S-92991A133 5/16"-24 x 1/4" 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 due to brass construction, ideal for harsh environments and electrical applications.
- Exceptional thread precision and fit with Class 3A UNF fine threads for reliable, vibration-resistant fastening.
- High durability and deformation resistance provided by Rockwell B55 hardness for long service life.
- Secure, flush mounting with a headless design and positive-grip 5/32" hex drive for confined spaces.
- Enhanced gripping power from the cup point tip design, preventing component slippage.
- Guaranteed dimensional consistency and interchangeability through compliance with the ASME B18.3 standard.
- Safe for regulated industries with full compliance to RoHS 3 and REACH environmental directives.
Professional Applications & Engineering Value
This high-precision brass set screw is engineered to solve critical challenges in precision assembly and adjustment mechanisms. Its Class 3A UNF fine thread provides a tighter fit and superior resistance to loosening under vibration, a common failure point in machinery and electronics. The headless design with a 5/32" hex drive allows for a flush finish and tool access in tight spaces, while the cup point tip bites securely into the shaft, preventing axial movement. Manufactured from brass, it offers inherent corrosion resistance and non-magnetic properties, making it indispensable for marine applications, electrical enclosures, and precision instruments where material compatibility and long-term reliability are paramount.
Specification Summary & Compliance
This set screw conforms to the tight tolerance Class 3A thread fit for unified fine (UNF) threads, ensuring precision and reliability. It is manufactured in accordance with the ASME B18.3 specification governing socket set screws. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its adherence to strict environmental and safety standards for hazardous substances.
