S-91900A841 10-24 x 1 1/2" Tamper-Resistant Torx Stainless Steel Button Head Screws

Key Features & Benefits at a Glance

• Enhanced tamper resistance with T25 Torx drive for improved security in public or high-risk environments
• Superior corrosion resistance from 18-8 stainless steel construction and passivated finish, ideal for harsh industrial conditions
• High-strength performance with 70,000 psi tensile strength and Rockwell B70 hardness for reliable, long-lasting fastening
• Precise thread engagement with Class 3A thread fit ensuring consistent, vibration-resistant connections
• Optimized load distribution from the rounded button head design, reducing surface damage and stress concentration
• Versatile partial threading allowing unthreaded shank sections for precise clamping and alignment in assemblies
• Full regulatory compliance with RoHS 3 and REACH standards, meeting international environmental and safety requirements

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these 10-24 UNC partially threaded rounded head screws deliver exceptional value in security-critical and corrosive environments. The 18-8 stainless steel material combined with passivated finish provides outstanding resistance to oxidation and chemical exposure, making them ideal for outdoor equipment, marine hardware, and food processing machinery. The tamper-resistant T25 Torx drive prevents unauthorized access in public infrastructure, transportation, and electronic enclosures, while the Class 3A thread fit ensures precise, vibration-resistant fastening in high-stress assemblies. The partially threaded design allows the unthreaded shank to bear shear loads effectively, reducing thread wear and maintaining joint integrity in mechanical systems and structural frameworks.

Specification Summary & Compliance

This screw features a 10-24 UNC coarse thread with Class 3A thread fit for superior dimensional accuracy and engagement. Manufacturing adheres to inch system standards with a 1 1/2" length and 7/8" minimum thread length. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material restrictions are met for global industrial applications.