12-14 x 2 1/2 Square Drive Pan Self Drilling Screw Full Thread Zinc MCT The Grade 5 rating indicates

The Grade 5 rating indicates their high strength and resistance to wear

The screw has a truss head with a Phillips drive

preventing unauthorized access or loosening

The 16-millimeter length refers to the length of the screw from the underside of the head to the tip

These 8 x 1 3/4-inch square recess drive bugle head coarse thread drywall screws are designed for use in drywall applications

12-14 x 2 1/2 Square Drive Pan Self Drilling Screw Full Thread Zinc MCT The Grade 5 rating indicatesThese 12 14 x 2 1 2" square drive pan head self drilling screws are full thread and zinc plated. They are designed for use in metal applications and have a sharp point that drills its own hole, eliminating the need for pre drilling. The square drive head provides a secure grip for driving, and the zinc plating offers corrosion resistance. These screws are ideal for a variety of projects, including roofing, siding, and metal framing.