S-94066A199 8-32 x 1" ASME B18.6.3 Tamper-Resistant Drilled Spanner Stainless Steel Pan Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 stainless steel construction and passivated finish for long-term durability in harsh environments
• High tensile strength of 80,000 psi ensures reliable fastening under significant mechanical stress and vibration
• Rockwell B96 hardness provides superior wear resistance and maintains thread integrity through repeated use
• Drilled spanner drive design enables secure tool engagement and prevents cam-out during high-torque applications
• Class 2A thread fit with UNC coarse threading delivers easy assembly and consistent engagement across mating components
• Fully threaded 1" length maximizes grip range and provides uniform clamping force along the entire fastener
• Rounded pan head profile offers low-profile installation while maintaining excellent bearing surface

Professional Applications & Engineering Value

These 8-32 UNC rounded head screws with spanner drive are engineered to address critical fastening challenges in industrial environments. The 18-8 stainless steel construction combined with passivated finish provides exceptional resistance to corrosion, moisture, and chemical exposure, making them ideal for marine equipment, food processing machinery, and outdoor applications. The drilled spanner drive design prevents stripping and ensures positive engagement in high-vibration settings such as manufacturing equipment, automotive assemblies, and electrical enclosures. With coarse thread spacing and Class 2A thread fit, these screws facilitate quick installation while maintaining precise alignment in production lines. The combination of 80,000 psi tensile strength and Rockwell B96 hardness ensures these fasteners withstand dynamic loads without deformation, providing long-term reliability in demanding mechanical systems.

Specification Summary & Compliance

This 8-32 UNC screw features Class 2A thread fit with coarse thread spacing, manufactured to ASME B18.6.3 specifications for dimensional accuracy and performance consistency. The fastener is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors. The 1" length with full threading provides complete engagement capability, while the standardized rounded pan head profile maintains compatibility with industry-standard installation tools and procedures.