S-90044A284 1-64 x 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 under high-stress conditions, reducing the risk of fastener failure in demanding applications.
• Superior corrosion resistance from the black-oxide finish on alloy steel, extending service life in harsh industrial environments.
• Precise Class 3A thread fit provides tight, secure fastening with minimal play, enhancing assembly accuracy and vibration resistance.
• Fully threaded design offers consistent holding power along the entire 1/2" length, ideal for applications requiring uniform clamp load.
• Hex socket drive (1/16") allows for high-torque installation with standard tools, minimizing stripping and improving installation efficiency.
• Rockwell C37 hardness ensures excellent wear resistance and durability, maintaining thread integrity through repeated use.
• Compliance with ASTM A574, RoHS 3, and REACH guarantees material quality and environmental safety, meeting strict industry and regulatory standards.

Professional Applications & Engineering Value

This black-oxide alloy steel socket head cap screw with a 1-64 UNC coarse thread is engineered to address critical challenges in precision assemblies, such as machinery, automotive components, and electronic enclosures. The right-hand thread and Class 3A fit ensure rapid, secure fastening with high resistance to loosening under vibration, a common issue in dynamic industrial settings. The fully threaded rod type distributes clamping force evenly, preventing joint failure in high-load applications. Made from alloy steel with a black-oxide surface treatment, it combats corrosion and wear, extending maintenance intervals. Its hex drive style and standard socket head profile facilitate easy installation in confined spaces, reducing assembly time and improving productivity for B2B users in manufacturing and maintenance.

Specification Summary & Compliance

This screw features a 1-64 UNC coarse thread with a Class 3A thread fit for precise dimensional accuracy, ensuring compatibility with standard nuts and tapped holes. It adheres to ASTM A574 specifications for high-strength alloy steel socket head cap screws, guaranteeing consistent material properties and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free from hazardous substances and safe for various industrial applications. Thread direction is right-hand, with a fully threaded design and measurements in the inch system for broad usability.