S-90272A426 3/8"-16 x 3" ASME B18.6.3 Steel Pan Head Phillips Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, extending service life in demanding industrial environments
• Exceptional tensile strength rated at 60,000 psi ensures reliable performance under heavy loads and vibration
• Optimized thread engagement with UNC coarse spacing and Class 2A fit provides faster installation and superior holding power
• Enhanced drive stability through Phillips No. 4 drive design reduces cam-out during high-torque applications
• Full threading along 3" length maximizes fastening contact area for uniform stress distribution
• Consistent hardness profile at Rockwell B70 maintains structural integrity through repeated use cycles
• Regulatory compliance assurance meets ASME B18.6.3 manufacturing standards while satisfying RoHS 3 and REACH environmental directives

Professional Applications & Engineering Value

These zinc-plated steel rounded head screws deliver critical performance advantages in industrial assembly applications where corrosion resistance and high clamp loads are paramount. The combination of UNC coarse threads and Class 2A thread fit ensures rapid installation in sheet metal, machinery frames, and structural components while maintaining vibration resistance. The pan head profile with Phillips drive provides a low-profile fastening solution that distributes bearing stress effectively. With full threading across the entire 3" length, these screws eliminate the need for washers in many applications while providing consistent engagement in materials ranging from 1/4" to 1" thickness. The 60,000 psi tensile strength makes them suitable for high-stress applications in construction equipment, transportation infrastructure, and heavy machinery where joint integrity cannot be compromised.

Specification Summary & Compliance

Manufactured to ASME B18.6.3 specifications with Class 2A thread tolerances ensuring interchangeability and proper fit. The UNC 3/8"-16 coarse thread configuration provides optimal performance in most industrial materials. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations guarantees these fasteners meet international safety standards for hazardous substances. The zinc plating offers consistent corrosion protection while maintaining the Rockwell B70 hardness and mechanical properties required for demanding applications.