S-94115A533 1/4"-20 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
- Exceptional corrosion resistance with black-oxide coating, extending service life in harsh industrial environments.
- Secure, non-marring fastening thanks to the green nylon 6/6 plastic tip that protects sensitive surfaces from damage.
- Reliable performance across a wide temperature range from -50° to 250° F, ensuring stability in varying operational conditions.
- High-strength and durability from alloy steel with a Rockwell C28 hardness, providing robust clamping force and resistance to wear.
- Precise, secure fit with Class 3A thread fit and UNC coarse threads, offering superior vibration resistance and easier assembly.
- Easy installation and removal with a 1/8" hex drive, allowing for efficient maintenance in confined, headless applications.
- Compliance with industry standards including ASME B18.3, RoHS 3, and REACH, ensuring safety and regulatory adherence for global use.
Professional Applications & Engineering Value
This 1/4"-20 UNC Class 3A set screw is engineered to address common industrial challenges like component slippage and surface damage. Made from black-oxide alloy steel, it resists rust and wear, while the nylon 6/6 plastic tip provides a soft, non-abrasive contact point—ideal for securing shafts, gears, and pulleys without marring precision parts. The coarse thread design enhances grip in high-vibration environments, such as machinery and automotive assemblies, ensuring long-term reliability. Its headless, hex drive configuration allows for flush mounting in tight spaces, making it a versatile choice for engineers seeking durable, compliant fastening solutions that meet ASME B18.3 standards and environmental regulations.
Specification Summary & Compliance
This set screw features precise UNC coarse threads with a Class 3A fit for tight tolerances and optimal performance. It adheres to ASME B18.3 manufacturing specifications and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), ensuring it meets rigorous safety and environmental standards for industrial use.
