S-91381A192 8-32 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 protection with black-oxide coating on alloy steel for extended service life in harsh environments
- Precise thread engagement with Class 3A thread fit ensuring reliable fastening and vibration resistance
- Surface protection through soft brass tip that prevents damage to mating components during installation
- High-strength performance with Rockwell C28 hardness maintaining structural integrity under load
- Secure installation with 5/64" hex drive providing positive torque transmission in confined spaces
- Industry-standard compatibility with UNC coarse threads for easy replacement and interchangeability
- Regulatory compliance meeting ASME B18.3 specifications and environmental standards including RoHS 3 and REACH
Professional Applications & Engineering Value
This 8-32 UNC set screw delivers exceptional engineering value in precision assembly applications where component positioning and shaft securing are critical. The black-oxide alloy steel construction provides enhanced corrosion resistance, making it suitable for industrial environments where moisture or chemical exposure occurs. The soft brass tip (0.094" diameter) eliminates marring and surface damage to expensive components while maintaining secure fastening. With Class 3A thread fit and coarse thread spacing, this headless fastener ensures reliable performance in vibration-prone applications such as machinery, motor assemblies, and precision equipment. The combination of Rockwell C28 hardness and right-hand thread design provides optimal clamping force without compromising component integrity.
Specification Summary & Compliance
This precision set screw features 8-32 UNC thread with Class 3A thread fit for superior dimensional accuracy. Manufacturing complies with ASME B18.3 specifications, ensuring consistent quality and performance. Environmental compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) standards, making it suitable for regulated industries. The product maintains precise thread diameter of 0.164" with 3/8" length and 5/64" hex drive configuration for standardized installation requirements.
