The STHCT1478 Daggerz™ 1/4" x 7/8" Self-Drilling Screw with hex head and Dagger-Guard coating is built for fast, secure connections in light to medium-gauge steel. With an integrated drill point and serrated threads, these screws eliminate the need for predrilling and drive smoothly through metal substrates, saving time on the job.

Featuring Dagger-Guard corrosion protection, these screws are designed for exterior applications where rust resistance is critical. The hex washer head delivers high clamping force and a clean, flush finish, making this fastener ideal for metal framing, HVAC, and electrical applications.

Key Features:

• Self-drilling point eliminates the need for predrilling
• 1/4" hex washer head provides excellent driving stability
• Dagger-Guard coating offers enhanced corrosion protection
• Designed for metal-to-metal fastening in steel up to 12 gauge
• Bulk pack of 4,000 for high-volume jobs

Applications:

• Light to medium-gauge steel framing
• Electrical boxes and conduit fastening
• HVAC duct installation
• General exterior metal construction
• Commercial and industrial projects

Installation Notes:

• Use with a 1/4" hex driver bit for optimal torque transfer
• No pilot hole needed for steel up to 12 gauge
• Drive until the head is snug against the surface without overdriving
• Compatible with standard screw guns and impact drivers