S-94355A735 3/8"-24 x 7/8" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and long-term reliability.
• Exceptional thread engagement and vibration resistance provided by the Class 3A UNF fine thread fit, minimizing loosening in dynamic applications.
• High-torque installation capability from the internal hex drive, allowing for secure tightening without a protruding head.
• Reliable surface contact and component positioning using the flat tip design, preventing damage to shafts and secured parts.
• Enhanced mechanical strength and durability with a Rockwell B80 hardness, ensuring the set screw maintains its form under stress.
• Broad industry acceptance and interchangeability by conforming to the ASME B18.3 standard for dimensional consistency.
• Safe for regulated industries with full compliance to RoHS 3 and REACH environmental directives.

Professional Applications & Engineering Value

This 3/8"-24 UNF Class 3A set screw is engineered to address critical challenges in precision assembly and motion control systems. The 18-8 stainless steel material offers excellent resistance to oxidation and chemical exposure, making it suitable for industrial applications in manufacturing, automotive, and marine sectors where moisture or corrosive agents are present. The fine thread and Class 3A thread fit provide a tighter tolerance, reducing the risk of backlash and improving holding force in pulleys, gears, and collars. The headless and hex drive design allows for flush mounting in confined spaces, while the flat tip ensures uniform pressure distribution without marring surfaces. By meeting ASME B18.3 specifications, this screw delivers consistent performance and simplifies sourcing for maintenance and OEM projects.

Specification Summary & Compliance

This set screw features a 3/8"-24 UNF thread with a Class 3A fit for high precision, a length of 7/8", and a flat tip. It is manufactured from 18-8 stainless steel with a hardness of Rockwell B80. The product conforms to ASME B18.3 dimensional standards and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free of restricted substances for safe use in various markets.