S-92949A279 10-32 x 3" ASME B18.3 Stainless Steel Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and passivated finish, ideal for harsh industrial environments
• Exceptional thread precision with Class 3A UNF fine threads ensuring reliable, vibration-resistant connections in critical assemblies
• High mechanical strength delivering 70,000 psi tensile strength and Rockwell B55 hardness for demanding load-bearing applications
• Easy installation and removal with 1/8" hex drive and rounded button head design, reducing assembly time and tool wear
• Full threading along 3" length provides maximum grip and adjustment flexibility in deep or variable material thicknesses
• Compliance with major standards including ASME B18.3 for dimensional accuracy and RoHS/REACH for environmental safety
• Right-hand fine thread configuration offers superior clamping force and resistance to loosening under dynamic loads

Professional Applications & Engineering Value

These 10-32 UNF rounded head screws are engineered for precision applications where material integrity and thread reliability are paramount. The 18-8 stainless steel base combined with a passivated finish effectively resists oxidation and chemical degradation, making them suitable for aerospace, medical equipment, and marine components exposed to corrosive agents. The Class 3A thread fit and fine thread spacing ensure minimal backlash and secure fastening in high-vibration environments, while the fully threaded design accommodates varying material depths without compromising holding power. Their 70,000 psi tensile strength supports structural assemblies requiring repeated disassembly, reducing replacement frequency and maintenance costs in industrial machinery and electronic enclosures.

Specification Summary & Compliance

This rounded head screw features a 10-32 UNF thread with Class 3A tolerance for precision fit, fully threaded along a 3" length. Manufacturing adheres to ASME B18.3 specifications for dimensional consistency. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting stringent environmental regulations for hazardous substance restrictions.