S-90585A200 4-40 x 1/4" 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 316 Stainless Steel material and passivated finish, ideal for harsh industrial environments and extended service life.
- Exceptional tensile strength of 70,000 psi ensures reliable performance under high-stress applications, reducing the risk of fastener failure.
- Precise Class 3A thread fit provides tighter tolerances for secure, vibration-resistant assemblies in critical engineering applications.
- Hex drive design with 1/16" drive size allows for easy installation and removal, minimizing tool slippage and improving assembly efficiency.
- Fully threaded UNC coarse spacing enables faster driving and stronger holding power in various materials, streamlining production processes.
- 82° countersink angle and flat head profile ensure a flush, clean finish when installed, enhancing aesthetic and functional integration.
- Compliance with ASME B18.3, RoHS 3, and REACH guarantees adherence to industry standards and environmental regulations, supporting sustainable procurement.
Professional Applications & Engineering Value
This 4-40 UNC flat head screw in 316 Stainless Steel with a passivated finish addresses common industrial challenges such as corrosion in marine, chemical, and outdoor settings. The hex drive and coarse thread spacing facilitate quick, secure fastening in assemblies requiring high vibration resistance, while the Class 3A thread fit ensures precision in industrial applications like machinery, electronics, and automotive components. Its fully threaded design and 82° countersink angle provide consistent clamping force and a seamless surface, reducing maintenance needs and improving overall durability in demanding environments.
Specification Summary & Compliance
This product features precise dimensional tolerances, including a Class 3A thread fit per UNC standards, and adheres to ASME B18.3 manufacturing specifications. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and reliability for global industrial use.
