S-97763A361 3/8"-16 x 3/4" ASME B18.3 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 Black-Oxide coated 18-8 Stainless Steel, ideal for harsh environments and reducing maintenance costs.
- Superior holding power from 70,000 psi tensile strength and Rockwell B55 hardness, ensuring reliable performance under high stress.
- Precise, secure fastening with Class 3A thread fit and UNC coarse spacing, minimizing the risk of loosening in demanding applications.
- Easy installation and removal using a standard 7/32" hex drive, saving time and labor during assembly.
- Full thread engagement along the entire 3/4" length for maximum grip and uniform load distribution.
- Compliance with industry standards including ASME B18.3, RoHS 3, and REACH, ensuring safety and regulatory adherence.
- Low-profile rounded button head design provides a smooth finish, reducing snagging and improving aesthetic appeal.
Professional Applications & Engineering Value
These Black-Oxide 18-8 Stainless Steel Rounded Head Screws are engineered to address critical industrial challenges, such as corrosion in humid or chemical-laden settings. The Black-Oxide coating enhances surface durability and minimizes oxidation, while the UNC coarse threads and Class 3A fit deliver superior resistance to vibration and shock, preventing joint failure in machinery, automotive assemblies, and structural frameworks. With a hex drive for efficient torque application and full threading for consistent clamping force, they reduce installation errors and maintenance downtime, making them a reliable choice for OEMs and maintenance teams seeking long-term, corrosion-resistant fastening solutions.
Specification Summary & Compliance
This screw features a 3/8"-16 UNC thread with Class 3A precision fit and coarse spacing for robust engagement. Dimensions include a 0.656" head diameter, 0.199" head height, and 3/4" length, fully threaded. It meets ASME B18.3 manufacturing standards and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and industrial reliability.
