10-16 x 5 Unslotted Indented Hexwasher Self Drill Screw Full Thread Zinc & Bake LASTI and it has a flange

and it has a flange that helps to distribute the load evenly

The indented hex washer head provides a good bearing surface for the washer

which prevents it from loosening due to vibration or other forces

making it suitable for securing large

making them ideal for use in applications where frequent access to the rack is required

10-16 x 5 Unslotted Indented Hexwasher Self Drill Screw Full Thread Zinc & Bake LASTI and it has a flangeThese 10 16 x 5 Unslotted Indented Hexwasher Self Drill Screw Full Thread Zinc & Bake are designed for use in a variety of applications. They are made of steel and have a zinc and bake finish for corrosion resistance. The screws have a self drilling tip that eliminates the need for pre drilling, making them easy to install. The hex washer head provides a large bearing surface for increased torque and prevents the screw from over tightening. These