S-90420A614 Length 1" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with galvanic-barrier coated 18-8 stainless steel construction, ideal for harsh environments and outdoor applications
• Efficient installation without pre-drilling thanks to the integrated drilling tip that penetrates up to 0.155" thickness in steel and sheet metal
• Enhanced load distribution and vibration resistance from the integrated flange design, reducing the need for separate washers
• High-torque capability and secure fastening with the external hex head design, compatible with standard wrench and socket tools
• Strong, permanent thread formation using BSD thread-forming technology that creates precise mating threads in ductile materials
• Full-length threading ensures maximum grip and holding power across the entire fastener length
• Broad material compatibility specifically engineered for steel, stainless steel, and sheet metal applications

Professional Applications & Engineering Value

These 1/4"-14 TPI flanged hex head tapping screws deliver exceptional engineering value by eliminating multiple assembly steps in industrial applications. The thread-forming BSD design creates strong, wear-resistant threads in ductile metals without chip formation, preventing contamination in sensitive environments. The galvanic-barrier coated 18-8 stainless steel construction provides critical protection against galvanic corrosion when joining dissimilar metals, while the integrated drilling tip penetrates up to 0.155" thickness without pilot holes. This combination significantly reduces installation time and labor costs in steel framework, stainless steel enclosures, and sheet metal fabrication where corrosion resistance and structural integrity are paramount. The external hex drive ensures high torque application without cam-out, making these screws ideal for automated assembly systems and high-volume production environments.

Specification Summary & Compliance

These tapping screws feature precise 1/4"-14 TPI right-hand threads with standard Class 2A thread tolerances and BSD (Thread Forming) screw type compliance. Manufacturing follows industry standards for hex head flanged screws with external drive configuration, 1" length, and 0.5" flange diameter. The construction utilizes 18-8 stainless steel with specialized galvanic-barrier coating for enhanced corrosion protection. These industrial fasteners comply with RoHS and REACH environmental directives and are manufactured to meet applicable ASME standards for quality and performance consistency.