S-90128A238 10-24 x 3 1/2" ASTM A574 Alloy Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 170,000 psi ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
• Superior corrosion resistance from 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 assemblies with minimal backlash.
• Partially threaded design allows for controlled clamping force and easier alignment in precision machinery.
• High hardness (Rockwell C37) offers excellent wear resistance, maintaining thread integrity through repeated use.
• Hex socket drive (5/32") enables high-torque installation with standard tools, preventing cam-out and head stripping.
• Compliance with ASTM A574, RoHS 3, and REACH ensures material consistency and environmental safety for global supply chains.

Professional Applications & Engineering Value

Engineered for demanding industrial settings, these 10-24 UNC Socket Head Cap Screws address critical assembly challenges. The zinc-plated alloy steel construction combats corrosion in machinery exposed to moisture or chemicals, while the coarse thread spacing facilitates quick installation and disassembly in maintenance-heavy equipment. The partially threaded shank provides a secure grip on components without over-tightening, ideal for aligning precision parts in automotive, aerospace, and heavy machinery. With a right-hand thread and standard socket head profile, these screws integrate seamlessly into existing tooling systems, reducing downtime and ensuring consistent torque application across production lines.

Specification Summary & Compliance

This screw maintains Class 3A thread fit per UNC standards, ensuring precise dimensional accuracy and interchangeability. Manufacturing adheres to ASTM A574 specifications for alloy steel socket head cap screws, guaranteeing material and mechanical properties. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of restricted hazardous substances for safe use in regulated industries.