S-94613A112 4-40 x 5/8" Plastic Hex Head Screws
Plastic Hex Head 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
- Corrosion-free performance with durable nylon plastic construction, ideal for humid or chemical environments without risk of rust.
- Wide temperature tolerance from -40°F to 185°F, ensuring reliable operation in varied industrial conditions.
- Easy installation and removal thanks to the external hex drive and coarse UNC threads, reducing assembly time.
- Consistent thread engagement with Class 2A fit and full threading, providing secure fastening and vibration resistance.
- RoHS 3 compliance for safe use in regulated industries, meeting environmental standards without hazardous substances.
- Lightweight and non-conductive properties, perfect for electrical or weight-sensitive applications.
- Precise head dimensions (1/16" height, 3/16" width) for standard tool compatibility and uniform torque application.
Professional Applications & Engineering Value
These 4-40 UNC nylon plastic hex head screws address common industrial challenges by combining nylon material resilience with precise coarse thread design. The fully threaded right-hand configuration ensures maximum grip in plastics, composites, or light metal assemblies, preventing loosening under stress. With an external hex drive, they enable quick servicing in tight spaces, while the temperature-resistant range from -40°F to 185°F suits outdoor equipment, automotive components, and electronic enclosures. The off-white color and RoHS 3 compliance make them safe for consumer products and regulated sectors, offering a reliable, non-corrosive alternative to metal fasteners.
Specification Summary & Compliance
This screw adheres to UNC coarse thread standards with a Class 2A thread fit for consistent dimensional accuracy. Key specs include a 4-40 thread size, 0.112" thread diameter, and 5/8" length. It is manufactured to meet RoHS 3 (2015/863/EU) regulations, ensuring environmental safety without restricted substances. The right-hand thread direction and fully threaded design comply with general industrial fastening requirements for reliability and ease of use.
