S-91375A253 10-24 x 2 1/2" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Superior holding power with Class 3A thread fit for reliable, vibration-resistant fastening in demanding applications.
• Enhanced corrosion resistance provided by the black-oxide finish on alloy steel, extending service life in various industrial environments.
• High-strength durability from Rockwell C45 hardness, ensuring the screw maintains its integrity under high stress and repeated use.
• Secure and easy installation with the hex drive (3/32") and headless design, allowing for flush mounting and precise torque application.
• Effective grip and alignment thanks to the cup point tip, which bites into surfaces to prevent component slippage and rotation.
• Broad compatibility with UNC coarse threads (10-24 size), facilitating quick assembly and disassembly in standard industrial equipment.
• Regulatory peace of mind by meeting ASME B18.3, ASTM F912, RoHS 3, and REACH standards, ensuring safety and environmental compliance.

Professional Applications & Engineering Value

This 10-24 UNC set screw is engineered to address critical challenges in industrial assembly, such as securing rotating components and preventing axial movement in machinery. The black-oxide alloy steel construction offers excellent resistance to rust and wear, making it ideal for automotive, aerospace, and heavy equipment applications where exposure to harsh conditions is common. Its cup point design ensures a firm bite into shafts and hubs, reducing the risk of loosening under vibration—a common pain point in dynamic systems. With a 2 1/2" length and coarse thread spacing, it provides ample engagement for robust connections, while the hex drive allows for efficient installation in tight spaces. This screw delivers reliable performance in set screw applications, enhancing operational safety and reducing maintenance downtime.

Specification Summary & Compliance

This set screw adheres to precise dimensional standards, including Class 3A thread fit for tight tolerances and consistent performance. It conforms to ASME B18.3 and ASTM F912 specifications, ensuring manufacturing quality and interoperability. Additionally, it is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting environmental safety and restricted substance management in industrial supply chains.