S-97595A589 5/8"-11 x 2" ASME B18.3 Brass Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance through high-quality brass construction, ideal for harsh industrial environments
• Exceptional mechanical strength with 50,000 psi tensile rating and Rockwell B55 hardness for heavy-duty applications
• Precision thread engagement with Class 3A fit and UNC coarse threading ensuring reliable fastening performance
• Secure installation via 3/8" hex drive that prevents cam-out and provides maximum torque transfer
• Optimal flush mounting with standard 82° countersink angle and flat head design for clean surface finishes
• Regulatory compliance meeting ASME B18.3 specifications and environmental standards including RoHS 3 and REACH
• Versatile partial threading allowing precise clamping force control across various material thicknesses

Professional Applications & Engineering Value

This brass flat head screw with 5/8"-11 UNC coarse threading delivers critical performance advantages in demanding industrial settings. The combination of 50,000 psi tensile strength and Rockwell B55 hardness provides exceptional durability against vibration loosening and mechanical stress. The hex drive design ensures secure installation without stripping, while the partial threading allows engineers to optimize grip length for specific assembly requirements. Particularly valuable in marine, electrical, and plumbing applications, the corrosion-resistant brass construction maintains integrity in moist or chemically aggressive environments, significantly reducing maintenance cycles and replacement costs.

Specification Summary & Compliance

Manufactured to exacting ASME B18.3 standards, this fastener features Class 3A thread fit for precision tolerance and reliable engagement. The UNC coarse thread profile (5/8"-11) with partial threading up to 1½" minimum thread length ensures optimal performance in various materials. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations confirms environmental responsibility, while the standardized 82° countersink angle guarantees proper seating in matched components.