S-91900A917 10-32 x 3/16" ASME B18.3 Tamper-Resistant Torx Stainless Steel Button Head Screws

Key Features & Benefits at a Glance

• Enhanced tamper resistance with specialized Torx T25 drive prevents unauthorized access in high-security applications
• Superior corrosion resistance through 18-8 stainless steel construction and passivated finish for extended service life in harsh environments
• Precise thread engagement with Class 3A UNF fine threads ensuring reliable fastening in critical assemblies
• Maximum load distribution from rounded button head design reducing surface pressure and material stress
• High mechanical strength delivering 70,000 psi tensile strength and Rockwell B70 hardness for demanding industrial applications
• Full-threaded construction providing consistent clamping force along the entire 3/16" length
• Regulatory compliance meeting ASME B18.3 standards and environmental regulations for global deployment

Professional Applications & Engineering Value

This 10-32 UNF Class 3A rounded head screw addresses critical engineering challenges in security-sensitive and corrosive environments. The tamper-resistant Torx T25 drive provides controlled access while preventing vandalism in public infrastructure, medical equipment, and transportation systems. Manufactured from 18-8 stainless steel with passivated finish, it delivers exceptional resistance to oxidation and chemical exposure in marine, chemical processing, and outdoor applications. The UNF fine thread configuration ensures superior vibration resistance and precise torque control in machinery, electronic enclosures, and precision instruments where Class 3A thread fit guarantees consistent performance. The combination of 70,000 psi tensile strength and full threading provides reliable fastening in high-stress applications while maintaining corrosion resistance throughout the fastener's service life.

Specification Summary & Compliance

This security fastener maintains Class 3A thread fit tolerance for precision assembly with 10-32 UNF fine threads in right-hand orientation. Manufacturing complies with ASME B18.3 specifications for dimensional accuracy and performance standards. The screw meets RoHS 3 (2015/863/EU) compliance for hazardous substance restrictions and REACH (EC 1907/2006) regulations for chemical safety, ensuring environmental responsibility and global market acceptance.