S-91772A099 3-48 x 3/4" ASME B18.6.3 Stainless Steel Pan Head Phillips Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with passivated 18-8 stainless steel construction, ideal for harsh industrial environments
• Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B70 hardness for reliable load-bearing performance
• Precise thread engagement through Class 2A thread fit and UNC coarse threading, ensuring secure fastening in various materials
• Optimized drive efficiency with No. 1 Phillips drive design, providing excellent torque transmission and reduced cam-out risk
• Full-length threading for maximum grip and uniform stress distribution across the entire fastener length
• Compliant with major industrial standards including ASME B18.6.3, RoHS 3, and REACH for guaranteed quality and safety
• Versatile pan head design with rounded profile for smooth surface contact and professional appearance

Professional Applications & Engineering Value

These 3-48 UNC pan head Phillips screws deliver critical performance advantages in demanding industrial applications. The passivated 18-8 stainless steel construction provides exceptional resistance to corrosion and oxidation, making them ideal for machinery, electronic enclosures, and outdoor equipment where environmental exposure is a concern. The combination of 70,000 psi tensile strength and Rockwell B70 hardness ensures reliable performance under vibration and dynamic loads, while the Class 2A thread fit with coarse UNC threading offers quick assembly and secure fastening in both metallic and non-metallic materials. The No. 1 Phillips drive facilitates efficient installation with standard tools, reducing assembly time and improving production efficiency across manufacturing, automotive, and electrical industries.

Specification Summary & Compliance

These rounded head screws feature precise 3-48 UNC coarse threads with Class 2A thread fit tolerance for consistent performance. Manufacturing complies with ASME B18.6.3 specifications for dimensional accuracy and mechanical properties. The fasteners are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring they meet current industry standards for hazardous substance restrictions and chemical safety requirements.