S-90289A359 5/16"-24 x 5/16" ASME B18.3 Set Screws
Set Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior holding power with Class 3A thread fit for reliable, vibration-resistant fastening in demanding applications
- Enhanced corrosion resistance from the Black-Oxide finish, extending service life in various industrial environments
- High-strength durability due to alloy steel construction and Rockwell C45 hardness, preventing stripping and deformation
- Secure, flush installation with headless design and cup tip, ideal for applications requiring a smooth surface finish
- Easy installation and removal using the 5/32" hex drive, allowing for high torque application with standard tools
- Precise fine thread engagement with 5/16"-24 UNF threads, providing excellent adjustment and clamping force
- Broad compliance assurance meeting ASME B18.3, RoHS 3, and REACH standards for global industrial use
Professional Applications & Engineering Value
This Black-Oxide alloy steel set screw is engineered to address critical challenges in machinery assembly, automotive components, and precision equipment. The Class 3A thread fit and fine UNF threads ensure minimal backlash and superior resistance to loosening under vibration, a common issue in dynamic industrial environments. The cup tip design concentrates pressure for secure seating on shafts or collars, while the headless construction allows for flush mounting in confined spaces. Made from high-strength alloy steel with a Rockwell C45 hardness, it withstands high stress without failure, making it ideal for permanent or semi-permanent fastening in industrial set screw applications where reliability is paramount.
Specification Summary & Compliance
This set screw features a 5/16"-24 UNF fine thread with Class 3A thread fit for precise dimensional accuracy and optimal performance. It is manufactured in accordance with ASME B18.3 specifications and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safety and sustainability in industrial use.
