S-90380A317 Length 1 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior holding power in plastic materials thanks to the tri-lobe shank design that displaces material to create durable, vibration-resistant threads
• Corrosion-resistant zinc-plated steel construction ensures long-term reliability in various industrial environments
• Efficient thread-forming installation eliminates the need for pre-tapped holes, reducing assembly time and labor costs
• Secure #3 Phillips drive provides reliable torque transfer and prevents cam-out during installation for consistent fastening
• Full threading along the 1-1/4" length delivers maximum grip and pull-out resistance throughout the entire engagement area
• Standard pan head design offers a low-profile finish with good bearing surface for stable fastening applications
• Precision-engineered thread form with 10 threads per inch ensures optimal performance in plastic substrates

Professional Applications & Engineering Value

These zinc-plated steel TRS tapping screws are specifically engineered for plastic assembly applications where reliable fastening is critical. The thread-forming design with tri-lobe shank cross-section solves common plastic fastening challenges by creating strong, permanent threads without generating chips or debris that could compromise the assembly. This makes them ideal for plastic components in automotive trim, electrical enclosures, and consumer products where vibration resistance and long-term holding power are essential. The combination of zinc plating for corrosion protection and the #3 Phillips drive ensures these industrial fasteners perform reliably in demanding production environments while maintaining installation efficiency.

Specification Summary & Compliance

These 1/4" TRS tapping screws feature Class 2A thread tolerances with 10 threads per inch and are designed for use with A drill bit size (0.234" diameter). Manufactured to thread-forming standards for plastic applications, these screws are RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring they meet stringent environmental and safety regulations for industrial use. The fully threaded design and blunt tip provide consistent performance across various plastic materials and thicknesses.