S-91375A738 1/2"-20 x 1 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
- Maximum holding power with alloy steel construction and Rockwell C45 hardness for superior resistance to wear and deformation in demanding applications.
- Precise thread engagement thanks to the Class 3A fit and 1/2"-20 UNF fine threads, ensuring reliable, vibration-resistant fastening.
- Easy and secure installation with a 1/4" hex drive, allowing for high torque application without the risk of stripping in confined spaces.
- Excellent grip and minimal surface damage from the cup point tip, which concentrates force for a firm hold on shafts and components.
- Space-saving headless design ideal for applications where a flush or low-profile finish is required.
- Long-term reliability and compliance with ASME B18.3 standards, ensuring consistent quality and performance.
- Environmentally responsible manufacturing with full compliance to RoHS 3 and REACH regulations.
Professional Applications & Engineering Value
This alloy steel set screw is engineered to solve critical fastening challenges in industrial and mechanical assemblies. Its headless design and hex drive make it perfect for applications where space is limited and a flush surface is necessary, such as in machinery, automotive components, and precision equipment. The 1/2"-20 UNF fine thread with a Class 3A fit provides exceptional accuracy and resistance to loosening under vibration, a common issue in dynamic environments. Combined with a Rockwell C45 hardness and cup point tip, it delivers superior clamping force and minimal marring, ensuring your assemblies remain secure and intact over time, reducing maintenance needs and downtime.
Specification Summary & Compliance
This set screw features a 1/2"-20 UNF thread with a Class 3A thread fit for high precision, a length of 1-1/2", and a right-hand thread direction. It is manufactured in accordance with ASME B18.3 specifications and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring it meets stringent industry and safety standards for reliable use in various engineering applications.
