S-91381A195 8-32 x 5/16" 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
- Precision Class 3A thread fit ensures reliable, vibration-resistant fastening in demanding applications
- Black-oxide coated alloy steel construction provides superior corrosion resistance and extended service life
- Integrated brass soft tip delivers maximum holding power without damaging precision-machined surfaces
- Rockwell C28 hardness rating guarantees exceptional strength and durability under heavy loads
- 5/64" hex drive headless design enables flush installation in space-constrained assemblies
- UNC coarse threading facilitates quick installation and superior resistance to loosening
- Full regulatory compliance meets ASME B18.3 specifications and environmental standards for global applications
Professional Applications & Engineering Value
This 8-32 UNC Class 3A set screw delivers exceptional engineering value through its specialized material combination and precision manufacturing. The black-oxide alloy steel body provides high tensile strength and corrosion resistance, while the brass soft tip prevents surface damage to expensive components during clamping operations. Engineered for industrial applications requiring reliable positioning and secure fastening, this headless set screw solves critical challenges in machinery assembly, automotive components, and precision equipment where vibration resistance and surface protection are paramount. The coarse UNC thread ensures rapid installation and maintains clamping force in high-vibration environments, making it ideal for production lines requiring both speed and reliability.
Specification Summary & Compliance
This set screw maintains Class 3A thread fit tolerance for precision applications and complies with ASME B18.3 manufacturing specifications. The product meets RoHS 3 (2015/863/EU) compliance for hazardous substance restrictions and REACH (EC 1907/2006) regulations for chemical safety. Manufacturing standards ensure consistent 8-32 UNC coarse thread geometry with 0.164" thread diameter and 5/16" length for reliable performance across industrial applications.
