S-98164A111 6-32 x 1/2" 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 chemical and marine environments
- Enhanced durability and strength with 70,000 psi tensile strength and Rockwell B55 hardness for reliable performance under stress
- Precise thread engagement with Class 3A fit and UNC coarse threads ensuring secure, vibration-resistant fastening
- Easy installation and removal using a standard 5/64" hex drive, reducing assembly time and tool wear
- Full threading for maximum grip along the entire 1/2" length, providing superior holding power in various materials
- Compliance with industry standards including ASME B18.3 and ASTM F879, ensuring consistent quality and interchangeability
- Environmentally safe manufacturing with RoHS 3 and REACH compliance, meeting global regulatory requirements
Professional Applications & Engineering Value
This 316 stainless steel rounded head screw with 6-32 UNC coarse thread and Class 3A precision fit is engineered to address critical industrial challenges, such as corrosion in chemical processing, marine, and outdoor equipment. The passivated finish enhances surface integrity, preventing pitting and extending service life in aggressive environments. Its fully threaded design and 70,000 psi tensile strength ensure reliable fastening in high-vibration applications like machinery assembly and electronic enclosures. The hex drive allows for efficient torque application, reducing installation errors. Ideal for industrial screws in OEM and MRO settings, it combines material excellence with dimensional accuracy to minimize downtime and maintenance costs.
Specification Summary & Compliance
This screw adheres to Class 3A thread fit for precise tolerance, with UNC coarse threads and a diameter of 0.138". It meets ASME B18.3 and ASTM F879 specifications for dimensional consistency and performance. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), it ensures environmental safety and regulatory adherence in global supply chains.
