S-92703A215 4-40 x 1" ASME B18.3 Stainless Steel Torx Flat Head Screws
Stainless Steel Torx 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 from 18-8 stainless steel with passivated finish, ideal for harsh industrial environments.
- Enhanced torque transmission and reduced cam-out with Torx Plus IP8 drive, ensuring secure installation and longer tool life.
- High mechanical strength offering 60,000 psi tensile strength and Rockwell B70 hardness for reliable, long-lasting fastening.
- Precise, flush installation due to the standard 82° countersink angle and flat head design, minimizing protrusion in assembled components.
- Consistent threading performance with fully threaded UNC coarse threads and Class 2A fit, providing smooth engagement and vibration resistance.
- Broad industrial compliance meeting ASME B18.3 standards, RoHS 3, and REACH, ensuring safety and regulatory adherence.
- Time-saving assembly with right-hand coarse threads enabling quick installation in various materials.
Professional Applications & Engineering Value
This 4-40 UNC flat head screw is engineered to address common industrial challenges such as corrosion, vibration loosening, and installation precision. The 18-8 stainless steel material, combined with a passivated finish, provides excellent resistance to rust and chemicals, making it suitable for applications in machinery, electronics, and outdoor equipment. The Torx Plus IP8 drive minimizes slippage during high-torque applications, reducing wear on tools and fasteners. With a fully threaded design and coarse thread spacing, it ensures strong holding power in softer materials or where rapid assembly is critical. These screws are ideal for securing components in industrial assemblies, offering reliable performance under stress and environmental exposure.
Specification Summary & Compliance
The screw features a Class 2A thread fit per UNC standards, ensuring dimensional accuracy and interchangeability. It complies with ASME B18.3 specifications for flat head screws, guaranteeing consistent quality and performance. Additionally, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety for use in various industries without hazardous substances.
