S-98164A533 3/8"-16 x 7/8" ASME B18.3, ASTM F879 Stainless Steel Button Head Hex-Drive Screws
Stainless Steel Button Head Hex-Drive 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 for long-lasting performance in harsh chemical and marine environments
- Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B55 hardness to withstand heavy-duty industrial loads
- Precise thread engagement with Class 3A thread fit ensuring reliable fastening and vibration resistance in critical assemblies
- Easy installation and removal with hex drive design and coarse UNC threading for efficient maintenance operations
- Enhanced durability through passivated surface treatment that improves corrosion resistance and extends service life
- Full threading coverage along the 7/8" length provides maximum grip strength and uniform load distribution
- Regulatory compliance meeting ASME B18.3, RoHS 3, and REACH standards for quality assurance and environmental safety
Professional Applications & Engineering Value
Engineered for demanding industrial environments, these 316 stainless steel rounded head screws deliver exceptional performance where corrosion resistance is critical. The passivated finish enhances the natural corrosion-fighting properties of 316 stainless, making these hex drive screws ideal for chemical processing, marine applications, and food processing equipment where exposure to aggressive substances is common. The Class 3A thread fit with UNC coarse spacing ensures secure fastening in high-vibration environments, while the fully threaded design provides maximum engagement strength. The combination of 70,000 psi tensile strength and Rockwell B55 hardness makes these button head screws suitable for structural applications requiring both strength and corrosion resistance, solving the common industrial challenge of fastener degradation in corrosive environments.
Specification Summary & Compliance
This 3/8"-16 UNC screw features precision Class 3A thread fit with coarse thread spacing and full threading along the 7/8" length. Manufactured to ASME B18.3 specifications with 316 stainless steel material and passivated finish. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring safe use across regulated industries.
