S-90128A716 1/2"-13 x 1 1/2" ASTM A574 Alloy Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 170,000 psi provides reliable performance in high-stress applications, reducing the risk of fastener failure.
• Zinc-plated alloy steel construction offers superior corrosion resistance, extending service life in demanding industrial environments.
• Class 3A thread fit ensures precise, vibration-resistant connections for improved assembly integrity and reduced maintenance needs.
• Fully threaded design allows for maximum grip and uniform load distribution across the entire length of the screw.
• Hex socket drive enables high-torque installation with minimal risk of stripping, facilitating efficient assembly and disassembly.
• Rockwell C37 hardness provides excellent wear resistance, maintaining thread integrity through repeated use.
• Compliance with ASTM A574, RoHS 3, and REACH standards guarantees material quality and environmental safety for global industrial applications.

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these 1/2"-13 UNC socket head cap screws deliver critical performance advantages in machinery assembly, automotive components, and heavy equipment manufacturing. The zinc-plated alloy steel construction provides essential corrosion protection in harsh environments, while the coarse UNC thread design ensures rapid installation and superior resistance to vibration loosening. With their fully threaded configuration and Class 3A fit, these screws maintain consistent clamping force across the entire engagement length, solving common challenges of joint relaxation and stress concentration. The hex drive socket head profile allows for high-torque applications where space constraints limit tool access, making them ideal for precision assemblies requiring reliable fastening solutions.

Specification Summary & Compliance

This socket head cap screw features precision 1/2"-13 UNC coarse threads with Class 3A fit for superior thread engagement and dimensional accuracy. Manufactured to ASTM A574 specification for alloy steel socket head cap screws, ensuring consistent material properties and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, meeting international standards for hazardous substance restrictions and chemical safety in industrial applications.