S-90696A166 3-56 x 1" ASME B18.3 18-8 Stainless Steel Socket Head Screws
18-8 Stainless Steel 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
- Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh environments and long-term reliability.
- Exceptional thread engagement and vibration resistance due to the Class 3A UNF fine thread fit, ensuring secure fastening in precision assemblies.
- High tensile strength of 70,000 psi combined with Rockwell B70 hardness provides reliable performance under heavy loads and stress.
- Secure and efficient installation with a 5/64" hex drive and standard socket head, allowing for high torque application and reduced risk of stripping.
- Versatile partial threading offers a non-threaded shoulder for precise component positioning and alignment.
- Compliance with ASME B18.3 guarantees dimensional accuracy and interchangeability, reducing procurement risks.
- Environmental and safety compliance with RoHS 3 and REACH standards, ensuring safe use in regulated industries.
Professional Applications & Engineering Value
This 3-56 UNF Socket Head Cap Screw is engineered to address critical challenges in precision machinery, electronics, and automotive assemblies where space constraints and vibration are concerns. The 18-8 Stainless Steel material offers excellent corrosion resistance, reducing maintenance in humid or chemically aggressive environments. The fine UNF thread and Class 3A fit provide superior holding power and minimize loosening under dynamic loads, while the partially threaded design allows for accurate clamping without damaging sensitive components. With a 5/64" hex drive, it ensures easy installation in tight spaces, making it a reliable choice for OEMs and MRO applications requiring durable, high-performance socket head cap screws.
Specification Summary & Compliance
This screw features a 3-56 UNF fine thread with Class 3A thread fit for high precision, a length of 1", and a minimum thread length of 5/8". It is manufactured in accordance with ASME B18.3 specifications, ensuring dimensional consistency. The product is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), meeting environmental and safety standards for industrial use.
