S-97763A233 10-32 x 1 1/4" ASME B18.3 Stainless Steel Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with Black-Oxide 18-8 Stainless Steel, ideal for harsh environments and reducing maintenance costs.
• High tensile strength of 70,000 psi ensures reliable load-bearing capacity and prevents fastener failure in demanding applications.
• Precise Class 3A thread fit delivers superior engagement and vibration resistance, minimizing loosening over time.
• Fine UNF threading provides increased clamping force and improved sealing in thin materials.
• Full threading along the 1 1/4" length allows for flexible installation depth and consistent holding power.
• Hex drive (1/8") with rounded button head enables easy installation with standard tools and a low-profile, snag-resistant finish.
• Rockwell B55 hardness offers excellent durability and wear resistance, extending the screw's service life.

Professional Applications & Engineering Value

These 10-32 UNF Class 3A screws with Black-Oxide 18-8 Stainless Steel construction address critical industrial challenges, such as corrosion in humid or chemical-exposed settings. The fine thread and Class 3A fit provide tight tolerances that resist vibration-induced loosening in machinery, automotive, and electronics assemblies. The rounded head style and hex drive facilitate quick, secure fastening in confined spaces, while the fully threaded design ensures uniform stress distribution. Ideal for applications requiring high tensile strength and regulatory compliance, these screws enhance assembly integrity and reduce long-term replacement needs.

Specification Summary & Compliance

This screw adheres to ASME B18.3 standards, with a Class 3A thread fit for precise dimensional accuracy. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety. The UNF fine thread and inch-based measurements guarantee interoperability in regulated industrial systems.