S-90128A118 6-32 x 1/8" ASTM A574 Alloy Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 170,000 PSI ensures reliable performance under high-stress conditions, reducing the risk of fastener failure in demanding applications.
• Superior corrosion resistance from zinc plating extends service life and maintains integrity in harsh or humid industrial environments.
• Precise Class 3A thread fit provides tight, secure connections with minimal backlash, enhancing assembly accuracy and vibration resistance.
• High hardness rating (Rockwell C37) offers excellent wear resistance, maintaining thread integrity through repeated installation and removal cycles.
• Standard hex drive design allows for easy installation with common tools, streamlining assembly processes and reducing labor time.
• Full threading along the entire 1/8" length maximizes grip and load distribution across the entire fastened joint.
• Compliance with major industry standards including ASTM A574 ensures consistent quality and reliability for engineering applications.

Professional Applications & Engineering Value

These 6-32 UNC thread socket head cap screws deliver critical engineering value through their zinc-plated alloy steel construction, specifically designed to address common industrial fastening challenges. The combination of 170,000 PSI tensile strength and Rockwell C37 hardness makes them ideal for applications requiring reliable performance under vibration, thermal cycling, and heavy loads. The coarse thread spacing and Class 3A thread fit ensure quick assembly with superior resistance to loosening, while the corrosion-resistant zinc plating protects against degradation in manufacturing, automotive, and machinery environments. These socket head screws provide dependable fastening solutions for precision equipment, enclosures, and structural components where failure is not an option.

Specification Summary & Compliance

These screws feature 6-32 UNC coarse threads with Class 3A precision tolerance for consistent fit and performance. Manufactured to ASTM A574 specifications for socket head cap screws, they ensure dimensional accuracy and mechanical properties. The products are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming they meet strict environmental and safety standards for industrial use worldwide.