S-92949A830 10-32 x 3 1/2" ASME B18.3, ASTM F879 Stainless Steel Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel and passivated finish for long-lasting performance in harsh environments.
• Exceptional thread reliability with Class 3A fit and UNF fine threads, ensuring precise, vibration-resistant connections.
• High tensile strength of 70,000 psi and Rockwell B55 hardness for dependable load-bearing in demanding applications.
• Easy installation and removal using a standard 1/8" hex drive, reducing assembly time and tool wear.
• Fully threaded 3 1/2" length provides maximum grip and adjustability across the entire fastener.
• Low-profile rounded button head offers a smooth finish that minimizes snagging and improves safety.
• Compliance with major industry standards including ASME B18.3, RoHS 3, and REACH for guaranteed quality and safety.

Professional Applications & Engineering Value

This 10-32 UNF Class 3A rounded head screw is engineered for precision assemblies where fine thread spacing and high clamp force are critical. The 18-8 stainless steel material, enhanced by a passivated finish, resists oxidation and chemical exposure, making it ideal for electronics, aerospace, and marine equipment. The hex drive ensures secure torque application without cam-out, while the fully threaded design allows for consistent pressure distribution. Its 70,000 psi tensile strength and Rockwell B55 hardness provide reliable performance in high-stress environments, reducing the risk of fastener failure and maintenance downtime.

Specification Summary & Compliance

This screw features a 10-32 UNF thread with Class 3A tolerance for precise fit, right-hand thread direction, and fine thread spacing. It is manufactured in compliance with ASME B18.3 specifications and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring it is free from hazardous substances and safe for various industrial uses.