S-92311A603 5/16"-24 x 1" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments and outdoor applications.
• Exceptional thread precision with Class 3A fit ensures reliable, vibration-resistant fastening and reduces the risk of loosening.
• High mechanical strength and durability provided by Rockwell B80 hardness, suitable for high-stress assemblies.
• Secure, flush installation thanks to the headless design and cup tip, preventing snagging and offering a clean finish.
• Easy installation and removal with a 5/32" hex drive, allowing for high torque application in confined spaces.
• Fine thread spacing delivers enhanced adjustment control and superior holding power in precision components.
• Full regulatory compliance with ASME B18.3, RoHS 3, and REACH, ensuring safety and environmental standards are met.

Professional Applications & Engineering Value

This 5/16"-24 UNF Class 3A set screw is engineered to address critical challenges in precision machinery and industrial assemblies. Its 18-8 stainless steel composition offers excellent resistance to corrosion and oxidation, making it a reliable choice for applications in automotive, aerospace, and marine environments where moisture and chemicals are prevalent. The fine UNF thread and Class 3A fit provide minimal backlash and superior clamping force, essential for maintaining alignment in high-vibration settings. The headless design with a hex drive allows for compact installation without protruding parts, while the cup tip ensures a firm grip on shafts and collars, preventing slippage. Ideal for securing gears, pulleys, and other rotating components, this screw enhances the longevity and reliability of your equipment, reducing maintenance needs and downtime.

Specification Summary & Compliance

This set screw adheres to ASME B18.3 specifications, with a Class 3A thread fit for high precision and tight tolerances. It features a 5/16"-24 UNF fine thread with right-hand direction, a length of 1", and a cup tip for secure fastening. Manufactured from 18-8 stainless steel with a Rockwell B80 hardness, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances and suitable for global industrial use.