S-90291A190 8-32 ASME B18.3 Set Screws
Set Screws
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Basic Information
Head Parameters
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
Installation & Application
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Key Features & Benefits at a Glance
- Superior vibration resistance with a green nylon 6/6 tip that maintains a secure hold in high-motion applications
- Surface protection from the soft nylon tip, preventing damage to mating components during installation and use
- Excellent corrosion resistance provided by 18-8 stainless steel construction, ideal for harsh industrial environments
- High-strength threading with UNC Class 3A fit ensuring precise, reliable engagement and reduced risk of stripping
- Wide temperature tolerance with the nylon tip performing reliably from -50° to 250°F
- Easy installation and removal using a standard 5/64" hex drive, designed for headless applications where space is limited
- Consistent dimensional accuracy meeting ASME B18.3 specifications for dependable performance in precision assemblies
Professional Applications & Engineering Value
This 8-32 UNC set screw is engineered to address common challenges in industrial fastening, such as loosening under vibration and surface marring. The green nylon 6/6 plastic tip acts as a resilient locking element, absorbing shocks and maintaining clamp force without damaging shafts or gears. Made from 18-8 stainless steel, it resists rust and corrosion in demanding settings like machinery, automotive, and electronics. The coarse thread spacing and Class 3A thread fit provide quick assembly and high fatigue resistance, making it a reliable choice for set screw applications where precision and durability are critical. Its headless design and hex drive allow for flush mounting in confined spaces, enhancing versatility in engineering designs.
Specification Summary & Compliance
This set screw features a UNC 8-32 thread size with Class 3A thread fit for tight tolerances and reliable performance. It complies with ASME B18.3 manufacturing standards, ensuring dimensional consistency. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting environmental and safety regulations for industrial use.
