S-90628A340 12-24 x 3" Tapping Screws

Key Features & Benefits at a Glance

• Corrosion-resistant coated steel construction ensures long-lasting performance in harsh industrial environments, reducing replacement costs and downtime.
• Integrated steel/rubber sealing washer provides reliable moisture and dust sealing, protecting assemblies from environmental damage.
• Thread forming (CSD) tapping method creates strong, secure threads in steel and sheet metal without pre-drilling, saving time and labor.
• Precision drilling tip (No. 5) allows for easy penetration and efficient installation in materials up to 1/2" thick, enhancing project speed.
• External hex drive and hex head design offers high torque capability and secure tool engagement for reliable, vibration-resistant fastening.
• Fully threaded UNC coarse thread ensures maximum grip and holding power in a wide range of metal applications.
• Durable flat washer with steel/rubber composition distributes load evenly and maintains seal integrity under stress.

Professional Applications & Engineering Value

This 12-24 UNC coarse thread tapping screw is engineered for demanding steel and sheet metal applications, where corrosion resistance and sealing are critical. The corrosion-resistant coated steel material prevents rust and degradation, extending service life in outdoor or high-moisture environments. Its thread forming design eliminates the need for separate tapping operations, reducing assembly time and minimizing tool wear. The integrated sealing washer combats leaks and contamination, making it ideal for HVAC, construction, and industrial machinery. With a drilling tip that penetrates up to 1/2" thickness, it streamlines installation in thick materials, enhancing efficiency and reliability in B2B procurement for durable fastening solutions.

Specification Summary & Compliance

This screw adheres to UNC coarse thread standards with a thread size of 12-24 and diameter of 0.216", ensuring precise fit and Class 2A tolerance for consistent performance. It complies with general industrial thread forming specifications (CSD type) and is manufactured for use in steel and sheet metal. The product meets common industry requirements for quality and may conform to RoHS and REACH environmental standards, supporting safe and sustainable operations.