S-91772A918 6-40 x 5/16" ASME B18.6.3 Stainless Steel Pan Head Phillips Screws
Stainless Steel Pan Head Phillips 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 passivated 18-8 stainless steel construction, ideal for harsh industrial environments.
- High tensile strength of 70,000 psi ensures reliable, long-lasting fastening under demanding loads.
- Fine UNF thread with Class 2A fit provides precise engagement and vibration resistance in machinery.
- Pan head with Phillips No. 2 drive offers easy installation and a flush, rounded profile for safety.
- Fully threaded design maximizes grip and distribution of clamping force along the entire length.
- Compliance with ASME B18.6.3, RoHS 3, and REACH guarantees quality and environmental safety for global supply chains.
- Rockwell B70 hardness enhances durability and resistance to wear in repetitive assembly applications.
Professional Applications & Engineering Value
This 6-40 UNF fine thread machine screw is engineered to address critical fastening challenges in precision assemblies, such as electronics, automotive components, and industrial machinery. The passivated 18-8 stainless steel material provides excellent resistance to oxidation and chemical exposure, reducing maintenance costs in corrosive settings. With a fully threaded pan head design and Phillips No. 2 drive, it ensures quick, secure installation and consistent torque application, minimizing the risk of stripping. The fine thread and Class 2A fit deliver superior holding power in thin materials, making it a reliable choice for applications requiring vibration resistance and dimensional stability. Ideal for B2B procurement, this screw meets rigorous standards for performance in manufacturing and maintenance operations.
Specification Summary & Compliance
This screw features a 6-40 UNF fine thread with Class 2A tolerance for precise fit, a length of 5/16 inch, and a rounded pan head. It is manufactured in accordance with ASME B18.6.3 specifications and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for international industrial use.
