S-90077A321 Length 2 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, ensuring long-lasting performance in demanding industrial environments.
• Excellent torque transfer and reduced tool slippage thanks to the dual Phillips/Slotted drive design, allowing for efficient installation.
• Secure, vibration-resistant fastening in sheet metal due to the thread forming (Type A/AB) tapping method, which creates strong threads without pre-drilling in many cases.
• Wide grip range and versatile application enabled by the 2-1/2" length and fully threaded design, providing consistent holding power.
• Easy alignment and a low-profile, rounded pan head that sits flush against surfaces, offering a neat finish and reducing snagging.
• Reliable performance in thin materials with a maximum drilling thickness of 0.025", ideal for standard sheet metal fabrication.
• Compliance with major environmental and safety regulations, including RoHS 3 and REACH, ensuring they meet global industrial standards.

Professional Applications & Engineering Value

These No. 14 zinc-plated steel tapping screws are engineered to address common challenges in sheet metal applications, such as material splitting and loose fasteners under vibration. The thread forming technology (Type A/AB) displaces material to create precise, strong threads, eliminating the need for tapped holes and reducing assembly time. The zinc plating provides a durable barrier against rust and corrosion, extending the life of assemblies in humid or outdoor settings. With a Phillips/Slotted drive, installers can apply high torque without cam-out, ensuring reliable fastening in HVAC, automotive, and construction projects where metal fasteners must withstand dynamic loads.

Specification Summary & Compliance

This screw features a thread diameter of 0.242" with approximately 10 threads per inch and a Class 2A thread fit for standard tolerance. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety. The pan head style and fully threaded design adhere to common industrial specifications for tapping screws in sheet metal, providing consistent performance and ease of use.