- Class 3A thread fit provides precise, tight tolerances for superior assembly accuracy and vibration resistance in demanding applications.
- Zinc-plated alloy steel construction offers excellent corrosion resistance, extending service life in harsh industrial environments.
- Rockwell C37 hardness delivers enhanced durability and wear resistance, maintaining thread integrity through repeated use.
- Coarse UNC threading allows for quicker installation and reduced cross-threading risks, improving assembly efficiency.
- Fully threaded design ensures consistent clamping force along the entire length, ideal for secure fastening in various materials.
- Compliance with ASTM A574, RoHS 3, and REACH guarantees adherence to rigorous quality and environmental standards for global industrial use.
Professional Applications & Engineering Value
This 8-32 UNC thread socket head cap screw is engineered to address critical industrial challenges, such as vibration loosening and corrosion-induced failure. The zinc-plated alloy steel material, combined with a Class 3A thread fit, ensures secure fastening in machinery, automotive assemblies, and electronic enclosures where precision and reliability are paramount. The coarse thread design facilitates faster installation in tough materials, reducing labor time while the high tensile strength withstands dynamic loads. Ideal for OEM and MRO applications, these screws provide long-term performance in environments exposed to moisture, chemicals, and mechanical stress, minimizing maintenance needs and downtime.
Specification Summary & Compliance
This screw features precise Class 3A thread fit per UNC standards, with a coarse thread spacing and right-hand direction for consistent engagement. Dimensions include a 5/16" length, 9/64" hex drive, and fully threaded rod type. It complies with ASTM A574 manufacturing specifications, ensuring high-quality alloy steel material. Additionally, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, supporting safe and sustainable industrial use.
