These hex head self-drilling and tapping screws cut their own threads into a material without the use of a pilot hole.

These hex head self-drilling and tapping screws cut their own threads into a material without the use of a pilot hole.
These hex head self-drilling and tapping screws cut their own threads into a material without the use of a pilot hole.
These hex head self-drilling and tapping screws cut their own threads into a material without the use of a pilot hole.
These hex head self-drilling and tapping screws cut their own threads into a material without the use of a pilot hole.
These hex head self-drilling and tapping screws cut their own threads into a material without the use of a pilot hole.
These hex head self-drilling and tapping screws cut their own threads into a material without the use of a pilot hole.
These hex head self-drilling and tapping screws cut their own threads into a material without the use of a pilot hole.
These hex head self-drilling and tapping screws cut their own threads into a material without the use of a pilot hole.
These hex head self-drilling and tapping screws cut their own threads into a material without the use of a pilot hole.