S-94690A724 4-40 x 1" Plastic Binding Head Slotted Screws

Key Features & Benefits at a Glance

• Excellent corrosion resistance due to nylon plastic construction, eliminating rust and reducing maintenance in humid or chemical environments.
• Secure, reliable fastening with Class 2A thread fit, ensuring consistent engagement and reducing the risk of loosening under vibration.
• Wide rounded binding head design provides a larger bearing surface for improved load distribution and prevents pull-through in softer materials.
• Broad temperature tolerance from -40° to 185°F, maintaining integrity and performance in varied operational climates.
• Non-conductive and electrically insulating, making it ideal for electrical assemblies to prevent short circuits and enhance safety.
• RoHS 3 compliance ensures environmental safety and meets international regulatory standards for hazardous substances.
• Slotted drive for simple installation with standard tools, facilitating quick assembly and disassembly without specialized equipment.

Professional Applications & Engineering Value

Engineered for demanding industrial settings, this 4-40 UNC nylon plastic rounded head screw addresses common challenges in electrical and binding applications. Its nylon material offers inherent corrosion resistance, eliminating the need for additional coatings and reducing long-term costs in corrosive environments. The coarse UNC thread and Class 2A fit provide reliable grip in plastics and softer substrates, minimizing stripping and ensuring durable connections. The wide rounded binding head distributes clamping force evenly, preventing damage to sensitive components like wire harnesses or panels. Ideal for electrical enclosures, electronic device assembly, and bookbinding equipment, this screw delivers consistent performance where non-conductive, temperature-resistant fasteners are critical to operational safety and efficiency.

Specification Summary & Compliance

This screw adheres to UNC coarse thread standards with a Class 2A thread fit for precise dimensional accuracy and reliable assembly. It is manufactured in accordance with inch system measurements and is fully threaded for maximum holding power. Compliance with RoHS 3 (2015/863/EU) ensures it is free from hazardous substances, supporting environmentally responsible sourcing and use in global markets.