S-90910A782 2-56 x 1/2" ASME B18.3 Stainless Steel Button Head Torx Plus Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel and Passivated finish for long-lasting performance in harsh environments
• Enhanced torque transmission via Torx Plus IP6 drive, reducing cam-out risk and tool wear during high-torque applications
• High mechanical strength with 60,000 psi tensile strength and Rockwell B55 hardness for reliable load-bearing capacity
• Precise thread engagement with Class 2A UNC coarse threads ensuring consistent fit and vibration resistance in assemblies
• Optimized head design featuring a rounded button profile for low-clearance spaces and improved aesthetic integration
• Full threading along the 1/2" length enables maximum grip and adjustment flexibility in diverse mounting scenarios
• Compliance with industry standards including ASME B18.3, RoHS 3, and REACH for guaranteed safety and regulatory adherence

Professional Applications & Engineering Value

Engineered for precision-critical assemblies, these 18-8 Stainless Steel rounded head screws address common industrial challenges such as fastener failure under stress and corrosion-induced degradation. The Torx Plus drive system (size IP6/T6) delivers exceptional torque transfer, minimizing slippage in automated or manual installations—ideal for electronics, aerospace subassemblies, and medical devices where vibration resistance is paramount. Combined with a passivated finish, the screws excel in moist or chemically aggressive settings, while the UNC coarse threading and Class 2A fit ensure rapid installation without cross-threading risks. This design synergy enhances assembly speed, reduces maintenance cycles, and extends service life in demanding B2B applications.

Specification Summary & Compliance

This product adheres to ASME B18.3 dimensional standards, with threads manufactured to UNC 2-56 size and Class 2A tolerance for consistent interchangeability. The coarse thread spacing and fully threaded 1/2" length provide reliable clamping force. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmental safety and material restrictions are met for global supply chain integration.