S-91375A751 1-72 x 1/16" 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, extending service life in harsh industrial environments
- Exceptional thread precision with Class 3A fit for secure, vibration-resistant fastening in critical assemblies
- High-strength construction from alloy steel with Rockwell C45 hardness for maximum durability and load-bearing capacity
- Reliable cup tip design that provides positive seating and minimizes component surface damage during installation
- Compact hex drive (0.035") enables easy installation in confined spaces while maintaining high torque transmission
- Fine UNF thread profile offers superior holding power and resistance to loosening under dynamic loads
- Full regulatory compliance with ASME B18.3, RoHS 3, and REACH ensures material safety and international acceptance
Professional Applications & Engineering Value
This 1-72 UNF Class 3A set screw delivers critical engineering solutions for precision assemblies requiring minimal protrusion and reliable clamping force. The Black-Oxide alloy steel construction provides essential corrosion protection while maintaining the Rockwell C45 hardness needed for repeated adjustments without thread deformation. The cup tip design creates concentrated contact pressure that prevents slippage in shafts, collars, and gears, while the fine UNF thread ensures superior resistance to vibrational loosening in machinery, automotive, and aerospace applications. The headless configuration with hex drive allows installation in space-constrained assemblies where traditional fasteners cannot be used, making it ideal for precision instruments, rotating components, and permanent positioning applications.
Specification Summary & Compliance
This set screw features precision 1-72 UNF fine threads with Class 3A fit for superior thread engagement and dimensional accuracy. Manufactured to ASME B18.3 specifications with Rockwell C45 hardness for consistent mechanical properties. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material traceability for global industrial applications.
