S-92845A741 1/4"-28 x 1/2" 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 industrial environments
- Maximum holding power achieved through Class 3A thread fit precision and fine thread spacing
- Enhanced engagement with extended tip design providing superior grip and reduced component slippage
- Exceptional durability with Rockwell B80 hardness for long-term performance under stress
- Easy installation and removal using standard 1/8" hex drive tools, saving maintenance time
- Reliable compliance with ASME B18.3 standards and RoHS/REACH regulations for safe industrial use
- Precision engineering ensures consistent performance in high-vibration applications
Professional Applications & Engineering Value
This 1/4"-28 UNF Class 3A set screw delivers exceptional engineering value for demanding industrial applications where component security is critical. The 18-8 stainless steel construction provides excellent corrosion resistance, making it ideal for machinery exposed to moisture, chemicals, or outdoor elements. The extended tip design with precise diameter control (0.156") creates superior biting action into mating components, preventing loosening in high-vibration environments common in manufacturing equipment, automotive assemblies, and precision instruments. The fine thread spacing combined with Class 3A thread fit ensures minimal backlash and maximum clamping force, solving common challenges of component misalignment and positional drift in critical assemblies. These hex headless set screws are engineered to maintain precise positioning in pulleys, gears, and collars where reliability is non-negotiable.
Specification Summary & Compliance
This precision fastener features 1/4"-28 UNF fine threads with Class 3A thread fit for superior dimensional accuracy. The extended tip maintains tight tolerances with tip diameter of 0.156" (-0.007" to 0") and tip length of 0.067" (-0.005" to 0"). Manufactured to ASME B18.3 specifications and compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets.
