S-91375A656 3/8"-24 x 3" 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 corrosion resistance with black-oxide coating, extending service life in harsh industrial environments
- Exceptional torque transmission through hex drive design, preventing tool slippage during installation
- Precise thread engagement with Class 3A UNF fine threads, ensuring secure fastening in critical applications
- Maximum holding power from cup point tip design, providing excellent grip on shaft components
- High mechanical strength with Rockwell C45 hardness, maintaining integrity under heavy loads
- Space-saving headless design allowing flush mounting where clearance is limited
- Reliable performance backed by compliance with major industrial and environmental standards
Professional Applications & Engineering Value
This black-oxide alloy steel set screw delivers exceptional engineering value for demanding industrial applications where vibration resistance and corrosion protection are critical. The 3/8"-24 UNF Class 3A fine threads provide superior clamping force in precision assemblies, while the cup point tip creates permanent seating in shafts and collars, preventing rotational slippage in high-torque environments. The headless design with hex drive offers optimal space utilization in confined assemblies, making it ideal for machinery, automotive components, and power transmission systems where reliable positioning is essential. The combination of Rockwell C45 hardness and protective coating ensures long-term performance in challenging conditions, reducing maintenance frequency and replacement costs.
Specification Summary & Compliance
This set screw maintains precision Class 3A thread fit with 3/8"-24 UNF fine threads and right-hand thread direction, manufactured to ASME B18.3 specifications (ASTM F912). The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets. With a total length of 3 inches and hex drive size of 3/16", it delivers consistent performance meeting international engineering standards for dimensional accuracy and material properties.
