S-92311A557 1/4"-28 x 5/16" 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.
- Maximum holding power and vibration resistance provided by the cup point tip design, preventing component slippage.
- Precise and reliable fastening ensured by the Class 3A fine UNF thread fit for tight, secure assemblies.
- High-torque installation capability with the 1/8" hex drive, allowing for secure and easy tightening in confined spaces.
- Exceptional mechanical durability from Rockwell B80 hardness, offering long-term performance under stress.
- Space-saving headless design for applications where a flush or low-profile finish is required.
- Guaranteed quality and interchangeability through compliance with the stringent ASME B18.3 standard.
Professional Applications & Engineering Value
This 18-8 stainless steel set screw is engineered to address critical challenges in industrial assembly, such as maintaining permanent alignment and resisting loosening under dynamic loads. Its headless design with a hex drive allows for installation in tight spaces where traditional screw heads are impractical. The Class 3A UNF fine thread provides a precise, tight fit, minimizing backlash and enhancing joint integrity in precision machinery, automotive components, and electronic enclosures. The cup point bites securely into the shaft or component, creating a strong mechanical lock that withstands vibration and rotational forces, making it an indispensable fastening solution for high-stakes engineering applications requiring reliability and durability.
Specification Summary & Compliance
This set screw features a 1/4"-28 UNF fine thread with a Class 3A fit for high precision and strength. It is manufactured in accordance with ASME B18.3 specifications, ensuring dimensional accuracy and performance reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety for use in various industrial and consumer applications without hazardous substances.
