S-92311A318 4-40 x 5/32" 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 long-term reliability.
- Exceptional holding power ensured by Class 3A thread fit, providing precise, vibration-resistant fastening in critical assemblies.
- Easy installation and removal with a 0.050" hex drive, allowing for efficient torque application in confined spaces.
- Enhanced material durability from Rockwell B80 hardness, resisting wear and deformation under load.
- Secure component positioning thanks to the cup tip design, which minimizes surface damage and improves grip.
- Broad industrial compatibility with UNC coarse threads and right-hand direction, fitting standard applications seamlessly.
- Compliance with global standards including ASME B18.3, RoHS 3, and REACH, ensuring safety and environmental responsibility.
Professional Applications & Engineering Value
This 4-40 UNC set screw is engineered to address common industrial challenges like vibration loosening and corrosion in machinery and electronics. Made from 18-8 stainless steel, it offers excellent resistance to rust and chemicals, extending service life in demanding settings such as automotive assemblies, precision instruments, and outdoor equipment. The Class 3A thread fit and coarse thread spacing provide a tight, reliable hold that withstands dynamic loads, while the hex headless design and cup tip allow for flush mounting and reduced marring on components. Ideal for applications requiring repeated adjustments, this fastener ensures consistent performance and reduces maintenance downtime.
Specification Summary & Compliance
This set screw adheres to precise dimensional standards, including a Class 3A thread fit for high accuracy and a UNC thread type with coarse spacing. It meets ASME B18.3 specifications for quality and performance, and is compliant 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.
