S-91410A975 1 1/4"-7 x 6" 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 torque transmission with a 1 1/4" square head and external square drive, preventing tool slippage during high-tension applications
- Superior wear resistance and durability thanks to Rockwell B80 hardness steel construction, ensuring long service life in demanding environments
- Reliable coarse UNC threading for faster installation and reduced cross-threading risk in industrial assemblies
- Precise Class 2A thread fit providing consistent engagement and secure fastening without binding
- Extended 6" length offering deep penetration and robust clamping force for heavy-duty components
- Full regulatory compliance with ASME B18.6.2 manufacturing standards, RoHS 3, and REACH for safe global use
- Right-hand thread design ensuring compatibility with standard installation tools and procedures
Professional Applications & Engineering Value
This 1 1/4"-7 UNC steel square head set screw delivers critical engineering value in heavy machinery, manufacturing equipment, and structural assemblies where vibration resistance and permanent positioning are paramount. The coarse thread design prevents loosening under dynamic loads, while the Rockwell B80 hardness provides excellent deformation resistance against repeated stress. The square head with external drive allows for high-torque installation using standard wrenches, making it ideal for securing gears, pulleys, and collars on shafts where accessibility is limited. Its 6" length ensures sufficient thread engagement in thick materials, solving common challenges of insufficient clamping depth in industrial fastening applications.
Specification Summary & Compliance
This set screw maintains Class 2A thread tolerances per UNC standards with 1 1/4"-7 coarse threading and right-hand direction. Manufacturing conforms to ASME B18.6.2 specifications for dimensional accuracy and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and unrestricted international trade.
