S-91375A565 1/4"-28 x 1 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 Fastening Accuracy with Class 3A thread fit ensuring precise, reliable connections in critical assemblies.
- Enhanced Corrosion Resistance from the black-oxide finish on alloy steel, extending service life in harsh environments.
- High Mechanical Strength backed by Rockwell C45 hardness, providing dependable load-bearing capacity and durability.
- Secure, Flush Installation with a headless hex drive design, ideal for confined spaces and preventing protrusion.
- Optimized Grip and Alignment thanks to the cup tip, which minimizes component slippage during tightening.
- Industry-Standard Compliance meeting ASME B18.3 specifications for consistent quality and interchangeability.
- Environmental and Safety Assurance with full RoHS 3 and REACH compliance, supporting sustainable manufacturing practices.
Professional Applications & Engineering Value
This 1/4"-28 UNF set screw is engineered to address common industrial challenges such as vibration-induced loosening and misalignment in machinery. The fine thread spacing and Class 3A fit provide exceptional clamping force and positional accuracy, crucial for precision equipment like motor shafts, gear assemblies, and aerospace components. Made from black-oxide alloy steel, it offers superior resistance to rust and wear, while the headless hex drive allows for seamless integration in tight spaces. Its cup tip ensures concentrated pressure, reducing the risk of damage to secured parts. Ideal for industrial set screws applications requiring high-strength, reliable fastening under dynamic loads.
Specification Summary & Compliance
This set screw adheres to Class 3A thread fit for tight tolerances and UNF fine thread standards, ensuring dimensional precision. It conforms to ASME B18.3 manufacturing specifications and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing safety and environmental responsibility in industrial use.
