S-94564A246 4-40 x 9/16" 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 from nylon plastic construction, eliminating rust and chemical degradation in harsh environments
- Excellent electrical insulation properties for safe use in electrical assemblies and sensitive electronic applications
- Precise Class 2A thread fit ensures reliable engagement and consistent clamping force in UNC threaded components
- Compact hex drive design (3/64") provides secure tool engagement in space-constrained assemblies
- Wide temperature tolerance (-40° to 185°F) maintains performance across industrial and outdoor applications
- Headless flat tip configuration enables flush mounting without protruding hardware interference
- RoHS 3 compliance meets international environmental standards for restricted hazardous substances
Professional Applications & Engineering Value
Engineered for precision fastening where metal components pose contamination or conductivity risks, this 4-40 UNC nylon set screw delivers critical performance advantages. The off-white nylon plastic construction provides inherent corrosion resistance without additional coatings, making it ideal for chemical processing equipment, marine environments, and food-grade applications. The hex drive design ensures positive torque transmission while the Class 2A thread fit maintains precise alignment in repeated assembly operations. As a headless set screw with flat tip, it creates seamless joints in machinery, electronic enclosures, and adjustment mechanisms where protruding fasteners would interfere with operation. The material's natural electrical insulation properties make it particularly valuable in electrical panels, sensor mounts, and PCB assemblies where short-circuit prevention is paramount.
Specification Summary & Compliance
This 4-40 UNC set screw features coarse threads with Class 2A thread fit per Unified Thread Standard specifications, ensuring dimensional accuracy and reliable performance. The 9/16" length and 0.112" thread diameter provide standardized sizing for industrial applications. Manufactured from durable nylon plastic with right-hand thread direction and flat tip configuration. Fully compliant with RoHS 3 (2015/863/EU) regulations, containing no restricted hazardous substances for environmental safety.
