S-91500A352 6-32 x 5/8" ASME B18.6.3 Stainless Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction and passivated finish, ideal for harsh environments and extended service life
• High-strength performance delivering 70,000 psi tensile strength and Rockwell B80 hardness for reliable load-bearing in demanding applications
• Precise flush mounting with standard 82° countersink angle and flat head design, ensuring secure, unobtrusive fastening
• Easy installation and removal using common No. 2 Phillips drive, reducing assembly time and tooling requirements
• Consistent thread engagement with UNC coarse threading and Class 2A fit, providing vibration resistance and secure connections
• Full thread coverage across the 5/8" length, offering maximum grip and adjustability in various material thicknesses
• Regulatory compliance assurance meeting ASME B18.6.3 standards and environmental directives (RoHS 3, REACH) for global project suitability

Professional Applications & Engineering Value

This 6-32 UNC flat head machine screw addresses critical industrial challenges where corrosion resistance and structural integrity are paramount. Manufactured from 316 stainless steel with a passivated finish, it effectively resists chloride-induced stress corrosion cracking, making it ideal for marine, chemical processing, and food industry applications. The fully threaded design and coarse UNC threading ensure rapid installation and superior pull-out resistance in soft metals or plastics. With its flat head profile and standard 82° countersink, it provides seamless surface alignment for safety and aesthetics in machinery, enclosures, and structural assemblies where protrusions are unacceptable.

Specification Summary & Compliance

This screw maintains Class 2A thread fit per UNC standards, ensuring consistent dimensional accuracy and interchangeability. Manufacturing complies with ASME B18.6.3 specifications for machine screws. The product is RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant, confirming adherence to hazardous substance restrictions and environmental safety protocols for industrial use.