S-94105A423 5/8"-18 x 5/8" 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 demanding industrial environments
- Exceptional thread precision with Class 3A fit ensuring reliable, vibration-resistant fastening in critical applications
- High-strength performance backed by Rockwell C45 hardness for maximum load-bearing capacity
- Optimized installation control through 5/16" hex drive design allowing precise torque application
- Secure positioning capability with flat tip design providing stable contact surfaces
- Industry-standard compliance meeting ASME B18.3 and ASTM F912 specifications for guaranteed interoperability
- Environmental responsibility with RoHS 3 and REACH compliance for sustainable procurement
Professional Applications & Engineering Value
This black-oxide alloy steel set screw delivers critical engineering advantages in precision assembly applications where vibration resistance and positioning accuracy are paramount. The 5/8"-18 UNF fine threads with Class 3A fit create superior clamping force distribution, effectively preventing loosening in machinery, automotive components, and precision equipment. The headless design with 5/16" hex drive enables flush mounting in confined spaces while maintaining installation accessibility. The combination of Rockwell C45 hardness and protective black-oxide surface treatment ensures long-term reliability in environments exposed to moderate corrosion and mechanical stress, making it an ideal solution for permanent fastening applications requiring maintained alignment and minimal maintenance.
Specification Summary & Compliance
Manufactured to exacting Class 3A thread tolerances per UNF standards with 0.625" thread diameter and fine thread spacing. Complies with ASME B18.3 dimensional specifications and ASTM F912 material standards. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance requirements. Features right-hand thread direction and flat tip configuration for standardized installation practices across industrial applications.
