S-92785A116 4-40 x 1/4" 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 or humid industrial environments.
- Maximum holding power and vibration resistance from the 90° cone point tip that bites securely into the mating surface.
- Precise and reliable thread engagement ensured by the Class 3A thread fit for high-strength, close-tolerance assemblies.
- Easy installation and high torque application with the hex drive style and compact, headless design for use in confined spaces.
- Excellent durability and material strength provided by a Rockwell B80 hardness, resisting wear and deformation.
- Wide compatibility and interchangeability due to the standardized 4-40 UNC coarse thread and compliance with ASME B18.3.
- Safe for regulated industries with full compliance to RoHS 3 and REACH environmental standards.
Professional Applications & Engineering Value
This 4-40 UNC thread set screw is engineered to solve critical challenges in precision assemblies where space is limited and vibration resistance is paramount. The 18-8 Stainless Steel material offers excellent corrosion resistance, making it suitable for applications in electronics, automotive, and machinery exposed to moisture or chemicals. The hex headless design allows for flush mounting in tight spaces, while the 90° cone point provides a strong, permanent grip on shafts and collars, preventing slippage. Its Class 3A thread fit and coarse thread spacing ensure quick assembly and reliable performance in high-stress environments, delivering consistent industrial durability and long-term operational security.
Specification Summary & Compliance
This set screw features a 4-40 UNC coarse thread with a Class 3A thread fit for precise dimensional accuracy. It is manufactured in compliance with the ASME B18.3 standard, ensuring consistent quality and performance. The product is also RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting stringent environmental and safety regulations for use in various global markets.
