S-92311A729 1/2"-20 x 3/4" 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 with 18-8 stainless steel construction, ideal for harsh environments and long-term reliability.
- Exceptional thread engagement and vibration resistance due to the fine UNF thread and precise Class 3A fit.
- High torque application capability enabled by the 1/4" hex drive, preventing tool slippage and damage.
- Secure and permanent component locking with the headless design and cup point tip that bites into the mating surface.
- Consistent mechanical strength provided by a Rockwell B80 hardness, ensuring the screw withstands high shear and clamping forces.
- Guaranteed dimensional accuracy and interchangeability as it is manufactured to meet the stringent ASME B18.3 standard.
- Safe for use in regulated industries with full compliance to RoHS 3 and REACH environmental directives.
Professional Applications & Engineering Value
This 18-8 stainless steel set screw is engineered to solve critical challenges in precision assembly and machinery. The headless design allows for flush mounting in confined spaces, while the cup point creates a strong bite for permanent positioning of gears, pulleys, and collars on shafts, resisting loosening under high vibration. The 1/2"-20 UNF fine thread provides a greater number of threads per inch compared to coarse threads, resulting in a finer adjustment capability and a stronger, more reliable joint in high-stress industrial applications. Made from corrosion-resistant 18-8 stainless steel, it is the ideal choice for equipment exposed to moisture, chemicals, or outdoor conditions, ensuring longevity and reducing maintenance cycles.
Specification Summary & Compliance
This set screw features a 1/2"-20 UNF thread with a Class 3A tolerance for a high-precision, close-fit thread engagement. The manufacturing and dimensional specifications conform to ASME B18.3. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free of hazardous substances and safe for use in various global markets.
