S-91385A197 8-32 x 3/4" ASME B18.3, ASTM F912 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
- Vibration-resistant locking with nylon patch thread locker that maintains secure fastening from -50°F to 250°F
- Superior durability from black-oxide alloy steel construction with Rockwell C45 hardness for extended service life
- Precise thread engagement with Class 3A fit ensuring reliable performance in demanding applications
- Easy installation and removal with 5/64" hex drive design for efficient maintenance operations
- Enhanced gripping power from cup tip design that provides concentrated contact pressure
- Industry-standard compatibility with UNC coarse threads and right-hand direction for broad application use
- Space-saving design as a headless set screw ideal for confined assembly areas
Professional Applications & Engineering Value
This black-oxide alloy steel set screw delivers exceptional performance in industrial settings where vibration resistance and reliable positioning are critical. The nylon patch thread locker embedded in the UNC threads creates permanent friction that prevents loosening under dynamic loads, solving common maintenance issues in machinery, automotive components, and precision equipment. The cup tip configuration concentrates pressure on a small contact area, providing superior holding power for shafts, collars, and gears. With Rockwell C45 hardness and corrosion-resistant black-oxide finish, this 8-32 set screw maintains structural integrity in demanding environments while the headless design allows flush mounting in space-constrained assemblies.
Specification Summary & Compliance
This set screw features precision 8-32 UNC coarse threads with Class 3A fit for optimal thread engagement and dimensional accuracy. Manufactured to ASME B18.3 specifications with ASTM F912 compliance, ensuring consistent quality and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, meeting the latest industry standards for safe and sustainable industrial components.
