S-94115A106 4-40 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
- Superior corrosion resistance with black-oxide coating on alloy steel for extended service life in harsh environments
- Exceptional vibration resistance through Class 3A thread fit ensuring secure, long-term fastening in high-stress applications
- Non-marring surface protection with Nylon 6/6 plastic tip preventing damage to sensitive components while maintaining grip
- Wide temperature tolerance with nylon tip operating from -50° to 250°F for reliable performance across diverse industrial conditions
- Optimized torque transmission through precision hex drive design enabling efficient installation with standard tools
- Enhanced durability with Rockwell C28 hardness providing consistent performance under repeated tightening cycles
- Regulatory compliance assurance meeting ASME B18.3 standards for guaranteed dimensional accuracy and performance
Professional Applications & Engineering Value
This 4-40 UNC set screw delivers critical engineering solutions for precision assembly applications where component positioning and vibration resistance are paramount. The black-oxide alloy steel construction combined with Class 3A thread fit ensures superior clamping force retention in machinery, automotive systems, and electronic enclosures. The integrated nylon tip provides essential surface protection while maintaining secure fastening, making it ideal for adjustable components and sliding mechanisms. Engineered with coarse UNC threads and hex drive configuration, it enables rapid installation and reliable performance in high-volume manufacturing environments where consistent torque application and dimensional accuracy are critical for production efficiency.
Specification Summary & Compliance
Manufactured to exacting ASME B18.3 specifications with Class 3A thread fit tolerance for precision engagement. The 1/4" length and 4-40 UNC coarse thread profile ensure optimal performance in standard applications. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, with material certification supporting use in regulated industries. The Rockwell C28 hardness rating guarantees consistent mechanical properties across production batches.
