S-90604A308 2-56 x 3/4" ASME B18.6.3 Stainless Steel Pan Head Combination Phillips/Slotted Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel and passivated finish, ideal for harsh environments and extended service life.
• High tensile strength of 100,000 psi ensures reliable, durable fastening under significant mechanical stress.
• Dual Phillips/Slotted drive (No. 1) offers versatile installation options and reduces tooling requirements.
• Class 2A thread fit with UNC coarse threading provides easy assembly and consistent engagement in various materials.
• Fully threaded 3/4" length maximizes grip and load distribution across the entire fastener.
• Rockwell B100 hardness enhances wear resistance and maintains thread integrity during repeated use.
• Compliance with ASME B18.6.3, RoHS 3, and REACH guarantees quality, safety, and environmental standards for industrial procurement.

Professional Applications & Engineering Value

This 2-56 UNC Rounded Head Screw is engineered to address critical industrial challenges, such as vibration loosening and material fatigue. The 18-8 Stainless Steel construction, combined with a passivated finish, provides exceptional corrosion resistance, making it suitable for applications in marine, chemical processing, and outdoor equipment. The coarse thread spacing and Class 2A fit ensure quick, secure installation in soft metals or plastics, reducing assembly time and minimizing cross-threading risks. With a 100,000 psi tensile strength and fully threaded design, it delivers uniform clamping force, preventing joint failure in high-stress environments like machinery, enclosures, and automotive components. The versatile Phillips/Slotted drive accommodates standard tools, enhancing efficiency in maintenance and production lines.

Specification Summary & Compliance

This screw adheres to precise dimensional standards, including Class 2A thread fit and UNC coarse threading for consistent performance. It meets ASME B18.6.3 specifications for mechanical and dimensional integrity, ensuring reliability in industrial fastening. Additionally, it is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of hazardous substances and supporting sustainable procurement practices.