S-91781A827 10-32 x 3/8" ASME B18.6.3 Stainless Steel Slotted Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and passivated finish for extended service life in harsh environments
• Precise flush mounting enabled by the 82° countersink angle and flat head design for seamless surface integration
• Exceptional mechanical strength delivering 80,000 psi tensile strength and Rockwell B80 hardness for high-stress applications
• Reliable thread engagement with Class 2A fit and UNF fine threading ensuring vibration resistance and secure fastening
• Industry-standard compatibility meeting ASME B18.6.3 specifications for consistent performance and interchangeability
• Full-threaded design providing maximum grip length and load distribution across the entire fastener
• Environmental compliance with RoHS 3 and REACH regulations for safe use in regulated industries

Professional Applications & Engineering Value

These 10-32 UNF flat head slotted screws deliver critical performance advantages in precision assemblies where surface flushness and corrosion resistance are paramount. The combination of 18-8 stainless steel material and passivated finish creates a robust barrier against chemical exposure and atmospheric corrosion, significantly extending maintenance intervals in industrial equipment, marine components, and food processing machinery. The fine UNF threading with Class 2A fit ensures superior vibration resistance compared to coarse thread alternatives, preventing loosening in dynamic applications. The standardized 82° countersink angle and slotted drive provide reliable installation in confined spaces while maintaining clean aesthetic lines. These fully threaded fasteners distribute clamp load evenly, making them ideal for securing thin materials and electronic enclosures where joint integrity is critical.

Specification Summary & Compliance

Manufactured to exacting ASME B18.6.3 standards with Class 2A thread fit tolerance for consistent dimensional accuracy. Features 10-32 UNF fine threads with right-hand direction and complete threading along the 3/8" length. The 0.362" head diameter and standard flat head profile ensure proper countersinking. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for restricted substance control.