S-90286A144 Length 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior holding power with flanged design that distributes load evenly and prevents pull-through in thin sheet metal applications
• Efficient thread-forming installation creates strong, permanent threads in sheet metal without requiring pre-tapped holes
• Dual-drive versatility with external hex/slotted head accommodates various installation tools for flexible assembly options
• Optimized material engagement with fully threaded design and pointed tip ensures maximum thread contact and secure fastening
• Precision compatibility with No. 32 drill bits (0.116" diameter) for accurate hole preparation and reliable performance
• Environmental compliance assurance meets RoHS 3 and REACH regulations for safe use in regulated industries
• Time-saving installation with right-hand threading and standard No. 6-18 thread pitch for quick, familiar assembly processes

Professional Applications & Engineering Value

These No. 6-18 hex head tapping screws deliver exceptional value in sheet metal fabrication where traditional fastening methods often fail. The thread forming Type A design eliminates the need for separate tapping operations, creating strong internal threads directly in the parent material through cold forming. This process work-hardens the surrounding metal, resulting in superior thread strength and resistance to vibration loosening. The combination of fully threaded construction and pointed tip ensures immediate engagement and maximum thread contact throughout the 1/4" length, providing reliable performance in applications up to 0.025" material thickness. The flanged hex head offers both increased bearing surface and tool accessibility, making these industrial screws ideal for HVAC systems, electronic enclosures, and automotive components where space constraints and vibration resistance are critical concerns.

Specification Summary & Compliance

This No. 6-18 x 1/4" tapping screw features a 0.138" thread diameter with 18 threads per inch in right-hand direction, manufactured to standard inch system specifications. The external hex/slotted drive provides versatile installation options while the flanged design enhances clamping force distribution. The screws are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance. Designed specifically for use with No. 32 drill bits (0.116" diameter), these thread forming Type A screws deliver reliable performance in sheet metal applications with maximum 0.025" drilling thickness requirements.