S-90272A319 3-48 x 7/16" ASME B18.6.3 Steel Pan Head Phillips Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding environments
• Excellent holding power with fully threaded design ensuring maximum engagement and vibration resistance
• High tensile strength rating of 60,000 psi provides reliable performance under substantial mechanical loads
• Precision Class 2A thread fit guarantees consistent installation and optimal fastener performance
• Quick installation with Phillips No. 1 drive design that prevents cam-out and reduces assembly time
• Standardized dimensions with rounded pan head profile for consistent seating and professional appearance
• Regulatory compliance meeting ASME B18.6.3 specifications and environmental standards including RoHS 3 and REACH

Professional Applications & Engineering Value

These 3-48 UNC zinc-plated steel rounded head screws deliver exceptional engineering value across industrial applications where corrosion resistance and high tensile strength are critical. The coarse thread design provides superior holding power in softer materials and faster installation times, while the Rockwell B70 hardness ensures durability against wear and deformation. The fully threaded configuration maximizes surface contact area, preventing loosening under vibration - a common challenge in machinery, electronics assembly, and automotive components. The zinc plating creates a protective barrier against moisture and chemicals, extending service life in harsh operating conditions while maintaining ASME B18.6.3 compliance for quality assurance.

Specification Summary & Compliance

These rounded head screws feature precise 3-48 UNC coarse threads with Class 2A thread fit tolerance for consistent installation performance. Manufacturing adheres to ASME B18.6.3 specifications ensuring dimensional accuracy and reliability. The fasteners are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming they contain no restricted hazardous substances. With a 7/16" length and 0.193" head diameter, these screws maintain standardized dimensions for compatibility across industrial applications requiring reliable machine screw solutions.