S-91410A888 7/8"-9 x 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
- Superior torque transmission with a square head and external square drive, enabling secure fastening in high-stress industrial environments.
- Enhanced durability and wear resistance thanks to the steel construction and Rockwell B80 hardness, ensuring long service life under demanding conditions.
- Reliable coarse thread engagement with UNC thread and Class 2A fit, providing quick assembly and vibration resistance in heavy machinery.
- Secure and stable positioning with a cup tip design that minimizes surface damage while maintaining a firm grip on components.
- Compliance with strict industry standards including ASME B18.6.2, ensuring consistent quality and performance in engineering applications.
- Environmental and safety adherence with RoHS 3 and REACH compliance, making it suitable for regulated markets and sustainable operations.
- Versatile 4-inch length for deep-set applications, offering flexibility in securing large or thick assemblies effectively.
Professional Applications & Engineering Value
This 7/8"-9 UNC square head set screw is engineered to address common industrial challenges, such as component slippage and fastener failure under high torque. Made from robust steel with a Rockwell B80 hardness, it resists deformation and wear in repetitive use, ideal for machinery, automotive, and construction sectors. The coarse UNC thread and Class 2A fit ensure quick, reliable installation with minimal risk of cross-threading, while the cup tip reduces marring on secured parts. By meeting ASME B18.6.2 standards, it guarantees precision and safety in critical assemblies, enhancing operational efficiency and reducing maintenance downtime.
Specification Summary & Compliance
This set screw features precise Class 2A thread fit with UNC coarse threads and a right-hand thread direction, manufactured in accordance with ASME B18.6.2 specifications. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for global industrial use.
