Steel Self-Drilling Screw With Black Phosphate Finish, Modified Truss Head, Low Profile Dome, Phillips Drive, No 2 Drill Point, Thread Size 8-18, 1-1/4 Inch Length, Integral Washer, Corrosion Resistant, Pack Of 100

Black Phosphate Steel Self-Drilling Screw, 1-1/4 in ✔️ Black phosphate finish, 8-18 thread, 1-1/4 in length, Pack 100

This steel self-drilling screw is designed for metal-to-metal assemblies where fast installation and strength matter. The black phosphate coating adds corrosion resistance and lubricity, helping parts slide together smoothly. The modified truss head is extra wide with a low-profile dome and an integral washer for a clean finish. The Phillips drive reduces cam-out and helps prevent over-tightening during installation.

✅ Material: Steel with black phosphate finish
✅ Head: Modified truss, extra-wide low-profile dome with integral washer
✅ Drive: Phillips, anti-over-tightening feature to protect threads
✅ Size: No 2 drill point, 8-18 thread, 1-1/4 in length (31.75 mm)

💡 What is a self-drilling screw used for in metal assemblies? Self-drilling screws are handy fasteners that drill their own hole and thread as they go, enabling quick, dependable metal-to-metal or metal-to-wood joins.

- Quick metal-to-metal fastening with fewer tools and steps - Effective for panels, brackets, and structural metal work - Provides strong clamping with built-in threads in a single pass