S-91571A288 3/4"-10 x 1 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 load-bearing capacity with 120,000 psi tensile strength for reliable performance in high-stress applications
• Superior hardness and durability with Rockwell C19 rating to resist wear and deformation under heavy loads
• Quick installation and removal with external hex drive and coarse UNC threads that reduce assembly time
• Precise thread engagement with Class 2A fit ensuring consistent fastening and vibration resistance
• Full thread coverage along the 1 3/4" length for maximum grip and uniform stress distribution
• Compliance with major industry standards including ASME B18.2.6, ASTM A325, and ASTM F3125 for guaranteed quality
• Environmentally responsible manufacturing with RoHS 3 and REACH compliance for safe use in regulated industries

Professional Applications & Engineering Value

Engineered for heavy-duty industrial applications, these Grade A325 hex head screws deliver critical reliability in structural steel connections, machinery assembly, and construction projects. The high-strength steel construction combined with coarse UNC threading provides superior resistance to loosening under dynamic loads and vibration. The external hex drive design allows for high torque application, ensuring secure fastening in demanding environments where joint integrity is paramount. These fully threaded fasteners distribute stress evenly across the entire length, preventing localized failure points in critical connections.

Specification Summary & Compliance

This 3/4"-10 hex head screw features Class 2A thread fit per UNC standards with precise dimensional accuracy. Manufactured to meet ASME B18.2.6, ASTM A325, and ASTM F3125 specifications for structural bolting applications. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors.