S-94564A279 4-40 x 1 1/2" 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 ensures long-lasting performance in harsh environments without rust or degradation
- Excellent electrical insulation properties prevent current leakage and short circuits in sensitive electronic applications
- Wide temperature tolerance from -40° to 185°F maintains structural integrity across diverse operating conditions
- Precise Class 2A thread fit guarantees consistent engagement and reliable fastening in assembly operations
- Compact hex drive design allows easy installation in confined spaces with standard 3/64" tools
- Headless construction provides flush mounting for streamlined assemblies and rotating components
- RoHS 3 compliance meets international environmental standards for restricted substance control
Professional Applications & Engineering Value
This 4-40 UNC nylon plastic set screw delivers critical engineering advantages where metal fasteners fail. The off-white nylon construction provides inherent corrosion resistance, eliminating galvanic compatibility issues in multi-material assemblies while offering essential electrical insulation for electronic enclosures and circuitry. The coarse UNC thread profile with Class 2A fit ensures rapid installation and vibration resistance in production environments. The headless design with flat tip creates secure, flush fastening for shafts, collars, and knobs without protrusion concerns. Operating across a broad temperature range from -40° to 185°F, this plastic fastener maintains dimensional stability in both industrial and consumer applications where thermal cycling occurs.
Specification Summary & Compliance
Manufactured to inch system specifications with 4-40 UNC coarse threads maintaining Class 2A thread fit tolerances for consistent engagement. Features right-hand thread direction with flat tip design for secure fastening. Compliant with RoHS 3 (2015/863/EU) regulations for hazardous substance restriction. The 1-1/2" length and 3/64" hex drive provide standardized installation across compatible applications.
