S-91375A507 1"-8 x 1 3/4" 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 corrosion resistance with black-oxide coating, extending service life in harsh industrial environments.
- Superior torque transmission via the 9/16" hex drive, ensuring secure installation and preventing tool slippage.
- Precise thread engagement with Class 3A fit for tight tolerances, reducing the risk of loosening under vibration.
- High mechanical strength from Rockwell C45 hardness, providing reliable performance in heavy-duty applications.
- Secure component positioning with the cup tip design, offering excellent grip and minimizing damage to shafts.
- Easy installation and removal thanks to coarse UNC threads, speeding up assembly in time-sensitive operations.
- Compliance with industry standards ensures consistent quality and interoperability in regulated sectors.
Professional Applications & Engineering Value
This black-oxide alloy steel set screw is engineered to address common industrial challenges such as component slippage and corrosion-induced failure. The Class 3A thread fit and coarse UNC threading provide robust holding power in high-vibration settings like machinery, automotive assemblies, and precision equipment. The cup tip design ensures minimal surface marring while maintaining a firm grip on shafts and collars. With Rockwell C45 hardness, it withstands heavy loads and repetitive stress, making it ideal for set screw applications where reliability is critical. The black-oxide finish further enhances durability by resisting rust and wear in demanding environments.
Specification Summary & Compliance
This set screw adheres to Class 3A thread fit tolerances for precise engagement, with 1"-8 UNC coarse threads and a right-hand thread direction. It meets ASME B18.3 and ASTM F912 specifications for dimensional accuracy and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and suitability for global industrial use.
