S-92311A089 3-48 x 1/8" 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 thanks to 18-8 stainless steel construction, ideal for harsh industrial environments
- Exceptional thread engagement and holding power with Class 3A thread fit and coarse UNC threading for reliable fastening
- High durability and deformation resistance provided by Rockwell B80 hardness, ensuring long service life
- Secure, non-slip installation using the 0.050" hex drive, allowing for high torque application in confined spaces
- Positive locking and minimal component damage from the cup point tip design, preventing loosening under vibration
- Guaranteed dimensional accuracy and interchangeability through compliance with ASME B18.3 specifications
- Safe for use in regulated industries with full RoHS 3 and REACH compliance, meeting environmental and safety standards
Professional Applications & Engineering Value
This 3-48 UNC set screw is engineered to address critical fastening challenges in precision assemblies. The 18-8 stainless steel material offers excellent resistance to rust and corrosion, making it suitable for applications in machinery, electronics, and automotive components exposed to moisture or chemicals. The headless design with a hex drive allows for flush mounting in tight spaces, while the cup point creates a strong bite into the mating surface, preventing rotational slippage and maintaining alignment under dynamic loads. Its Class 3A thread fit and coarse thread spacing ensure quick assembly and high clamping force, reducing the risk of strip-out in soft materials. This screw is ideal for securing collars, gears, and pulleys where reliability and vibration resistance are paramount.
Specification Summary & Compliance
This set screw features a 3-48 UNC thread with Class 3A thread fit for precise dimensional tolerance. It is manufactured in accordance with ASME B18.3 standards, ensuring consistent quality and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its adherence to environmental and safety requirements for hazardous substance restrictions.
