S-92311A339 5/16"-24 x 7/8" ASME B18.3 Set Screws
Set Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments and reducing replacement costs.
- Exceptional vibration resistance due to the cup point design that bites into surfaces, preventing loosening under dynamic loads.
- Precise thread engagement with Class 3A fit and fine UNF threads, ensuring reliable clamping force and minimal backlash.
- High durability and strength from Rockwell B80 hardness, providing long service life under mechanical stress.
- Easy installation and removal using the 5/32" hex drive, allowing for efficient assembly in confined spaces without head protrusion.
- Compliance with industry standards including ASME B18.3, ensuring consistent quality and interchangeability in professional applications.
- Environmentally safe operation with RoHS 3 and REACH compliance, meeting global regulatory requirements for hazardous substances.
Professional Applications & Engineering Value
This 5/16"-24 UNF Class 3A set screw is engineered to address common industrial challenges such as component slippage and vibration-induced failures. Made from 18-8 stainless steel, it offers excellent resistance to rust and corrosion, making it suitable for applications in machinery, automotive, and electronics where exposure to moisture or chemicals is a concern. The headless hex drive and cup point tip design provide secure, flush mounting and enhanced gripping power, preventing rotational movement in shafts, collars, and pulleys. With fine thread spacing and a right-hand thread direction, it ensures precise adjustment and reliable performance in high-stress assemblies, reducing maintenance downtime and improving overall system integrity.
Specification Summary & Compliance
This set screw adheres to Class 3A thread fit for tight tolerances and superior accuracy in UNF fine threads. It meets ASME B18.3 manufacturing specifications and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and industry-standard reliability.
