S-91773A094 3-48 x 3/8" ASME B18.6.3 Stainless Steel Round Head Phillips 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 mechanical strength delivering 100,000 psi tensile strength for reliable load-bearing performance
• Optimized thread engagement with coarse UNC threads and Class 2A fit ensuring secure fastening in various materials
• Enhanced drive stability through No. 1 Phillips drive design reducing cam-out during installation
• Full-threaded design providing maximum grip length and uniform stress distribution
• Consistent dimensional accuracy maintaining precise 3/8" length and 0.187" head diameter for repeatable assembly
• Regulatory compliance assurance meeting ASME B18.6.3 standards and environmental regulations

Professional Applications & Engineering Value

This 3-48 UNC rounded head Phillips screw delivers critical performance advantages in demanding industrial applications where corrosion resistance and mechanical reliability are paramount. The 18-8 stainless steel composition, enhanced by passivated finish, provides exceptional protection against oxidation and chemical exposure in manufacturing, electronics assembly, and outdoor equipment. The coarse thread configuration ensures rapid installation and superior holding power in softer materials and sheet metal, while the fully threaded design maximizes engagement depth for vibration-resistant connections. Engineered with Class 2A thread fit and standardized dimensions, these industrial screws maintain consistent performance across high-volume production runs, reducing assembly time and improving manufacturing efficiency.

Specification Summary & Compliance

This fastener features precision 3-48 UNC coarse threads with Class 2A thread fit tolerance, ensuring reliable engagement and interchangeability. Manufacturing complies with ASME B18.6.3 specifications for dimensional consistency and performance standards. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting current environmental regulations for hazardous substance restrictions. Mechanical properties include 100,000 psi tensile strength and Rockwell B100 hardness for durable performance in demanding applications.