S-90332A113 4-40 x 3/8" High-Profile Socket Head Screws
High-Profile Socket 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 18-8 stainless steel construction, ideal for harsh industrial environments
- Superior thread engagement and reliability due to Class 3A thread fit, minimizing the risk of loosening
- High tensile strength of 70,000 psi ensures dependable performance under heavy loads and stress
- Rockwell B84 hardness provides excellent wear resistance and long-term durability
- Secure hex drive (3/32") allows for high torque application and prevents stripping
- Fully threaded design offers consistent holding power along the entire 3/8" length
- Compliance with RoHS 3 and REACH regulations ensures safe, environmentally responsible use in global markets
Professional Applications & Engineering Value
This 4-40 UNC Socket Head Cap Screw is engineered to address critical challenges in precision assembly and machinery. The 18-8 Stainless Steel material provides excellent resistance to rust and oxidation, making it suitable for applications in moist or chemically aggressive settings, such as marine equipment, food processing machinery, and outdoor enclosures. The Class 3A thread fit and coarse UNC threading ensure rapid assembly with minimal cross-threading risk, reducing installation time and improving production efficiency. Its high socket head profile and 3/32" hex drive accommodate standard tools for secure fastening in confined spaces, commonly used in aerospace components, automotive systems, and electronic device chassis where vibration resistance and reliability are paramount.
Specification Summary & Compliance
This fastener features a 4-40 UNC coarse thread with Class 3A precision tolerance for consistent fit. Dimensions include a 3/8" length, 0.183" head diameter, and 0.168" head height. It is manufactured from 18-8 Stainless Steel with a tensile strength of 70,000 psi and hardness of Rockwell B84. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to international environmental and safety standards.
