S-99355A148 8-32 x 3/4" ASME B18.3 Tamper-Resistant Asymmetrical-Drive Stainless Steel Button Head Screws
Tamper-Resistant Asymmetrical-Drive Stainless Steel Button 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 18-8 Stainless Steel construction, ideal for harsh environments and long-term reliability.
- Exceptional mechanical strength offering 70,000 psi tensile strength and Rockwell B70 hardness for demanding applications.
- Precise and reliable fastening ensured by UNC coarse threading and Class 2A fit, reducing cross-threading risks.
- Easy installation and removal with the asymmetrical U10 drive and rounded button head design.
- Full thread engagement along the 3/4" length for maximum grip and load distribution.
- Compliance with industry standards including ASME B18.3, ensuring consistent quality and interchangeability.
- Environmentally responsible manufacturing with RoHS 3 and REACH compliance, meeting global regulatory requirements.
Professional Applications & Engineering Value
Engineered for industrial and heavy-duty applications, these 18-8 Stainless Steel rounded head screws provide outstanding corrosion resistance and durability in challenging environments such as machinery, automotive assemblies, and outdoor equipment. The UNC coarse thread and Class 2A fit ensure quick, secure fastening with reduced risk of stripping, while the fully threaded design maximizes holding power across the entire 3/4" length. With a tensile strength of 70,000 psi and Rockwell B70 hardness, they withstand high stress and vibration, making them ideal for critical fastening tasks where reliability is paramount. The asymmetrical U10 drive and rounded button head offer easy access and a low-profile finish, enhancing both functionality and aesthetics in professional settings.
Specification Summary & Compliance
This screw features precision UNC coarse threading with a Class 2A fit for consistent dimensional accuracy. It complies with ASME B18.3 specifications and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring safe and sustainable use in various industries.
