S-90128A414 7/16"-14 x 1 3/4" 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
• Superior corrosion resistance with zinc plating protects against rust and extends service life in harsh industrial environments
• Precise Class 3A thread fit provides tighter tolerances for secure, vibration-resistant connections in critical assemblies
• High hardness rating (Rockwell C37) maintains thread integrity and prevents stripping during repeated installation and removal
• Standard hex socket drive allows for easy installation with common tools while providing clean, flush mounting in confined spaces
• Fully threaded design offers maximum grip length and adjustment flexibility across the entire fastener length
• Coarse UNC threads enable quicker installation and better performance in materials prone to galling or cross-threading

Professional Applications & Engineering Value

This zinc-plated alloy steel socket head cap screw delivers critical performance advantages in demanding industrial applications where reliability is paramount. The combination of 170,000 PSI tensile strength and Rockwell C37 hardness ensures these fasteners withstand extreme mechanical stresses without deformation, making them ideal for heavy machinery, automotive assemblies, and structural frameworks. The Class 3A thread fit provides superior engagement with mating components, significantly reducing the risk of loosening under vibration - a common failure point in industrial equipment. The zinc plating offers essential corrosion protection for outdoor applications or environments with exposure to moisture and chemicals. With its 3/8" hex drive and UNC coarse threads, this fastener enables rapid installation while maintaining the precision required for critical connections in manufacturing, construction, and maintenance operations.

Specification Summary & Compliance

This socket head cap screw features precision 7/16"-14 UNC coarse threads with Class 3A fit for tight tolerance applications. Manufactured to ASTM A574 specification for high-strength socket head cap screws, ensuring consistent quality and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making it suitable for use in regulated industries and international markets. The fully threaded design and standardized dimensions provide reliable interchangeability with existing industrial fastening systems.