S-91997A202 6-32 x 1" ASME B18.3 Sealing Tamper-Resistant Torx Stainless Steel Button Head Screws

Key Features & Benefits at a Glance

• Enhanced Security & Tamper Resistance with specialized Torx T10 drive that deters unauthorized access in public or high-security installations
• Superior Corrosion Protection through 18-8 stainless steel construction and passivated finish, ensuring long-term reliability in harsh environments
• High-Pressure Sealing Capability with integrated Buna-N rubber O-ring, maintaining integrity under pressures up to 1500 psi
• Precision Thread Engagement with Class 3A UNC coarse threads providing superior fit and vibration resistance in demanding applications
• Wide Temperature Compatibility from -40° to 225°F, making these screws suitable for extreme environmental conditions
• Optimized Head Design featuring rounded button profile for reduced snagging and improved aesthetic integration
• Regulatory Compliance Assurance meeting ASME B18.3 standards and environmental regulations for global industrial deployment

Professional Applications & Engineering Value

These tamper-resistant Torx rounded head screws deliver critical engineering solutions where security, sealing, and corrosion resistance intersect. The 18-8 stainless steel construction with passivated finish provides exceptional protection against chemical exposure and atmospheric corrosion, while the Buna-N rubber O-ring creates reliable fluid and gas barriers in pressurized systems. The Class 3A UNC thread fit ensures precise engagement in tapped holes, minimizing loosening from vibration in industrial machinery, electronic enclosures, and outdoor equipment. The tamper-resistant T10 drive system prevents unauthorized access in public infrastructure, transportation, and security applications, making these sealing screws ideal for maintenance-free installations requiring both environmental protection and access control.

Specification Summary & Compliance

Manufactured to exacting Class 3A thread tolerances with UNC coarse spacing for reliable performance in high-vibration environments. These rounded head screws comply with ASME B18.3 dimensional standards and feature full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. The 18-8 stainless steel material delivers 70,000 psi tensile strength with Rockwell B70 hardness, while the sealing system is rated for maximum 1500 psi pressure applications with temperature resistance from -40° to 225°F.