S-97763A328 6-32 x 3/4" ASME B18.3 Stainless Steel Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to Black-Oxide coated 18-8 Stainless Steel, ensuring long-term reliability in harsh environments.
• Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B55 hardness for demanding industrial applications.
• Precise and secure fastening achieved with Class 3A thread fit and UNC coarse threading, reducing the risk of cross-threading and loosening.
• Efficient installation and removal enabled by the 5/64" hex drive and rounded button head design, allowing for easy access with standard tools.
• Full-length threading provides consistent grip and holding power along the entire 3/4" length for versatile mounting scenarios.
• Compliance with major standards including ASME B18.3, RoHS 3, and REACH, ensuring quality, safety, and environmental responsibility.
• Durable, wear-resistant surface from the Black-Oxide finish, which also reduces light reflection and minimizes galling during assembly.

Professional Applications & Engineering Value

This 6-32 UNC thread screw is engineered to address critical challenges in industrial and mechanical assemblies where corrosion resistance, high tensile strength, and precision threading are paramount. The Black-Oxide 18-8 Stainless Steel construction provides excellent protection against rust and chemical exposure, making it ideal for outdoor equipment, marine hardware, and electronic enclosures. The coarse thread spacing and Class 3A thread fit ensure rapid installation and a secure hold in materials like aluminum and soft metals, reducing assembly time and preventing thread stripping. With a rounded button head and hex drive, it offers a low-profile, aesthetically pleasing finish while enabling high-torque application without slippage. These features collectively enhance durability and operational reliability in demanding settings such as machinery, automotive components, and precision instruments.

Specification Summary & Compliance

This screw adheres to Class 3A thread fit tolerances for superior precision and meets ASME B18.3 specifications for dimensional consistency. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring it is free from hazardous substances. The UNC coarse thread and fully threaded design provide reliable performance across various applications, backed by a 70,000 psi tensile strength and Rockwell B55 hardness for enduring mechanical integrity.