S-91236A675 7/16"-14 x 1 3/4" ASME B18.2.1, ASTM A307 Low-Strength Steel Hex Head Screws

Key Features & Benefits at a Glance

• Enhanced corrosion resistance with zinc plating, extending service life in demanding industrial environments
• High tensile strength of 60,000 psi provides reliable load-bearing capacity for heavy-duty applications
• Rockwell B69 hardness ensures excellent durability and resistance to deformation under stress
• Coarse UNC threads with Class 2A fit offer quick assembly and secure fastening in various materials
• External hex drive design allows for easy installation using standard tools with high torque transmission
• Partial threading provides optimal grip strength while reducing material usage and weight
• Compliance with major standards including ASME B18.2.1 and ASTM A307 ensures consistent quality and performance

Professional Applications & Engineering Value

This 7/16"-14 UNC hex head screw delivers exceptional engineering value in industrial fastening applications where reliability is paramount. The steel construction with zinc plating provides superior corrosion protection, making it ideal for outdoor equipment, machinery assemblies, and structural frameworks exposed to environmental elements. The coarse thread design ensures rapid installation in wood, metal, and composite materials while maintaining vibration resistance. With its partial threading configuration, this fastener offers concentrated clamping force where needed most, preventing joint loosening in high-vibration environments. The external hex drive accommodates standard wrenches for efficient installation in confined spaces, while the 60,000 psi tensile strength guarantees structural integrity in demanding applications across construction, manufacturing, and heavy equipment sectors.

Specification Summary & Compliance

This hex head screw features precise Class 2A thread fit with 7/16"-14 UNC coarse threads and 1 3/4" length, manufactured to ASME B18.2.1 specifications and ASTM A307 grade requirements. The fastener maintains dimensional accuracy with Rockwell B69 hardness and 60,000 psi tensile strength ratings. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmental responsibility and workplace safety standards are met for global industrial applications.