S-95289A113 4-40 x 3/8" 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 with 18-8 Stainless Steel construction, ideal for harsh environments and extended service life
- Exceptional holding power achieved through Class 3A thread fit, ensuring tight, secure fastening in precision assemblies
- Enhanced durability with Rockwell B80 hardness, providing reliable performance under mechanical stress
- Optimized for high-torque applications featuring a hex drive design that prevents cam-out and allows for secure installation
- Improved grip and alignment with an extended tip configuration, facilitating precise positioning in components
- Broad industrial compatibility due to UNC coarse threading, enabling quick assembly and disassembly
- Compliance with strict regulations including RoHS 3 and REACH, ensuring safe use in global markets
Professional Applications & Engineering Value
This 4-40 UNC set screw is engineered to address critical challenges in industrial fastening, such as vibration loosening and misalignment. Crafted from 18-8 Stainless Steel, it offers excellent resistance to rust and corrosion, making it suitable for applications in machinery, automotive, and electronics where environmental factors are a concern. The Class 3A thread fit and coarse UNC threading provide a precise, reliable hold that minimizes backlash in dynamic systems. Its hex headless design and extended tip allow for flush mounting and improved contact in collars, shafts, and pulleys, reducing the risk of component slippage. By meeting ASME B18.3 standards, this set screw ensures consistent quality and performance, supporting efficient maintenance and reducing downtime in B2B operations.
Specification Summary & Compliance
This set screw adheres to Class 3A thread fit for high precision in inch measurements, with UNC coarse threads (4-40 size) and a length of 3/8". It conforms to ASME B18.3 manufacturing specifications, ensuring dimensional accuracy and reliability. Additionally, it is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety for use in various industrial sectors without hazardous substances.
