S-91410A542 1/4"-20 x 1" 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
- Superior torque transmission through the external square drive design, enabling secure installation in high-vibration environments
- Exceptional thread engagement with Class 2A UNC coarse threads, ensuring reliable fastening and reduced cross-threading risks
- Enhanced material durability with Rockwell B80 hardness steel construction, providing excellent resistance to deformation under load
- Optimized tip design featuring a cup tip that creates positive seating and minimizes component surface damage
- Regulatory compliance assurance meeting ASME B18.6.2 specifications for dimensional accuracy and performance standards
- Environmental responsibility with RoHS 3 and REACH compliance, ensuring safe use in regulated industrial applications
- Versatile installation capability with right-hand threading compatible with standard industrial equipment and procedures
Professional Applications & Engineering Value
This 1/4"-20 UNC square head set screw delivers critical engineering solutions for industrial applications where vibration resistance and permanent positioning are paramount. The steel construction with Rockwell B80 hardness provides the necessary strength to maintain clamping force in demanding environments, while the coarse thread pitch ensures rapid installation and superior holding power in softer materials. The external square drive design allows for high-torque application without stripping, making it ideal for machinery, automotive components, and manufacturing equipment where reliable fastening prevents costly downtime and maintenance. The cup tip configuration creates concentrated point pressure, securely locking components without requiring through-holes.
Specification Summary & Compliance
This set screw maintains Class 2A thread fit tolerance per UNC standards, ensuring proper clearance for reliable assembly. Manufacturing adheres to ASME B18.6.2 specifications for dimensional accuracy and mechanical properties. The product is fully RoHS 3 (2015/863/EU) compliant and meets REACH (EC 1907/2006) requirements for environmental safety and restricted substance management.
