S-90380A145 Length 5/16" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding environments
• Efficient thread forming action with TRS tri-lobe shank design creates strong, permanent threads in plastic without chips
• Optimized plastic engagement through precise 0.138" thread diameter and 19 threads per inch for maximum pull-out resistance
• Quick installation with Phillips No. 2 drive that provides reliable torque transfer and reduces driver slippage
• Versatile pan head design offers excellent bearing surface and clean appearance for finished plastic assemblies
• Full threading capability ensures consistent holding power along the entire 5/16" length for secure fastening
• Regulatory compliance meets RoHS 3 and REACH standards for use in regulated industries and global markets

Professional Applications & Engineering Value

These No. 6 x 5/16" zinc-plated steel tapping screws are engineered specifically for plastic assembly applications where traditional fastening methods fail. The TRS thread forming technology with tri-lobe shank cross-section displaces plastic material during installation, creating strong, vibration-resistant threads without generating debris that could compromise electronic components. The thread forming method eliminates the need for pre-tapped holes while providing superior resistance to loosening under dynamic loads. The zinc-plated steel construction ensures durability in environments where moisture or chemical exposure might degrade unprotected fasteners, making these Phillips drive screws ideal for automotive trim, electrical enclosures, consumer products, and industrial equipment where reliable plastic fastening is critical to product integrity.

Specification Summary & Compliance

These precision-engineered tapping screws feature a 0.138" thread diameter with 19 threads per inch, fully threaded 5/16" length, and standard pan head profile with 0.27" diameter. Manufactured to exacting standards for thread forming applications in plastic materials, they require a 1/8" pilot hole for optimal performance. The screws maintain dimensional accuracy suitable for high-volume assembly operations and are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring they meet the strictest international standards for hazardous substance restrictions.