S-91802A830 10-32 x 5/8" ASME B18.6.3 Stainless Steel Phillips Oval Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from passivated 18-8 stainless steel construction for extended service life in harsh environments
• Exceptional mechanical strength with 80,000 psi tensile strength and Rockwell B80 hardness for reliable load-bearing performance
• Precision thread engagement with Class 2A fit and UNF fine threads ensuring secure fastening and vibration resistance
• Optimized installation efficiency through Phillips No. 2 drive design providing positive torque transmission
• Flush mounting capability with standard oval head profile and 82° countersink angle for clean, professional finishes
• Full-threaded design maximizing grip length and distribution of clamping force along the entire 5/8" length
• Regulatory compliance assurance meeting ASME B18.6.3 specifications and environmental standards including RoHS 3 and REACH

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these 10-32 UNF flat head screws deliver critical performance advantages in machinery assembly, electronic enclosures, and precision equipment. The passivated 18-8 stainless steel construction provides exceptional resistance to oxidation and chemical exposure, while the fine thread configuration maintains secure connections in high-vibration environments. The oval head design with standard profile ensures flush mounting in countersunk holes, eliminating protrusions that could interfere with moving components. With fully threaded construction and Class 2A thread fit, these fasteners distribute clamping force evenly across the entire engagement length, preventing joint loosening and maintaining structural integrity in critical assemblies where reliability is paramount.

Specification Summary & Compliance

This 5/8" flat head screw features precision 10-32 UNF threads with Class 2A fit tolerance for consistent engagement. Manufacturing complies with ASME B18.6.3 specifications, ensuring dimensional accuracy and performance reliability. The fastener meets RoHS 3 (2015/863/EU) compliance for restricted substance control and REACH (EC 1907/2006) regulations for chemical safety. Right-hand thread direction and fine thread spacing provide standardized compatibility with UNF threaded components across industrial applications.