S-92210A190 8-32 x 1/4" 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 passivated finish for extended service life in harsh environments
• Exceptional mechanical strength delivering 70,000 psi tensile strength and Rockwell B55 hardness for reliable, high-stress applications
• Precision Class 3A thread fit ensures secure, vibration-resistant fastening with minimal risk of loosening
• Efficient hex drive design (3/32") provides superior torque transmission and prevents cam-out during installation
• Optimal flush mounting with 82° countersink angle and standard flat head profile for seamless surface integration
• Full threading capability offers maximum grip length and uniform load distribution across connected materials
• Regulatory compliance assurance meeting ASME B18.3 standards with RoHS 3 and REACH environmental directives

Professional Applications & Engineering Value

These 8-32 UNC flat head screws provide critical solutions for industrial assembly challenges where corrosion resistance and high tensile strength are paramount. The combination of 18-8 stainless steel material and passivated surface treatment creates a durable barrier against chemical exposure and atmospheric corrosion, making them ideal for machinery, electronic enclosures, and outdoor equipment. The coarse thread spacing and Class 3A thread fit ensure rapid installation with exceptional holding power in various substrates, while the hex drive design prevents stripping during high-torque applications. The 82° countersink angle facilitates perfect flush mounting in precision-machined components, eliminating protrusions that could interfere with moving parts or aesthetic requirements.

Specification Summary & Compliance

Manufactured to exact inch system dimensions with UNC thread form and Class 3A thread fit tolerance for precision alignment. These fully threaded fasteners comply with ASME B18.3 manufacturing specifications and demonstrate conformity with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets.