S-90122A341 1/4"-20 x 2" Tapping Screws

Key Features & Benefits at a Glance

• Eliminates pre-drilling requirements with integrated No. 4 self-drilling tip that penetrates up to 0.236" thickness in aluminum and sheet metal
• Superior corrosion resistance through ultra-corrosion-resistant alloy steel coating for extended service life in demanding environments
• Enhanced holding power with thread forming design that creates stronger, more secure fastening in ductile materials
• Increased installation efficiency with external hex drive and flanged head design for faster driving and reduced assembly time
• Reliable coarse thread performance with UNC 1/4"-20 threading that provides excellent pull-out resistance and vibration resistance
• Full-length threading ensures maximum engagement and load distribution along the entire screw length
• Environmental compliance with RoHS 3 standards for use in regulated industries and applications

Professional Applications & Engineering Value

These thread forming tapping screws with self-drilling capability are engineered specifically for aluminum and sheet metal applications where traditional fastening methods require multiple steps. The ultra-corrosion-resistant alloy steel construction prevents degradation in harsh environments, while the CSD thread forming design creates precise mating threads without generating chips or debris. The flanged hex head provides superior clamp load distribution and eliminates the need for separate washers, significantly reducing assembly time and labor costs. These 1/4-20 UNC coarse thread screws deliver exceptional vibration resistance and pull-out strength, making them ideal for structural components, enclosures, and mechanical assemblies where reliability is critical.

Specification Summary & Compliance

Manufactured to precise dimensional standards with UNC coarse threading (1/4"-20) and Class 2A thread tolerances for consistent performance. Features include fully threaded design, right-hand thread direction, and external hex drive compatibility. The screws comply with RoHS 3 (2015/863/EU) regulations for hazardous substance restrictions and are engineered for optimal performance in aluminum and sheet metal applications up to 0.236" thickness without pre-drilling requirements.