S-92695A718 4-48 x 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
- Superior vibration resistance with Class 3A thread fit ensuring tight, secure fastening in high-stress applications
- Enhanced corrosion protection from the black-oxide finish, extending service life in demanding industrial environments
- Precise component positioning using the 90° cone point tip for accurate alignment and minimal surface damage
- High-strength durability with Rockwell C45 hardness alloy steel, resisting wear and deformation under load
- Easy installation in confined spaces thanks to the headless design and compact 0.050" hex drive
- Reliable fine thread performance with 4-48 UNF right-hand threads, providing superior holding power
- Broad regulatory compliance meeting ASME B18.3, RoHS 3, and REACH standards for safe, quality-assured use
Professional Applications & Engineering Value
This 4-48 UNF Class 3A set screw delivers critical engineering value in precision assembly applications. The black-oxide alloy steel construction offers excellent corrosion resistance, ideal for machinery exposed to moisture or chemicals. Its fine thread spacing and Class 3A thread fit ensure minimal backlash and superior clamping force, preventing loosening in vibrating systems like motors, gearboxes, and automation equipment. The 90° cone point tip concentrates pressure for secure shaft-hub connections without damaging components. As a headless set screw with a compact hex drive, it enables flush mounting in space-constrained designs, streamlining assembly in electronics, aerospace, and automotive subsystems where reliability and precision are paramount.
Specification Summary & Compliance
This set screw adheres to Class 3A thread tolerance per UNF standards, ensuring precise fit and interchangeability. Manufacturing complies with ASME B18.3 specifications for dimensional accuracy and performance. It is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, confirming the absence of hazardous substances and supporting environmental safety in industrial supply chains.
