S-91375A727 1/2"-13 x 5" 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 holding power with Class 3A thread fit for precise, vibration-resistant assemblies in demanding applications
- Exceptional durability from Rockwell C45 hardened alloy steel, resisting wear and deformation under high stress
- Enhanced corrosion resistance with black-oxide coating, extending service life in industrial environments
- Secure, flush installation thanks to headless design and cup tip, preventing component interference and providing positive seating
- Efficient installation and removal with 1/4" hex drive, allowing high torque application without slippage
- Reliable coarse thread engagement using 1/2"-13 UNC threads for quick assembly and strong holding in various materials
- Confident regulatory compliance meeting ASME B18.3, RoHS 3, and REACH standards for quality and environmental safety
Professional Applications & Engineering Value
This black-oxide alloy steel set screw delivers critical performance where vibration resistance and positional security are paramount. The headless design and cup tip create a flush, non-interfering installation that maintains alignment in pulleys, gears, and collars. With Rockwell C45 hardness, it withstands repeated adjustments without thread deformation, while the 1/4" hex drive enables high-torque installation in confined spaces. The 1/2"-13 UNC coarse threads provide rapid assembly and superior grip in soft metals and plastics, making it ideal for industrial machinery, power transmission systems, and precision equipment requiring reliable component fixation.
Specification Summary & Compliance
This set screw features 1/2"-13 UNC coarse threads with Class 3A fit for superior dimensional accuracy and tight tolerances. Manufactured to ASME B18.3 specifications (ASTM F912) with Rockwell C45 hardness and black-oxide surface treatment. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global markets.
