S-91375A605 5/16"-24 x 1 1/4" 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
- Superior corrosion resistance with black-oxide coating, extending service life in demanding industrial environments.
- Exceptional holding power from the Class 3A thread fit, ensuring a precise, secure, and vibration-resistant connection.
- High-strength durability provided by alloy steel and a Rockwell C45 hardness, capable of withstanding heavy loads.
- Easy and secure installation with the 5/32" hex drive, allowing for high torque application without stripping.
- Effective component locking due to the cup point tip design, which bites into the mating surface for a firm grip.
- Reliable fine thread performance with the 5/16"-24 UNF thread, offering improved adjustment precision in right-hand applications.
- Broad industry compliance meeting ASME B18.3 standards and environmental regulations like RoHS 3 and REACH.
Professional Applications & Engineering Value
This black-oxide alloy steel set screw is engineered to address critical challenges in machinery assembly, automotive, and aerospace applications where component slippage and vibration loosening are major concerns. The headless design and cup point tip provide a flush, secure fit that digs into shafts and collars, preventing axial movement. The Class 3A thread fit and UNF fine thread spacing ensure a tight, precise engagement, crucial for maintaining alignment in high-precision equipment. Its Rockwell C45 hardness and robust material construction resist wear and deformation under stress, making it an ideal heavy-duty fastener for permanent or semi-permanent installations that demand reliability and long-term performance.
Specification Summary & Compliance
This set screw features a 5/16"-24 UNF fine thread with a Class 3A thread fit for high precision. It is manufactured from alloy steel with a black-oxide surface finish and meets ASME B18.3 specifications. The product is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for use in regulated industrial and international markets.
