S-90128A798 5/8"-11 x 1 1/2" ASTM A574 Alloy Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 170,000 PSI for reliable performance in high-stress industrial and construction applications
• Superior corrosion resistance with zinc-plated alloy steel construction, extending service life in demanding environments
• Precision Class 3A thread fit ensures secure fastening and vibration resistance in critical assemblies
• Coarse UNC threading provides faster installation and reduced cross-threading risks in field applications
• Hex socket drive design allows high torque application and access in confined spaces
• Full threading along 1-1/2" length offers maximum adjustment flexibility and load distribution
• Rockwell C37 hardness maintains structural integrity under repeated loading and extreme conditions

Professional Applications & Engineering Value

This 5/8"-11 UNC socket head cap screw delivers critical engineering solutions where standard fasteners fail. The zinc-plated alloy steel construction provides essential corrosion protection for outdoor equipment, machinery frames, and structural connections exposed to weather or chemicals. The coarse UNC thread design prevents binding in materials prone to debris accumulation, while the Class 3A thread fit maintains precise alignment in high-vibration environments like power transmission systems and heavy machinery. With 170,000 PSI tensile strength, these socket head cap screws securely fasten critical joints in construction equipment, manufacturing fixtures, and automotive assemblies where failure is not an option. The combination of fully threaded design and hex drive enables both deep engagement and high clamping force application.

Specification Summary & Compliance

This fastener features 5/8"-11 UNC coarse threads with precision Class 3A fit for superior engagement. Manufacturing complies with ASTM A574 specification for socket head cap screws, ensuring consistent quality and performance. The product meets RoHS 3 (2015/863/EU) compliance for hazardous substance restrictions and REACH (EC 1907/2006) regulations for chemical safety. Dimensions include 1-1/2" length, 15/16" head diameter, and 1/2" hex drive size for standardized tool compatibility across industrial applications.