S-91410A636 3/8"-16 x 3" 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 reliable performance in high-vibration environments.
- Superior durability thanks to Rockwell B80 hardness steel construction, resisting wear and deformation under heavy loads.
- Secure and easy installation with a square external drive head that provides a firm grip for high-torque applications without stripping.
- Precise thread fit with Class 2A tolerance ensuring consistent engagement and reducing the risk of cross-threading in assembly.
- Enhanced component positioning using the cup tip design to create a small indentation for secure, semi-permanent fastening.
- Broad industrial compliance meeting ASME B18.6.2 standards for dimensional accuracy and RoHS 3/REACH regulations for environmental safety.
- Right-hand thread direction for standard, intuitive tightening in common machinery and equipment setups.
Professional Applications & Engineering Value
This 3/8"-16 UNC steel set screw is engineered to address critical challenges in industrial assembly, such as component slippage and loosening under dynamic loads. The coarse thread design ensures rapid installation and robust holding in materials like cast iron or soft metals, while the square head allows for high-torque application with standard tools, minimizing downtime. Made from hardened steel (Rockwell B80), it withstands repetitive stress in heavy-duty applications like machinery shafts, pulleys, and gears. The cup tip provides concentrated pressure, creating a secure dimple for precise alignment and resistance to rotational forces, making it ideal for permanent or semi-permanent fastening in manufacturing, automotive, and construction sectors.
Specification Summary & Compliance
This set screw features a 3/8"-16 UNC coarse thread with Class 2A fit for standard tolerance and reliable engagement. It complies with ASME B18.6.2 for dimensional and mechanical specifications, ensuring interchangeability and performance. Environmental regulations adherence includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), confirming it is free of restricted hazardous substances for safe industrial use.
