S-90128A534 5/8"-11 x 5 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-plated alloy steel extends service life in harsh industrial environments.
• Precise Class 3A thread fit guarantees tight, secure connections with minimal backlash for vibration-resistant assemblies.
• Heavy-duty 1/2" hex drive allows for high-torque installation with standard tools, speeding up assembly processes.
• Rockwell C37 hardness provides excellent wear resistance, maintaining thread integrity through repeated use.
• Coarse UNC threading enables quick installation and superior grip in a wide range of materials.
• Compliance with ASTM A574 ensures consistent quality and performance meeting industrial standards.

Professional Applications & Engineering Value

These 5/8"-11 UNC Socket Head Cap Screws deliver critical engineering solutions where high tensile strength and corrosion resistance are paramount. The zinc-plated alloy steel construction withstands demanding conditions in heavy machinery, automotive assemblies, and structural frameworks. The Class 3A thread fit and coarse UNC threading provide secure fastening in applications subject to vibration and dynamic loads, while the 1/2" hex drive accommodates high-torque installation tools for efficient assembly. Engineered to prevent stripping and maintain clamping force, these socket head cap screws are ideal for precision equipment where reliability cannot be compromised.

Specification Summary & Compliance

Manufactured to ASTM A574 specifications with Class 3A thread fit and UNC coarse thread profile. These inch system fasteners feature a 5/8"-11 thread size with right-hand thread direction and partial threading. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations ensures safe use across global markets.