S-91375A275 9/16"-12 x 1/2" 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
- Exceptional holding power with Class 3A thread fit, ensuring tight, secure fastening in demanding applications.
- Superior corrosion resistance from the black-oxide finish, extending service life in harsh industrial environments.
- High strength and durability provided by alloy steel and Rockwell C45 hardness, resisting wear and deformation.
- Easy installation and removal with the 1/4" hex drive, allowing for efficient assembly using standard tools.
- Reliable grip and minimal surface damage due to the cup tip design, ideal for securing components on shafts or hubs.
- Wide compatibility with UNC coarse threads, facilitating quick assembly and disassembly in various machinery.
- Compliance with stringent standards including ASME B18.3, RoHS 3, and REACH, ensuring safety and environmental responsibility.
Professional Applications & Engineering Value
This black-oxide alloy steel set screw is engineered to address critical challenges in industrial settings, such as vibration-induced loosening and corrosion. The UNC coarse thread and Class 3A fit deliver precise engagement and high clamping force, making it ideal for securing pulleys, gears, and collars on rotating shafts in machinery and automotive systems. The headless design saves space and prevents interference, while the cup tip concentrates pressure to minimize damage to mating surfaces. With Rockwell C45 hardness, it withstands heavy loads and repetitive stress, ensuring long-term reliability in assembly lines, construction equipment, and manufacturing tools where durability and compliance are paramount.
Specification Summary & Compliance
This set screw features a 9/16"-12 UNC coarse thread with Class 3A dimensional accuracy for tight tolerances and superior fit. It meets ASME B18.3 manufacturing specifications and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring safe and sustainable use in global industrial applications.
