S-92311A561 1/4"-28 x 5/8" 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 from 18-8 stainless steel construction, ideal for harsh industrial environments.
- Exceptional holding power with Class 3A thread fit, ensuring tight, secure, and vibration-resistant fastening.
- Easy installation and removal using the 1/8" hex drive, providing reliable torque transfer in confined spaces.
- Enhanced grip and minimal surface damage due to the cup tip design, perfect for repeated adjustments.
- High durability and strength with Rockwell B80 hardness, resisting deformation under heavy loads.
- Precise fine thread engagement with 1/4"-28 UNF right-hand threads, offering superior alignment and load distribution.
- Compliance with major industry standards including ASME B18.3, RoHS 3, and REACH, ensuring safety and environmental responsibility.
Professional Applications & Engineering Value
This 18-8 stainless steel set screw is engineered to solve critical challenges in precision assemblies where vibration resistance and corrosion prevention are paramount. The headless design and hex drive allow for flush mounting in tight spaces, commonly used in machinery, automotive components, and electronic enclosures. Its fine thread spacing and Class 3A thread fit provide a tighter tolerance than standard fits, reducing the risk of loosening under dynamic loads. The cup tip concentrates pressure on a small area, improving grip without damaging shafts or hubs. Made from durable stainless steel, it withstands exposure to moisture, chemicals, and temperature variations, making it a reliable choice for industrial set screws in demanding applications.
Specification Summary & Compliance
This set screw adheres to ASME B18.3 specifications, with a Class 3A thread fit for high precision in Unified National Fine (UNF) 1/4"-28 threads. It is manufactured from 18-8 stainless steel and 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.
