S-90289A711 1/2"-13 x 3/4" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide coating, extending service life in harsh industrial environments.
• Exceptional holding power provided by Class 3A thread fit, ensuring tight, vibration-resistant connections.
• Easy and secure installation with 1/4" hex drive, allowing high torque application without slippage.
• Enhanced durability from Rockwell C45 hardness, resisting wear and deformation under heavy loads.
• Reliable locking performance due to serrations and cup point design, preventing loosening in dynamic applications.
• Broad compatibility with coarse UNC threads, facilitating quick assembly and disassembly in various machinery.
• Compliance with industry standards including ASME B18.3, RoHS, and REACH, ensuring safety and environmental responsibility.

Professional Applications & Engineering Value

This black-oxide alloy steel set screw is engineered to address critical challenges in industrial settings, such as vibration-induced loosening and corrosion. The Class 3A thread fit and coarse UNC threads deliver precise engagement and high clamping force, ideal for securing components in heavy machinery, automotive assemblies, and construction equipment. The headless design with hex drive allows for flush mounting in confined spaces, while the cup point and serrations enhance grip on shafts and gears, reducing maintenance needs. Made from alloy steel with Rockwell C45 hardness, it withstands extreme stresses, ensuring long-term reliability in demanding applications like manufacturing and aerospace.

Specification Summary & Compliance

This set screw features a 1/2"-13 UNC coarse thread with Class 3A fit for tight tolerances and optimal performance. It adheres to ASME B18.3 manufacturing standards and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material integrity for global industrial use.