S-90124A339 5/8"-11 x 2 1/2" ASME B18.2.1, SAE J429 Steel Wire-Lockable Hex Head Screws

Key Features & Benefits at a Glance

• Enhanced corrosion resistance with black-oxide steel coating, ideal for demanding industrial environments
• Superior load-bearing capacity with 120,000 psi tensile strength, ensuring reliable performance under high stress
• Excellent durability from Rockwell C25 hardness, maintaining structural integrity through repeated use
• Secure fastening with UNC coarse threads and Class 2A fit, providing vibration resistance and easy installation
• Versatile partial threading allowing for precise clamping force control in various assembly applications
• Industry-standard compliance with ASME B18.2.1 and RoHS 3, guaranteeing quality and environmental safety
• Optimized wire locking design for additional security in high-vibration machinery and equipment

Professional Applications & Engineering Value

Engineered for heavy-duty industrial applications, these Grade 5 hex head screws deliver exceptional performance in construction, machinery assembly, and automotive sectors. The black-oxide steel finish provides superior corrosion protection, extending service life in harsh conditions. With UNC coarse threads and partial threading, they offer rapid installation and precise tension control, reducing assembly time while preventing loosening under dynamic loads. The external hex drive ensures high torque capability, making them ideal for applications requiring reliable fastening solutions where vibration resistance and structural integrity are critical.

Specification Summary & Compliance

This 5/8"-11 hex head screw features precise Class 2A thread fit with UNC coarse threading and 2 1/2" length. Manufactured to ASME B18.2.1 specifications (referencing SAE J429 Grade 5) with full compliance to RoHS 3 (2015/863/EU) environmental standards. The inch-system fastener maintains dimensional accuracy for consistent performance across industrial applications.