S-98164A544 1/2"-13 x 3" 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
- Exceptional corrosion resistance with 316 stainless steel construction, ideal for harsh chemical and marine environments
- Superior mechanical strength delivering 70,000 psi tensile strength and Rockwell B55 hardness for heavy-duty applications
- Enhanced durability through passivated surface finish that increases resistance to rust and wear
- Precise thread engagement with Class 3A thread fit ensuring reliable fastening in critical assemblies
- Quick installation and removal via 5/16" hex drive that prevents tool slippage and reduces assembly time
- Full threading capability providing consistent grip along the entire 3" length for maximum holding power
- Regulatory compliance meeting both industry standards and environmental regulations for global project acceptance
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these 316 stainless steel rounded head screws solve critical challenges in corrosive environments where fastener failure is not an option. The combination of UNC coarse threading and Class 3A thread fit ensures rapid installation while maintaining vibration resistance in machinery, processing equipment, and structural assemblies. The passivated finish provides an additional protective layer against chemical exposure, making these hex drive screws ideal for chemical processing plants, marine hardware, and food processing equipment where both corrosion resistance and high tensile strength are paramount. The button head design offers a low-profile solution that reduces snagging while distributing clamp load effectively.
Specification Summary & Compliance
These 1/2"-13 x 3" screws feature UNC coarse threads with Class 3A thread fit for precision engagement and are manufactured to ASME B18.3 specifications. The fully threaded design maintains consistent performance along the entire length. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and global market acceptance for your projects.
