S-91771A211 8-32 x 3 1/2" 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 passivated 18-8 stainless steel construction, ensuring long-term reliability in harsh environments.
- Exceptional mechanical strength with 80,000 psi tensile strength and Rockwell B80 hardness for demanding applications.
- Precise, reliable fastening thanks to Class 2A thread fit and UNC coarse threading, reducing cross-threading risks.
- Efficient installation and flush finish with a standard 82° countersink angle and Phillips No. 2 drive for secure, low-profile assemblies.
- Optimized for partial-thread applications with a 1 1/2" minimum thread length, providing strong grip where full threading isn't needed.
- Compliance with major industry standards including ASME B18.6.3, RoHS 3, and REACH, ensuring safety and regulatory adherence.
- Right-hand thread design for standard installation practices, improving assembly speed and reducing errors.
Professional Applications & Engineering Value
These 8-32 UNC flat head screws are engineered to address critical industrial fastening challenges, such as vibration resistance, environmental exposure, and the need for reliable, flush-mounted components. The passivated 18-8 stainless steel offers excellent resistance to oxidation and chemical corrosion, making these screws ideal for machinery, electrical enclosures, and outdoor equipment. The partially threaded design allows for controlled clamping force, while the Phillips drive ensures straightforward installation with common tools. By combining high tensile strength and precise Class 2A thread fit, these screws minimize the risk of stripping and ensure consistent performance in automated or manual assembly lines, enhancing productivity and reducing maintenance costs.
Specification Summary & Compliance
This screw adheres to Class 2A thread fit and UNC coarse thread standards with a right-hand direction. It meets ASME B18.6.3 specifications for dimensional accuracy and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and safe for various industrial and consumer applications.
