S-94564A233 4-40 x 3/16" Set Screws

Key Features & Benefits at a Glance

• Non-conductive and corrosion-resistant nylon plastic ensures safe, reliable performance in electrical and chemical environments without risk of galvanic corrosion.
• Wide temperature tolerance from -40° to 185°F maintains structural integrity and clamping force in fluctuating industrial conditions.
• Precision Class 2A thread fit with UNC coarse spacing delivers consistent engagement and vibration resistance in repetitive assembly applications.
• Compact 3/16" length and headless design enables flush mounting in space-constrained assemblies while providing secure component positioning.
• 3/64" hex drive with flat tip configuration offers tooling compatibility and uniform surface contact for reduced part deformation.
• RoHS 3 compliance meets international environmental standards for hazardous substance restrictions in manufacturing components.
• Right-hand threaded off-white nylon construction provides visual contrast for inspection and simplifies installation in standard rotational systems.

Professional Applications & Engineering Value

Engineered for precision fastening in sensitive assemblies, these 4-40 UNC nylon set screws solve critical challenges in electronics, medical devices, and automotive subsystems. The electrically insulating properties prevent short circuits when securing PCB components or sensor housings, while the flat tip design distributes clamping force evenly without marring shaft surfaces. With temperature resistance spanning -40° to 185°F, they maintain torque retention in thermal cycling environments where metal fasteners would fail due to expansion differentials. The Class 2A thread fit ensures consistent engagement in threaded inserts and aluminum castings, reducing assembly rejects in automated production lines. Ideal for securing knobs, collars, and sliding mechanisms where corrosion-free, lightweight fastening is paramount.

Specification Summary & Compliance

Manufactured to UNC coarse thread standards with Class 2A tolerance for reliable interchangeability. All dimensions conform to inch system requirements including 4-40 thread size, 0.112" diameter, and 3/16" length. Compliant with RoHS 3 (2015/863/EU) regulations restricting hazardous substances. The right-hand thread direction and hex drive compatibility adhere to industry-standard installation practices.