S-92785A434 1/4"-20 x 5/16" ASME B18.3 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 18-8 stainless steel construction, ideal for harsh industrial environments
- Exceptional holding power due to Class 3A thread fit, ensuring minimal backlash and secure fastening
- High mechanical strength with Rockwell B80 hardness, providing excellent resistance to wear and deformation
- Secure anti-loosening grip from the 90° cone point design, preventing component slippage under vibration
- Easy installation in confined spaces with the headless design and 1/8" hex socket drive
- Reliable coarse UNC threading for quick assembly and reduced cross-threading risks
- Broad industry compliance meeting ASME B18.3 standards and environmental regulations like RoHS 3 & REACH
Professional Applications & Engineering Value
This 1/4"-20 UNC hex socket set screw delivers critical engineering solutions for precision assembly needs. The 18-8 stainless steel material offers excellent corrosion resistance, making it suitable for applications exposed to moisture, chemicals, or outdoor conditions. Its Class 3A thread fit and coarse UNC thread provide superior clamping force and vibration resistance, essential for securing gears, pulleys, and collars on shafts in machinery and automotive systems. The 90° cone point bites firmly into surfaces, preventing rotational movement, while the headless design allows flush mounting in space-constrained assemblies. Ideal for industrial maintenance, manufacturing equipment, and precision instruments, this set screw ensures long-term reliability and compliance with stringent ASME B18.3 specifications.
Specification Summary & Compliance
This set screw features a 1/4"-20 UNC coarse thread with Class 3A thread fit for high precision and minimal tolerance. Dimensions include a 5/16" length and 1/8" hex drive. It conforms to ASME B18.3 manufacturing standards and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in various industrial applications.
