S-91274A191 3/4"-10 x 1 3/4" ASME B18.3, ASTM A574, ASTM B117 Alloy Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength (170,000 psi) ensures reliable performance in high-stress industrial applications, reducing failure risks and maintenance costs.
• Zinc-flake-coated alloy steel construction provides superior corrosion resistance, extending service life in harsh environments and minimizing replacement frequency.
• Class 3A thread fit with UNC coarse threads delivers precise, secure fastening with reduced cross-threading and improved assembly efficiency.
• Fully threaded design allows for consistent clamping force along the entire length, enhancing joint stability in demanding mechanical setups.
• 5/8" hex drive and standard socket head profile enable easy installation with common tools, speeding up assembly while preventing stripping.
• Rockwell C37 hardness offers excellent wear resistance, maintaining thread integrity and durability under repetitive loads.
• Compliance with ASME B18.3, ASTM A574, RoHS 3, and REACH guarantees adherence to industry standards for safety, quality, and environmental regulations.

Professional Applications & Engineering Value

This 3/4"-10 UNC socket head cap screw is engineered for heavy-duty applications where reliability is critical. Made from zinc-flake-coated alloy steel, it addresses common industrial challenges like corrosion and vibration-induced loosening, making it ideal for machinery, automotive assemblies, and structural frameworks. The coarse thread design ensures quick installation and robust holding power in materials prone to stripping, while the fully threaded rod provides uniform stress distribution. With a Class 3A thread fit, it minimizes play and enhances precision in high-tolerance environments, reducing downtime and improving overall equipment efficiency. This screw is a trusted solution for engineers seeking durability and compliance in demanding settings.

Specification Summary & Compliance

This product features precise Class 3A thread fit per UNC standards, with a thread size of 3/4"-10 and coarse spacing for optimal performance. It meets ASME B18.3 and ASTM A574 specifications, ensuring dimensional accuracy and material integrity. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), it adheres to environmental and safety regulations, supporting sustainable industrial practices.