S-98392A650 Length 3" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with specialized coating ensures long-lasting performance in harsh environments
• Integrated rubber/steel sealing washer creates reliable moisture and dust barriers in sheet metal and wood applications
• External hex drive design provides secure tool engagement and high torque transmission during installation
• Thread forming needle point creates strong, permanent threads without generating chips or debris
• Fully threaded 3" length delivers maximum holding power across the entire fastener engagement
• Right-hand threading with 12 TPI ensures standard compatibility and smooth installation processes
• Optimized for 0.159" drill bits with 0.036" maximum drilling thickness for precise, efficient hole preparation

Professional Applications & Engineering Value

This No. 10 corrosion-resistant sealing tapping screw addresses critical challenges in sheet metal fabrication and wood construction applications where environmental sealing and material integrity are paramount. The thread forming needle-type design eliminates the risk of material cracking in thin-gauge metals while creating stronger, more durable threads compared to conventional cutting screws. The integrated rubber/steel washer assembly provides dual-function performance - the steel component distributes clamping force evenly, while the rubber element compresses to form a permanent seal against moisture, dust, and air infiltration. With its external hex drive and fully threaded configuration, this fastener delivers exceptional pull-out resistance and installation efficiency, making it ideal for HVAC systems, electrical enclosures, outdoor structures, and industrial equipment where reliable, long-term fastening solutions are required.

Specification Summary & Compliance

This thread forming tapping screw features precise Class 2A thread tolerances with a 0.19" thread diameter and 12 threads per inch configuration. Manufactured to industry standards for sheet metal and wood applications, the fastener includes a 1/4" hex head with 0.169" head height for standardized tool compatibility. The sealing washer combines steel reinforcement with rubber sealing elements measuring 0.45" OD. Compatible with No. 21 drill bits (0.159" diameter) and suitable for materials up to 0.036" thickness, this corrosion-resistant coated steel screw meets applicable industry specifications for mechanical fasteners and complies with relevant material safety standards.