S-92210A457 5/8"-18 x 1 1/2" ASME B18.3 Stainless Steel Hex Drive Flat Head Screws
Stainless Steel Hex Drive Flat 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 and passivated finish, ideal for harsh industrial environments
- Exceptional mechanical strength delivering 70,000 psi tensile strength and Rockwell B55 hardness for reliable, long-term performance
- Precise thread engagement with Class 3A fit and UNF fine threads, ensuring vibration resistance and secure fastening
- Efficient installation and removal using the 3/8" hex drive, providing superior torque transfer and reduced tool slippage
- Optimal flush mounting with standard 82° countersink angle and flat head design for smooth surface finishes
- Full threading along the 1-1/2" length for maximum grip and load distribution across the entire fastener
- Compliance with major industry standards including ASME B18.3, RoHS 3, and REACH for guaranteed quality and environmental safety
Professional Applications & Engineering Value
This 5/8"-18 UNF flat head screw is engineered to address critical challenges in industrial assembly and machinery. The 18-8 stainless steel material, combined with a passivated finish, provides excellent resistance to oxidation and chemical exposure, making it suitable for applications in marine, chemical processing, and food equipment industries. The Class 3A thread fit and fine thread spacing enhance vibration resistance, preventing loosening under dynamic loads. With a hex drive design, it allows for high-torque installation in confined spaces, reducing assembly time and improving workflow efficiency. Fully threaded and built to ASME B18.3 specifications, this screw ensures consistent performance in high-stress environments, from heavy-duty machinery to structural frameworks.
Specification Summary & Compliance
This product adheres to Class 3A thread fit tolerances and UNF (Unified National Fine) thread standards, ensuring precise dimensional accuracy. It is manufactured in compliance with ASME B18.3 specifications and is fully RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, meeting stringent environmental and safety regulations for industrial use.
