S-91410A779 1/2"-13 x 2 1/4" ASME B18.6.2 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
- Exceptional holding power with coarse UNC threads designed for quick installation and superior resistance to loosening in high-vibration environments
- Enhanced durability and wear resistance thanks to Rockwell B80 hardness steel construction that maintains performance under repeated use
- Secure, non-slip fastening provided by the cup point tip that creates a permanent dimple in the shaft for reliable positioning
- Easy installation and removal with the external square drive and square head design that accommodates standard wrench tools
- Precision thread fit with Class 2A tolerance ensuring consistent engagement and reducing cross-threading risks
- Heavy-duty industrial reliability backed by full compliance with ASME B18.6.2 manufacturing specifications
- Environmentally responsible manufacturing meeting RoHS 3 and REACH regulations for safe use in regulated industries
Professional Applications & Engineering Value
This 1/2"-13 UNC steel set screw delivers critical engineering solutions for industrial applications requiring permanent component positioning. The coarse thread design provides superior resistance to vibrational loosening in machinery, automotive, and heavy equipment assemblies. Manufactured from hardened steel with Rockwell B80 hardness, it maintains structural integrity under substantial shear and torsional loads. The cup point tip creates a permanent indentation in shafts and collars, preventing axial movement in pulleys, gears, and couplings. With its square head and external drive configuration, it allows for high-torque installation using standard wrench tools, making it ideal for maintenance-intensive environments where reliable, repeated access is required.
Specification Summary & Compliance
This set screw features 1/2"-13 UNC coarse threads with Class 2A thread fit per ASME standards, ensuring precise dimensional accuracy and reliable engagement. The fastener is manufactured in compliance with ASME B18.6.2 specifications governing dimensional requirements and mechanical properties. Environmental compliance is confirmed through RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) certifications, making it suitable for use in regulated industries and international markets.
