S-92845A333 10-32 x 5/16" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ensuring long-term reliability in harsh industrial environments.
• Exceptional thread precision with Class 3A UNF fine threads, providing tighter tolerances and more secure, vibration-resistant fastening.
• High-strength performance backed by Rockwell B80 hardness, offering excellent durability and resistance to wear under heavy loads.
• Secure, flush installation thanks to the headless hex drive design, allowing for unobtrusive mounting in confined spaces.
• Enhanced gripping power from the extended tip design, which digs deeper into mating surfaces for improved torque transmission and slippage prevention.
• Broad regulatory compliance including RoHS 3 and REACH, ensuring safe, environmentally responsible use in global markets.
• Industry-standard reliability meeting ASME B18.3 specifications, guaranteeing consistent quality and interchangeability in professional assemblies.

Professional Applications & Engineering Value

This 10-32 UNF Class 3A set screw is engineered to address critical challenges in precision machinery, automation systems, and high-vibration equipment. Its 18-8 stainless steel composition resists oxidation and chemical exposure, making it ideal for food processing, marine, or outdoor applications. The fine UNF threads and Class 3A fit ensure minimal backlash and superior clamp load distribution, reducing the risk of loosening in dynamic loads. The headless hex drive and extended tip allow for deep engagement in pulleys, collars, and shafts, providing reliable positioning without protruding hardware. By combining Rockwell B80 hardness with stringent ASME B18.3 standards, this fastener delivers repeatable performance in CNC, robotics, and aerospace assemblies where precision and durability are non-negotiable.

Specification Summary & Compliance

This set screw adheres to Class 3A thread tolerances for UNF 10-32 fine threads, with precise tip dimensions (diameter: 0.127", length: 0.049") ensuring consistent engagement. Manufacturing and quality are governed by ASME B18.3 specifications, while environmental and safety compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) standards, confirming suitability for regulated industrial and international supply chains.