S-90128A314 8-32 x 9/16" ASME B18.3, ASTM A574 Alloy Steel Socket Head Screws

Key Features & Benefits at a Glance

• Superior tensile strength (170,000 psi) ensures reliable performance under high-stress conditions, reducing failure risks in demanding applications
• Precision Class 3A thread fit provides consistent engagement and vibration resistance, minimizing loosening in dynamic environments
• Zinc-plated alloy steel construction offers excellent corrosion resistance for extended service life in harsh industrial settings
• Hex socket drive design enables high-torque installation with secure tool engagement and reduced head stripping
• Fully threaded body allows maximum adjustment flexibility and uniform load distribution along the entire fastener length
• Rockwell C37 hardness rating maintains dimensional stability and thread integrity through repeated installation cycles
• Coarse UNC thread spacing facilitates quicker assembly and reduces cross-threading incidents in production environments

Professional Applications & Engineering Value

These socket head cap screws with 8-32 UNC threads deliver exceptional engineering value in precision assembly applications where space constraints and high clamp loads are critical. The zinc-plated alloy steel construction addresses corrosion concerns in manufacturing equipment, automotive components, and machinery frames, while the hex drive socket head profile enables installation in confined spaces where traditional wrenches cannot access. The Class 3A thread fit ensures precise mating with tapped holes, eliminating play in vibration-prone assemblies. With their fully threaded design and 170,000 psi tensile strength, these fasteners provide reliable performance in structural applications requiring consistent clamping force across the entire engagement length, making them ideal for critical joints in industrial machinery, automation systems, and precision equipment manufacturing.

Specification Summary & Compliance

This 9/16" length socket head cap screw features precision 8-32 UNC coarse threads with Class 3A fit for superior thread engagement. Manufactured to ASME B18.3 specifications using ASTM A574 alloy steel material. The fastener meets RoHS 3 (2015/863/EU) compliance for restricted substances and REACH (EC 1907/2006) regulations regarding chemical safety. Right-hand thread direction with standard socket head profile ensures compatibility with industry-standard hex key tools.