S-90604A304 2-56 x 5/16" ASME B18.6.3 Stainless Steel Pan Head Combination Phillips/Slotted Screws
Stainless Steel Pan Head Combination Phillips/Slotted 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 environments.
- Exceptional tensile strength of 100,000 psi ensures reliable, long-lasting fastening under high-stress conditions.
- Rockwell B100 hardness provides excellent durability and resistance to wear and deformation.
- Dual Phillips/Slotted drive options offer versatile installation with standard tools, reducing assembly time.
- Class 2A thread fit with UNC coarse threading guarantees precise, secure engagement and easy alignment.
- Fully threaded design maximizes grip and load distribution across the entire length for enhanced stability.
- Compliance with ASME B18.6.3, RoHS 3, and REACH ensures quality, safety, and environmental standards are met.
Professional Applications & Engineering Value
These 2-56 UNC rounded pan head screws in 18-8 stainless steel are engineered to address common industrial challenges, such as corrosion in humid or chemical-exposed settings. The passivated finish enhances surface protection, reducing maintenance needs and extending service life in applications like machinery assembly, electronics enclosures, and automotive components. With a coarse thread spacing and Class 2A thread fit, they provide quick, secure fastening that resists loosening from vibrations, making them ideal for high-reliability industrial screws and machine screws. Their fully threaded design ensures uniform stress distribution, preventing joint failure in demanding environments where consistent performance is critical.
Specification Summary & Compliance
This screw features precise Class 2A thread fit per UNC standards, with dimensions including a 5/16" length and coarse thread spacing. It meets ASME B18.6.3 manufacturing specifications and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and quality assurance for industrial use.
