S-92311A326 5-40 x 5/8" 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 environments and long-term reliability.
- Exceptional holding power ensured by the Class 3A thread fit, providing precise, secure fastening with minimal backlash.
- Optimized for high-torque applications using a 1/16" hex drive, allowing for easy installation and removal in confined spaces.
- Enhanced grip and resistance to vibration from the cup point tip, which bites into the mating surface to prevent loosening.
- Consistent performance and durability backed by a Rockwell B80 hardness, offering a balance of strength and ductility.
- Reliable coarse UNC threading for quick assembly and reduced cross-threading risks in industrial settings.
- Flush, headless design for applications requiring a smooth surface profile and unobstructed movement.
Professional Applications & Engineering Value
This 5-40 UNC set screw is engineered to address common industrial challenges such as component slippage, corrosion-induced failure, and assembly inefficiency. The 18-8 stainless steel material provides excellent resistance to rust and oxidation, making it suitable for applications in moist or chemically aggressive environments, including machinery, automotive assemblies, and electronic enclosures. The cup point design concentrates pressure on a small area, creating a firm grip that resists vibrational loosening in dynamic systems. Combined with the Class 3A thread fit and coarse thread spacing, this screw ensures quick, reliable fastening with high repeatability, reducing downtime and maintenance costs in precision engineering and heavy-duty set screw applications.
Specification Summary & Compliance
This set screw adheres to strict dimensional and performance criteria, including a Class 3A thread fit for precise tolerances and a UNC thread type with a 5-40 size. It meets ASME B18.3 specifications for consistency and reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and safe for various industrial uses.
