10-16 x 3 1/2 6 Lobe Modified Truss head Self Drilling Screw Full Thread Zinc NT6 and the 3 1/2" length

and the 3 1/2" length is perfect for most projects

This versatile screw is ideal for heavy-duty applications in construction

which provides a secure grip for tightening

The full thread design allows for maximum holding power and versatility

10-16 x 3 1/2 6 Lobe Modified Truss head Self Drilling Screw Full Thread Zinc NT6 and the 3 1/2" lengthThese 10 16 x 3 1 2" 6 Lobe Modified Truss head Self Drilling Screws are full thread and zinc plated. They have a sharp point that drills its own pilot hole, making them ideal for use in metal applications. The 6 lobe drive provides a secure fit and prevents cam out. These screws are also full thread, which means they provide maximum holding power. The zinc plating provides corrosion resistance and makes them suitable for outdoor use.