S-93791A412 6-32 x 5/8" ASME B18.3 Stainless Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and black-oxide passivated finish for long-lasting performance in harsh environments
• Precise flush mounting thanks to the standard 82° countersink angle and flat head design that sits perfectly flush with surfaces
• Exceptional thread reliability with Class 3A thread fit ensuring tight, secure fastening in demanding applications
• High torque capability through the hex drive design (5/64") providing superior installation control and reduced stripping risk
• Maximum load distribution with full threading along the 5/8" length for enhanced grip strength across the entire fastener
• Proven mechanical durability with 70,000 psi tensile strength and Rockwell B55 hardness resisting deformation under stress
• Broad industrial compatibility through UNC coarse thread spacing and right-hand threading matching standard equipment requirements

Professional Applications & Engineering Value

These 6-32 UNC flat head screws deliver critical engineering solutions where surface-flush fastening and corrosion resistance are paramount. The 18-8 stainless steel core provides excellent chemical resistance while the black-oxide passivated finish adds an extra protective layer against oxidation and wear. The Class 3A thread fit ensures precise engagement in tapped holes, eliminating play in vibration-prone assemblies. With full threading along the entire 5/8" length, these screws maximize contact area for superior holding power in sheet metal, machinery, and electronic enclosures. The 82° countersink angle creates seamless surface integration, making them ideal for applications requiring aerodynamic surfaces or easy cleaning. These characteristics make these flat head screws particularly valuable in aerospace, automotive, and industrial equipment where reliability and precision are non-negotiable.

Specification Summary & Compliance

Manufactured to exacting ASME B18.3 specifications with Class 3A thread fit precision and UNC coarse thread spacing. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. Features right-hand threading, 5/8" length, and meets all dimensional requirements for industrial fastener applications.