S-95362A435 1/2"-13 x 3" ASME B18.2.1, SAE J429, ASTM A354BD, MS90728-119 Mil. Spec. High-Strength Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with 150,000 psi tensile strength for reliable performance in high-stress applications
• Superior corrosion resistance provided by zinc yellow-chromate plating, extending service life in demanding environments
• Optimized torque transmission through the external hex drive design, ensuring secure installation and removal
• Enhanced durability with Rockwell C33 hardness, maintaining structural integrity under repeated stress
• Reliable thread engagement featuring UNC coarse threading and Class 2A fit for consistent fastening performance
• Industry-standard compliance meeting ASME B18.2.1, SAE J429, and ASTM A354BD specifications for quality assurance
• Environmental responsibility with REACH compliance, ensuring safe use in regulated applications

Professional Applications & Engineering Value

This Grade 8 hex head screw delivers exceptional engineering value through its high-strength steel construction and zinc yellow-chromate plating, specifically engineered to address critical industrial challenges. The partially threaded design with UNC coarse threading provides optimal clamping force distribution while resisting vibration-induced loosening in heavy machinery, structural steel connections, and industrial equipment assemblies. The combination of 150,000 psi tensile strength and Rockwell C33 hardness ensures reliable performance in applications demanding exceptional shear and tensile resistance, making it ideal for construction, manufacturing, and automotive sectors where fastener failure is not an option. The external hex drive facilitates efficient installation with standard tools, reducing assembly time while maintaining precise torque control.

Specification Summary & Compliance

This heavy-duty fastener features precise Class 2A thread fit with 1/2"-13 UNC coarse threads and 3" length, manufactured to exacting dimensional standards. The screw complies with ASME B18.2.1, SAE J429, and ASTM A354BD specifications, ensuring consistent quality and performance. Environmental compliance includes adherence to REACH regulations (EC 1907/2006), confirming the absence of restricted substances while maintaining the highest industry standards for industrial fastening applications.