S-91375A681 7/16"-20 x 7/16" 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
- Enhanced corrosion resistance with black-oxide coating, extending service life in demanding environments
- Superior thread precision with Class 3A fit for secure, vibration-resistant fastening in critical assemblies
- High-strength durability from alloy steel and Rockwell C45 hardness, resisting deformation under heavy loads
- Optimal torque transmission via 7/32" hex drive, enabling efficient installation with standard tools
- Secure component locking with cup tip design, preventing slippage and maintaining positional accuracy
- Reliable fine thread engagement using 7/16"-20 UNF, ideal for precise adjustments in tight spaces
- Compliance with industrial standards including ASME B18.3, ensuring interchangeability and safety
Professional Applications & Engineering Value
Engineered for precision industrial applications, this black-oxide alloy steel set screw addresses common challenges in machinery assembly, automotive components, and precision equipment. The Class 3A UNF fine threads provide exceptional clamping force and vibration resistance, critical for maintaining alignment in high-stress environments. The cup tip design bites securely into shafts and collars, preventing rotational loosening while the headless construction allows flush mounting in confined spaces. With Rockwell C45 hardness, it withstands repeated adjustments without thread wear, making it ideal for set screw applications requiring long-term reliability and dimensional stability under dynamic loads.
Specification Summary & Compliance
This 7/16"-20 UNF set screw maintains Class 3A thread tolerances per ASME B18.3 specifications, ensuring precise fit and consistent performance. Manufacturing complies with ASTM F912 material standards, while environmental regulations including RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) are fully met for global industrial use. The right-hand fine threads and 7/16" length provide standardized compatibility with UNF threaded components.
