4-24 x 3/8 Unslotted Indented Hexwasher Self Drill Screw Full Thread Zinc & Bake 1 1/8-7 NE They have a Phillips drive

They have a Phillips drive and an undercut head that allows them to be countersunk below the surface of the material

and it has a threaded hole in the center

With a diameter of 3/8" and a length of 1 3/8"

this hex lag screw delivers reliable performance and long-lasting durability

It is also commonly used in DIY projects

4-24 x 3/8 Unslotted Indented Hexwasher Self Drill Screw Full Thread Zinc & Bake 1 1/8-7 NE They have a Phillips driveThese 4 24 x 3 8 inch unslotted indented hex washer self drilling screws are full thread and coated with zinc and bake for added durability. They are designed with a hex washer head that provides a wide bearing surface for increased torque and reduced risk of stripping. The self drilling point eliminates the need for pre drilling, saving time and effort during installation. These screws are ideal for use in a variety of applications, including metal,