S-91410A859 3/4"-10 x 6" ASME B18.6.2 Set Screws

Key Features & Benefits at a Glance

• Superior torque transmission with external square drive design for reliable fastening in demanding applications
• Enhanced durability with Rockwell B80 hardness steel construction resisting wear and deformation
• Quick installation efficiency through coarse UNC threading that reduces assembly time
• Precise thread engagement with Class 2A fit ensuring consistent performance and alignment
• Secure component positioning with cup tip design that minimizes surface damage during clamping
• Industry-standard compatibility meeting ASME B18.6.2 specifications for reliable interchangeability
• Environmental compliance assurance with RoHS 3 and REACH regulations for global manufacturing suitability

Professional Applications & Engineering Value

This 3/4"-10 UNC steel square head set screw delivers exceptional performance in heavy-duty industrial applications where vibration resistance and secure component positioning are critical. The external square drive design provides maximum torque transmission capability, preventing tool slippage during installation in high-stress environments. With its coarse thread spacing and Class 2A thread fit, this fastener ensures rapid assembly while maintaining precise tolerances in machinery, equipment manufacturing, and structural applications. The cup tip configuration concentrates clamping force effectively while minimizing surface marring, making it ideal for permanent positioning of gears, pulleys, and collars on shafts. Manufactured from steel with Rockwell B80 hardness, this set screw maintains its mechanical properties under continuous operational stress, providing long-term reliability in industrial settings.

Specification Summary & Compliance

This square head set screw features precise Class 2A thread fit tolerances with 3/4"-10 UNC coarse threading and right-hand thread direction. The fastener complies with ASME B18.6.2 manufacturing specifications ensuring dimensional accuracy and performance reliability. Environmental compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, making it suitable for use in regulated industries and international markets. The product maintains consistent quality standards with a 6" length, 37/64" head height, and 3/4" head width dimensions for predictable performance across applications.