S-97246A114 1/4"-20 x 5" Tapping Screws

Key Features & Benefits at a Glance

• Corrosion-resistant performance with galvanic-barrier coated 18-8 stainless steel construction, ideal for harsh industrial environments.
• Superior drilling efficiency with No. 5 drill tip design, capable of penetrating up to 1/2" thick steel and sheet metal without pre-drilling.
• Enhanced holding power through thread forming (CSD type) and partial threading, reducing material stress and preventing loosening.
• Easy installation and high torque capability with external hex head drive and 3/8" head width for secure tool engagement.
• Flanged design for increased load distribution, minimizing surface damage and providing a secure, vibration-resistant fit.
• Wide material compatibility for use in steel, stainless steel, and sheet metal applications, streamlining inventory needs.
• Reliable coarse UNC threading (1/4"-20) ensures quick assembly and strong grip in various metal substrates.

Professional Applications & Engineering Value

Engineered for demanding metal fabrication and construction projects, this 1/4"-20 UNC coarse thread tapping screw eliminates the need for separate drilling and tapping steps, saving time and labor costs. The galvanic-barrier coated 18-8 stainless steel resists galvanic corrosion when joined with dissimilar metals, extending service life in outdoor or corrosive settings. Its thread forming (CSD) design creates strong, precise threads in ductile materials like steel and sheet metal, reducing the risk of strip-out and ensuring consistent holding power. The flanged hex head and No. 5 drill tip provide reliable fastening in structural frames, HVAC systems, and machinery assemblies, making it a versatile choice for industrial maintenance and manufacturing.

Specification Summary & Compliance

This screw adheres to UNC coarse thread standards (1/4"-20) with right-hand threading and partial threading for optimized grip. Manufactured from 18-8 stainless steel with a galvanic-barrier coating, it meets common industry requirements for corrosion resistance and mechanical strength. The thread forming (tapping) method follows CSD type specifications, ensuring compatibility with standard installation practices. Dimensions include a 5" length, 3/8" head width, and 0.5" flange diameter, providing precise fit in designated applications. Complies with RoHS and REACH directives for environmental safety, suitable for use in steel, stainless steel, and sheet metal up to 1/2" thickness.