S-91571A419 5/8"-11 x 4 3/4" ASME B18.2.6, ASTM A325, ASTM F3125 Medium-Strength Steel Heavy Hex Head Screws for Structural Applications

Key Features & Benefits at a Glance

• Exceptional structural integrity with Grade A325 classification and 120,000 psi tensile strength for reliable performance in demanding applications
• Superior corrosion resistance and durability through high-strength steel construction with Rockwell C19 hardness rating
• Optimized load distribution with UNC coarse threading and Class 2A thread fit ensuring secure fastening in structural connections
• Enhanced installation efficiency with external hex drive and 1 1/16" head width for straightforward torque application
• Versatile partial threading design with 1 1/4" thread length and 3 1/2" grip length for precise clamping force control
• Regulatory compliance assurance meeting ASME B18.2.6, ASTM A325, and ASTM F3125 specifications for quality and safety
• Environmental responsibility with RoHS 3 and REACH compliance for sustainable industrial use

Professional Applications & Engineering Value

Engineered for heavy-duty structural applications, these Grade A325 hex head screws deliver critical performance where failure is not an option. The high-strength steel construction combined with UNC coarse threading provides exceptional resistance to vibration loosening and structural fatigue. The partially threaded design ensures optimal clamp load distribution across connected materials, while the external hex drive facilitates efficient installation in confined spaces. These structural bolts are specifically designed to withstand extreme loads in construction, bridge building, and industrial framework applications where 120,000 psi tensile strength and reliable fastening solutions are paramount for structural integrity and safety compliance.

Specification Summary & Compliance

This 5/8"-11 hex head screw features precise Class 2A thread fit with UNC coarse threading standards, ensuring proper engagement and load distribution. Manufacturing complies with ASME B18.2.6 dimensional specifications and ASTM A325/ASTM F3125 material and performance requirements. The product maintains full compliance with RoHS 3 (2015/863/EU) restrictions on hazardous substances and REACH (EC 1907/2006) regulations, confirming environmental responsibility and workplace safety standards for industrial and construction applications.