S-92311A272 4-40 x 1 1/2" ASME B18.3 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 corrosion resistance thanks to 18-8 Stainless Steel construction, ensuring long-term reliability in harsh environments.
- Exceptional holding power and vibration resistance from the Class 3A thread fit, providing a secure, precise fit for critical assemblies.
- Enhanced grip and minimal surface damage with the cup tip design, ideal for securing components on shafts and hubs.
- High strength and durability backed by Rockwell B80 hardness, resisting wear and deformation under load.
- Easy and secure installation with the 0.050" hex drive, allowing for high torque application without slippage.
- Reliable performance in demanding applications due to coarse UNC threads, enabling quick assembly and strong engagement.
- Compliance with industry standards and environmental regulations, including ASME B18.3, RoHS 3, and REACH, ensuring safety and quality.
Professional Applications & Engineering Value
This 4-40 UNC set screw is engineered to solve common industrial challenges like component slippage and fastener failure in high-vibration environments. Its 18-8 Stainless Steel material offers excellent corrosion resistance, making it suitable for outdoor, marine, or chemical-exposed applications. The hex headless design and cup tip provide a flush finish and concentrated gripping force, preventing damage to shafts and ensuring permanent alignment in machinery, automotive, and precision equipment. With a coarse thread and Class 3A fit, it ensures quick installation and reliable clamping, reducing maintenance needs and downtime in B2B procurement for OEMs and MRO operations.
Specification Summary & Compliance
This set screw adheres to precise dimensional standards, including a Class 3A thread fit for tight tolerances and UNC coarse threads (4-40 size) with a thread diameter of 0.112". It meets ASME B18.3 specifications for consistency and performance. Additionally, it is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), ensuring it is free from hazardous substances and safe for various industrial uses.
