S-92210A587 5/16"-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 with 70,000 psi tensile strength and Rockwell B55 hardness for reliable, long-lasting fastening
- Precise Class 3A thread fit ensures secure engagement and vibration resistance in demanding applications
- Optimized torque transmission through hex drive design prevents stripping and enables high installation efficiency
- Standard 82° countersink angle provides flush mounting for clean, professional finishes
- Full threading along 1½" length offers maximum grip range and installation flexibility
- Comprehensive regulatory compliance meets ASME B18.3, RoHS 3, and REACH standards for global acceptance
Professional Applications & Engineering Value
This 18-8 stainless steel flat head screw delivers critical performance advantages for industrial applications where corrosion resistance and structural integrity are paramount. The combination of 5/16-18 UNC coarse threading with Class 3A thread fit provides superior vibration resistance and reliable engagement in metal assemblies, machinery, and structural frameworks. The hex drive design enables high-torque installation without cam-out, while the passivated finish significantly enhances corrosion protection in demanding environments. These flat head screws are engineered to solve common fastening challenges including material degradation, joint loosening, and installation inefficiency, making them ideal for manufacturing equipment, transportation systems, and industrial machinery where durability and reliability are non-negotiable.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 3A thread fit and UNC coarse threading (5/16-18) in the inch system. This fully threaded flat head screw features a standard 82° countersink angle and complies with ASME B18.3 manufacturing specifications. The product meets RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and global market acceptance for industrial applications.
