S-90289A622 3/8"-16 x 3/4" 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
- Superior corrosion resistance with black-oxide finish, extending service life in harsh industrial environments
- Exceptional holding power from Rockwell C45 hardness alloy steel, preventing deformation under high stress
- Precise Class 3A thread fit ensures vibration-resistant fastening with minimal backlash
- Secure hex drive installation allows high torque application without cam-out risks
- Effective serrated locking maintains position under dynamic loads without requiring additional locking elements
- Optimized cup tip design creates positive seating and reduces component surface damage
- Full regulatory compliance meets ASME B18.3 and environmental standards for global applications
Professional Applications & Engineering Value
This black-oxide alloy steel set screw delivers critical performance where vibration resistance and corrosion protection are paramount. The 3/8"-16 UNC coarse thread with Class 3A precision provides rapid installation while maintaining tight tolerances in demanding applications. The headless design with hex drive enables flush mounting in confined spaces while accommodating standard wrenching tools. Serrations beneath the cup tip bite into mating surfaces, creating a mechanical lock that prevents loosening from machinery vibration. Ideal for industrial machinery, power transmission systems, and precision equipment where reliable positioning and repeated adjustment cycles are required. The combination of Rockwell C45 hardness and protective coating ensures longevity in both indoor and moderately corrosive environments.
Specification Summary & Compliance
Manufactured to ASME B18.3 specifications with 3/8"-16 UNC coarse threads meeting Class 3A dimensional tolerances for superior fit. The black-oxide alloy steel construction provides consistent Rockwell C45 hardness throughout. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global markets. Features right-hand threads with 3/4" length and 3/16" hex drive for standardized tool compatibility.
