S-91583A184 3/4"-10 x 3 1/2" 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 corrosion resistance with hot-dipped galvanized steel coating for long-lasting performance in harsh environments
• Superior structural integrity with Grade A325 classification and 120,000 psi tensile strength for heavy-duty applications
• Reliable installation and removal with external hex drive and 1 1/4" head width for optimal torque transmission
• Enhanced vibration resistance with UNC coarse threading that maintains secure connections under dynamic loads
• Precise load distribution through partially threaded design with 2 1/8" grip length for controlled clamping force
• Industry-standard compatibility with Class 2A thread fit ensuring consistent performance across applications
• Comprehensive regulatory compliance meeting RoHS 3 and REACH environmental standards for global usage

Professional Applications & Engineering Value

Engineered for structural applications where failure is not an option, these Grade A325 hex head screws deliver exceptional performance in demanding environments. The hot-dipped galvanized steel construction provides superior corrosion protection, making them ideal for outdoor structures, bridges, and industrial facilities exposed to weather elements. The partially threaded design with UNC coarse threading ensures optimal stress distribution while preventing loosening under vibration - a critical consideration for construction and heavy machinery applications. With Rockwell C19 hardness and precise Class 2A thread fit, these fasteners maintain dimensional stability under extreme loads, offering engineers reliable solutions for structural connections that require both high tensile strength and long-term durability in corrosive environments.

Specification Summary & Compliance

This 3/4"-10 hex head screw features precise Class 2A thread fit with UNC coarse threading and partial threading configuration. Manufactured to exacting standards including ASME B18.2.6, ASTM A325, and ASTM F3125 specifications. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe usage across global markets while maintaining the mechanical properties required for structural applications.