S-90289A242 10-24 x 1/2" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior holding power with Class 3A thread fit and serrations locking for maximum resistance to vibration and loosening in demanding applications.
• Exceptional durability and corrosion resistance provided by the black-oxide finish on alloy steel, extending the screw's service life in various industrial environments.
• High-strength performance ensured by Rockwell C45 hardness, offering reliable fastening under significant mechanical stress.
• Easy and secure installation with the 3/32" hex drive and headless design, allowing for flush mounting and access in confined spaces.
• Wide compatibility and precise engagement due to the 10-24 UNC coarse thread, facilitating quick assembly and strong holding in a range of materials.
• Enhanced grip and minimal surface damage from the cup tip, which concentrates force for secure fastening without excessive marring.
• Compliance with major industry standards including ASME B18.3, RoHS 3, and REACH, ensuring safety, quality, and environmental responsibility for global supply chains.

Professional Applications & Engineering Value

This 10-24 UNC set screw is engineered to address critical challenges in precision assemblies where space is limited and vibration resistance is paramount. The headless design and hex drive allow for seamless integration into tight spaces, while the black-oxide alloy steel construction provides excellent corrosion resistance, reducing maintenance needs in harsh conditions. The Class 3A thread fit and serrations locking mechanism work together to prevent accidental loosening, making it ideal for high-stress applications in machinery, automotive, and electronics. By combining coarse UNC threads for quick installation and a cup tip for focused clamping force, this set screw ensures reliable performance in securing collars, gears, and pulleys, enhancing overall assembly integrity and operational safety.

Specification Summary & Compliance

This set screw adheres to precise dimensional standards with a Class 3A thread fit for superior accuracy and a 10-24 UNC coarse thread profile. It is manufactured in compliance with ASME B18.3 specifications, ensuring consistent quality and interoperability. Additionally, the product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its environmental and safety compliance for use in various industrial and international markets.