S-91236A866 3/4"-10 x 10" ASME B18.2.1, ASTM A307 Low-Strength Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with 60,000 psi tensile strength for reliable performance in demanding applications
• Superior corrosion resistance through zinc plating that protects against rust and extends service life
• Optimized torque transmission with external hex drive and 1 1/8" head width for secure installation
• Enhanced installation efficiency with coarse UNC threads and Class 2A fit ensuring smooth engagement
• Reduced material costs through partial threading design that minimizes unnecessary thread length
• Industry-standard compatibility meeting ASME B18.2.1 and ASTM A307 specifications for guaranteed interchangeability
• Environmental compliance assurance with RoHS 3 and REACH compliance for responsible manufacturing standards

Professional Applications & Engineering Value

This heavy-duty hex head screw delivers critical engineering solutions for structural applications requiring high tensile strength and reliable fastening. The steel construction with Rockwell B69 hardness provides optimal durability against shear forces and vibration, while the zinc plating offers essential corrosion protection in industrial environments. The 3/4"-10 UNC coarse thread configuration ensures rapid installation in structural steel, heavy machinery, and construction frameworks, reducing assembly time without compromising joint integrity. The partial threading design concentrates strength where needed most, making it ideal for applications requiring precise clamp load distribution. These industrial hex screws are engineered to maintain performance under continuous stress, solving common challenges of joint failure and maintenance downtime in heavy equipment and structural assemblies.

Specification Summary & Compliance

Manufactured to precise Class 2A thread fit tolerances with UNC coarse thread specifications ensuring consistent performance. Complies with ASME B18.2.1 dimensional standards and ASTM A307 material specifications for mechanical properties. Meets environmental regulations including RoHS 3 (2015/863/EU) compliance for hazardous substance restrictions and REACH (EC 1907/2006) compliance for chemical safety. Thread specifications include right-hand direction, 0.75" diameter, and minimum 5 3/4" thread length with partial threading configuration.