S-95289A635 1/2"-13 x 1 1/2" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Superior holding power with Class 3A thread fit ensuring tight, secure fastening in demanding applications
• Enhanced corrosion resistance from the black oxide finish, extending service life in various industrial environments
• High-strength durability provided by alloy steel and Rockwell C45 hardness, resisting wear and deformation under heavy loads
• Secure and flush installation with the headless and hex drive design, ideal for confined spaces and preventing snagging
• Improved grip and alignment due to the extended tip design, reducing component slippage and simplifying precise positioning
• Reliable coarse threading (UNC) for faster installation and reduced cross-threading risks in assembly lines
• Broad industry compliance meeting ASME B18.3, RoHS 3, and REACH standards for quality and environmental safety

Professional Applications & Engineering Value

This 1/2"-13 UNC set screw is engineered to address critical challenges in industrial assembly, such as component shifting and vibrational loosening. The black oxide alloy steel construction provides excellent resistance to rust and wear, making it suitable for machinery, automotive, and heavy equipment applications where exposure to harsh conditions is common. The extended tip and coarse thread design ensure a firm bite into materials, enhancing grip and preventing axial movement in pulleys, gears, and collars. By combining a headless, hex drive configuration with a Class 3A thread fit, it offers precise, low-profile fastening that withstands high torque and repetitive stress, ultimately reducing maintenance downtime and improving operational reliability in industrial set screw applications.

Specification Summary & Compliance

This set screw adheres to precise dimensional standards, including a Class 3A thread fit for superior accuracy and a coarse UNC thread with 1/2"-13 size. Manufacturing conforms to ASME B18.3 specifications, ensuring consistent quality and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, guaranteeing it is free from hazardous substances and safe for use in various global markets.