S-92210A436 5/16"-24 x 3" 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 thread precision with Class 3A fit and UNF fine threading ensures reliable, vibration-resistant connections
- High mechanical strength delivers 70,000 psi tensile strength and Rockwell B55 hardness for demanding applications
- Optimal flush mounting with standard 82° countersink angle and flat head design for seamless surface integration
- Efficient installation using 3/16" hex drive for secure torque transfer and reduced tool slippage
- Full-length threading across the 3" length provides consistent grip and load distribution
- Regulatory compliance meets ASME B18.3 standards and environmental regulations including RoHS 3 and REACH
Professional Applications & Engineering Value
This 5/16"-24 UNF flat head screw delivers critical performance in precision assemblies where vibration resistance and corrosion protection are paramount. The 18-8 stainless steel material combined with passivated finish creates a robust barrier against chemical exposure and atmospheric corrosion, extending service life in marine, chemical processing, and outdoor applications. The Class 3A thread fit with UNF fine threading maintains tight tolerances under dynamic loads, preventing loosening in machinery, automotive components, and structural frameworks. The 82° countersink angle and flat head design enable flush mounting in precision equipment while the hex drive configuration ensures reliable installation in confined spaces.
Specification Summary & Compliance
Manufactured to ASME B18.3 specifications with Class 3A thread fit precision and UNF 5/16"-24 fine threading. Features include 3" fully threaded length, 0.656" head diameter, and 82° countersink angle. Mechanical properties include 70,000 psi tensile strength and Rockwell B55 hardness. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations.
