S-92765A308 1/4"-20 x 3/4" 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 corrosion resistance with black-oxide coating, extending service life in demanding industrial environments
- Exceptional holding power due to Class 3A thread fit, ensuring precise, vibration-resistant fastening in critical assemblies
- High-strength durability from alloy steel with Rockwell C45 hardness, resisting deformation under heavy loads
- Easy installation and removal with hex drive design, allowing high torque application without head protrusion
- Secure component positioning with oval tip design, minimizing surface damage while providing reliable grip
- Broad compatibility with UNC coarse threads, facilitating quick assembly and disassembly in various inch-system applications
- Regulatory compliance assurance meeting ASME B18.3 standards and environmental regulations for global industrial use
Professional Applications & Engineering Value
This black-oxide alloy steel set screw delivers critical engineering solutions for industrial applications requiring reliable component positioning and vibration resistance. The combination of Rockwell C45 hardness and Class 3A thread fit addresses common challenges of loosening under dynamic loads, making it ideal for precision machinery, automotive assemblies, and heavy equipment. The hex headless design provides flush mounting in confined spaces while the oval tip minimizes marring on shaft surfaces. With UNC coarse threads ensuring rapid installation, this fastener maintains structural integrity in high-stress environments where dimensional stability and corrosion protection are paramount for operational safety and reduced maintenance intervals.
Specification Summary & Compliance
Manufactured to ASME B18.3 specifications with Class 3A thread tolerance for precision fit, this set screw features 1/4"-20 UNC coarse threads with right-hand orientation and 3/4" length. The black-oxide surface treatment on alloy steel substrate provides enhanced corrosion protection while maintaining Rockwell C45 hardness. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, meeting ASTM F912 requirements for reliable performance in industrial fastener applications.
