S-94105A394 1/2"-13 x 2 1/4" 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 corrosion resistance with black-oxide coating, ideal for harsh industrial environments and extending service life.
- Superior holding power due to Class 3A thread fit, ensuring precise, tight, and reliable fastening in demanding applications.
- High-strength alloy steel construction with Rockwell C45 hardness, providing excellent durability and resistance to wear and deformation.
- Easy installation and removal with a 1/4" hex drive, allowing for efficient assembly and maintenance without slippage.
- Secure, flush mounting thanks to the headless design and flat tip, preventing protrusion and maintaining a clean finish.
- Wide compatibility with 1/2"-13 UNC coarse threads, offering strong engagement in various materials and reducing cross-threading risks.
- Compliance with industry standards including ASME B18.3, ensuring consistent quality and performance for professional use.
Professional Applications & Engineering Value
This black-oxide alloy steel set screw is engineered to address common industrial challenges such as component slippage, corrosion-induced failure, and assembly inefficiency. The Class 3A thread fit and coarse UNC threads provide a secure, vibration-resistant hold in machinery, automotive, and construction applications, minimizing loosening under dynamic loads. The headless hex drive design allows for compact installations in tight spaces, while the flat tip ensures even pressure distribution without damaging surfaces. Made from high-hardness alloy steel, it withstands heavy-duty use, making it ideal for set screw applications in shafts, collars, and pulleys where reliability is critical.
Specification Summary & Compliance
This set screw features precise 1/2"-13 UNC coarse threads with a Class 3A fit for tight tolerances, a length of 2-1/4", and a 1/4" hex drive. It meets ASME B18.3 specifications and is compliant with RoHS 3 and REACH regulations, ensuring environmental safety and adherence to international standards for industrial fasteners.
