S-90434A113 Length 1" Tapping Screws

Key Features & Benefits at a Glance

• Superior thread forming in plastic materials thanks to the tri-lobe shank design that creates strong, permanent threads without pre-tapping
• Enhanced corrosion resistance provided by zinc-plated steel construction for extended service life in industrial environments
• Secure installation and reduced cam-out with Phillips No. 3 drive that ensures proper torque transfer during assembly
• Maximum holding power through fully threaded design that distributes clamping force evenly along the entire screw length
• Flush mounting capability with standard 82° flat head profile that sits perfectly countersunk in plastic components
• Reliable performance in plastic assemblies with specialized TRS thread forming design that prevents material cracking and stripping
• Industry compliance assurance meeting RoHS 3 and REACH environmental standards for global manufacturing applications

Professional Applications & Engineering Value

These 1/4" TRS tapping screws are specifically engineered for plastic assembly applications where traditional fastening methods often fail. The zinc-plated steel construction provides essential corrosion protection while maintaining the strength needed for durable connections. The innovative tri-lobe shank cross-section and thread forming design eliminate the need for pre-tapped holes, reducing installation time and labor costs. As the screw advances into pre-drilled plastic components (using recommended 0.234" drill bit size), the TRS thread forming action displaces material to create precise mating threads that resist vibration loosening and provide exceptional pull-out strength. The Phillips flat head configuration ensures flush mounting with standard 82° countersinks, making these screws ideal for electronics enclosures, automotive trim, consumer products, and industrial equipment where appearance and reliability matter.

Specification Summary & Compliance

These inch-system tapping screws feature precise 1/4" thread diameter with 10 threads per inch and fully threaded blunt tip design. Manufactured to TRS (Thread Rolling Screw) standards with tri-lobe shank geometry for optimal thread forming performance in plastic materials. The zinc-plated steel construction meets industry standards for corrosion resistance while maintaining Class 2A thread tolerances. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring they meet the latest requirements for hazardous substance restrictions in industrial applications worldwide.