S-91500A310 5-40 x 1/4" ASME B18.6.3 Stainless Steel Phillips Flat Head Screws
Stainless Steel Phillips 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 construction, ideal for harsh environments and chemical exposure
- Exceptional mechanical strength offering 70,000 psi tensile strength and Rockwell B80 hardness for reliable, long-lasting fastening
- Optimal flush mounting with standard 82° countersink angle and flat head design for seamless, secure surface integration
- Effortless installation and removal facilitated by the No. 2 Phillips drive, reducing tool slippage and assembly time
- Precise and reliable threading with Class 2A UNC coarse threads ensuring consistent engagement and vibration resistance
- Full regulatory compliance meeting ASME B18.6.3 specifications and environmental standards like RoHS 3 and REACH
- Enhanced durability from passivated finish, which increases surface hardness and resistance to wear and corrosion
Professional Applications & Engineering Value
Engineered for demanding industrial settings, these 5-40 UNC flat head screws in 316 stainless steel address critical challenges like corrosion in marine, chemical processing, and food-grade applications. The fully threaded design and coarse thread spacing provide superior holding power and faster installation in various materials, reducing the risk of cross-threading. With a passivated finish, the screws offer extended service life by preventing oxidation and surface degradation. Ideal for machinery, enclosures, and structural assemblies, these Phillips drive screws ensure consistent performance under high stress, supporting efficient maintenance and reducing downtime in industrial screw applications.
Specification Summary & Compliance
This product adheres to precise dimensional standards, including Class 2A thread fit for consistent tolerance and UNC thread type with 5-40 size. It complies with ASME B18.6.3 manufacturing specifications and meets environmental regulations such as RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), ensuring safety and sustainability in global supply chains.
