S-92695A628 5-40 x 1/2" 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
- Superior vibration resistance with Class 3A thread fit for secure, long-term fastening in high-stress applications
- Enhanced corrosion protection from black-oxide coating on alloy steel, extending service life in demanding environments
- Optimal material strength with Rockwell C45 hardness, providing reliable performance under heavy loads
- Precise component positioning thanks to the 90° cone point that bites into surfaces for maximum holding power
- Easy installation and removal with hex drive design requiring only 1/16" wrench access in confined spaces
- Wide industrial compatibility through UNC coarse threading that resists loosening better than fine threads
- Space-saving headless design allowing flush mounting where protruding fasteners aren't feasible
Professional Applications & Engineering Value
Engineered for precision industrial applications, this 5-40 UNC set screw delivers exceptional performance in machinery assembly, automotive components, and power transmission systems. The black-oxide alloy steel construction combined with Rockwell C45 hardness provides superior resistance to wear and environmental factors, while the 90° cone point creates permanent seating that prevents shaft slippage in pulleys, gears, and collars. The Class 3A thread fit ensures tighter tolerances than standard fasteners, eliminating play in critical assemblies. With its right-hand coarse threading and hex drive style, this set screw offers quick installation and reliable maintenance access in space-constrained applications where vibration resistance is paramount.
Specification Summary & Compliance
This precision fastener features 5-40 UNC coarse threads with Class 3A thread fit for superior dimensional accuracy. Manufactured to ASME B18.3 specifications (ASTM F912) with a 1/2" length and 0.125" thread diameter. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring safe use across global industrial markets.
