S-94105A357 1/4"-28 x 3/4" ASME B18.3, ASTM F912 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
- Exceptional holding power with Class 3A thread fit for precise, secure fastening in demanding applications.
- Superior corrosion resistance from the black-oxide finish, extending service life in harsh industrial environments.
- High-strength durability provided by alloy steel with Rockwell C45 hardness, resisting wear and deformation.
- Reliable, flush mounting due to the headless and flat tip design, preventing snagging and ensuring a clean installation.
- Easy installation and removal with the 1/8" hex drive, allowing for high torque application in confined spaces.
- Consistent performance guaranteed by compliance with ASME B18.3 specifications for dimensional accuracy.
- Safe for regulated industries as it meets RoHS 3 and REACH environmental compliance standards.
Professional Applications & Engineering Value
This 1/4"-28 UNF Class 3A set screw is engineered to address critical fastening challenges in precision assemblies. The black-oxide alloy steel construction offers enhanced corrosion resistance, vital for machinery exposed to moisture or chemicals, while the Rockwell C45 hardness ensures the screw maintains its integrity under high stress. Its headless design and fine thread provide a secure, low-profile fit, making it ideal for securing collars, gears, and pulleys on shafts without protruding. The hex drive allows for efficient torque transmission, reducing installation time and preventing slippage. Commonly used in automotive, aerospace, and manufacturing equipment, this screw delivers reliable performance where vibration resistance and long-term stability are paramount.
Specification Summary & Compliance
This set screw features a 1/4"-28 UNF fine thread with Class 3A fit for high precision and strength. It is manufactured in accordance with ASME B18.3 specifications, ensuring dimensional consistency. The product is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), confirming it is free of hazardous substances and safe for various industrial applications.
