S-90077A194 Length 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, extending service life in demanding industrial environments.
• Efficient installation with dual Phillips/Slotted drive options, providing flexibility and reducing tooling requirements.
• Reliable thread-forming performance for secure, vibration-resistant fastening in sheet metal without the need for pre-tapped holes.
• Optimized for thin materials, capable of drilling up to 0.025" thickness, ideal for precision sheet metal assemblies.
• Full threading design ensures maximum grip and uniform load distribution along the entire fastener length.
• Compliance with environmental standards, meeting RoHS 3 and REACH regulations for safe, sustainable industrial use.
• Versatile A/AB tapping screw type with standard pan head, offering a low-profile, secure fit for various applications.

Professional Applications & Engineering Value

These No. 8 x 1/2" zinc-plated steel tapping screws are engineered to address common challenges in sheet metal fabrication, such as material splitting and loose fasteners. The thread-forming design creates strong, permanent threads in ductile metals, eliminating the need for separate tapping operations and reducing assembly time. The zinc plating provides a protective barrier against rust and corrosion, ensuring long-term reliability in humid or outdoor settings. With a Phillips/Slotted drive, these screws offer versatility for both automated and manual installation, making them ideal for HVAC systems, electronic enclosures, and automotive panels where vibration resistance and durability are critical.

Specification Summary & Compliance

This product features a No. 8 screw size with a 0.164" thread diameter and approximately 15 threads per inch, ensuring precise fit and consistent performance. Manufactured to A/AB tapping screw standards with a fully threaded, right-hand design, it is compatible with a No. 29 drill bit (0.136" diameter) for optimal pilot hole preparation. The screws comply with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, affirming their safety for industrial use and environmental responsibility.