S-94564A271 4-40 x 1 3/16" Set Screws

Key Features & Benefits at a Glance

• Corrosion-resistant nylon plastic construction ensures long-lasting performance in humid or chemical environments, eliminating rust and galvanic corrosion risks.
• Wide temperature tolerance from -40° to 185°F maintains dimensional stability and clamping force in fluctuating thermal conditions.
• Headless hex drive design with 3/64" drive size allows for flush mounting in confined spaces while providing secure tool engagement.
• 4-40 UNC coarse threads with Class 2A fit deliver rapid installation and reliable holding power in plastic and soft material applications.
• Flat tip configuration distributes pressure evenly to prevent damage to shaft surfaces during securement.
• RoHS 3 compliance meets stringent environmental regulations for use in electrical and consumer products.
• Off-white color provides visual contrast for inspection and blends discreetly in plastic assemblies.

Professional Applications & Engineering Value

Engineered for electrical enclosures, plastic gear assemblies, and sensitive instrumentation, this nylon plastic set screw solves critical challenges in non-conductive and corrosion-prone applications. The headless hex drive design enables seamless integration where protruding fasteners would interfere with moving components or aesthetic requirements. With 4-40 UNC coarse threads and Class 2A fit, installation torque is optimized to prevent stripping in softer materials while maintaining vibration resistance. The temperature-resistant nylon material ensures consistent performance from sub-zero conditions to elevated operational heats, making it ideal for outdoor equipment and automotive plastic components. Its flat tip design minimizes surface marring on shafts and gears, preserving critical tolerances in precision assemblies.

Specification Summary & Compliance

This set screw maintains Class 2A thread fit tolerances per UNC standards with coarse thread spacing for rapid engagement. Manufactured to consistent dimensional specifications with 1-3/16" length and 0.112" thread diameter. Fully compliant with RoHS 3 (2015/863/EU) regulations for restricted substance control, ensuring suitability for global markets and environmentally conscious applications.