S-98164A134 8-32 x 3/8" 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 and passivated finish, ideal for harsh environments
- High tensile strength of 70,000 psi ensures reliable performance under heavy loads and vibration
- Precise Class 3A thread fit provides secure fastening with reduced risk of cross-threading
- Hex drive design (3/32") allows for easy installation and high torque application without slippage
- Rounded button head profile offers a low-profile, aesthetically clean finish while minimizing snagging
- Full UNC coarse threading enables faster assembly and better grip in a wide range of materials
- Compliance with ASME B18.3 and ASTM F879 guarantees consistent quality and interchangeability
Professional Applications & Engineering Value
Engineered for demanding industrial settings, these 316 stainless steel rounded head screws address critical challenges in corrosive or high-moisture applications. The passivated finish enhances the natural corrosion resistance of the material, making them suitable for chemical processing, marine equipment, and food-grade machinery where exposure to chlorides or acids is common. The UNC coarse thread and Class 3A fit ensure rapid, secure fastening in soft metals or plastics, reducing assembly time while maintaining joint integrity. With a hex drive and fully threaded design, they provide excellent clamp load distribution and are easy to install in confined spaces, offering long-term reliability and reduced maintenance costs.
Specification Summary & Compliance
This screw meets ASME B18.3 and ASTM F879 specifications, ensuring dimensional accuracy and performance consistency. Threads conform to UNC coarse profile with Class 3A fit for precise engagement. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of restricted hazardous substances and supporting environmental and safety standards in global supply chains.
