S-90585A116 2-56 x 5/16" ASME B18.3, ASTM F879 Stainless Steel Hex Drive Flat Head Screws
Stainless Steel Hex Drive Flat 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
- Superior corrosion resistance in harsh environments due to 316 stainless steel construction with passivated finish
- High tensile strength of 70,000 psi ensures reliable performance under significant mechanical stress
- Precise Class 3A thread fit provides excellent engagement and vibration resistance in assembled components
- Hex drive design (0.050") allows for secure tool engagement and efficient installation in confined spaces
- Fully threaded UNC coarse spacing enables faster installation and superior holding power in various materials
- 82° flat head profile creates a flush surface finish for streamlined assemblies and aesthetic applications
- Compliance with major industry standards including ASME B18.3, RoHS 3, and REACH for global market acceptance
Professional Applications & Engineering Value
These 316 stainless steel flat head screws deliver exceptional engineering value in demanding industrial environments where corrosion resistance and mechanical reliability are paramount. The combination of Rockwell B55 hardness and 70,000 psi tensile strength ensures these fully threaded fasteners maintain structural integrity under continuous stress and vibration. The UNC coarse thread spacing provides rapid installation in manufacturing processes while the Class 3A thread fit guarantees precise mating with corresponding components. Particularly valuable in marine, chemical processing, and food equipment applications, these hex drive screws with passivated finish offer extended service life while meeting critical industry specifications for safety and performance.
Specification Summary & Compliance
Manufactured to exacting dimensional standards with Class 3A thread fit tolerance and UNC coarse thread specifications. These flat head screws comply with ASME B18.3 mechanical and dimensional requirements, ensuring interchangeability and reliability across industrial applications. The products are fully compliant with RoHS 3 (2015/863/EU) restrictions on hazardous substances and REACH (EC 1907/2006) regulations for chemical safety, making them suitable for global distribution and use in regulated industries.
