S-94564A228 4-40 x 9/64" 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
- Excellent corrosion resistance from nylon plastic material, ideal for humid or chemical environments without rust concerns.
- Secure, vibration-resistant fastening with coarse UNC threads and Class 2A fit, ensuring reliable hold in assemblies.
- Wide temperature tolerance from -40°F to 185°F, maintaining performance in varied operating conditions.
- Space-saving headless design allows flush mounting in tight spaces where protruding heads are not feasible.
- Easy installation and removal with 3/64" hex drive, providing tool compatibility and efficient maintenance.
- Flat tip design offers uniform surface contact, reducing component damage during tightening.
- RoHS 3 compliance ensures environmental safety and meets international regulatory standards for electronics and sensitive applications.
Professional Applications & Engineering Value
This 4-40 UNC nylon plastic set screw delivers critical advantages in precision assemblies where metal fasteners fall short. Its non-conductive and non-magnetic properties make it perfect for electrical enclosures, sensor mounts, and medical devices, eliminating interference risks. The off-white nylon construction resists chemicals, oils, and moisture, preventing degradation in harsh industrial settings. With a right-hand thread and coarse thread spacing, it ensures quick installation and high clamping force in plastic or soft materials, reducing stripping. Engineers value its headless, flat tip design for securing knobs, pulleys, and shafts without marring surfaces, while the temperature range supports use in automotive, aerospace, and consumer electronics under thermal stress.
Specification Summary & Compliance
This set screw adheres to UNC thread standards with a Class 2A fit for consistent dimensional accuracy and interchangeability. It meets RoHS 3 (2015/863/EU) compliance, ensuring it is free from hazardous substances. The inch-based specifications include a thread size of 4-40, 9/64" length, and 3/64" hex drive, manufactured to precise engineering tolerances for reliable performance in regulated industries.
