10-16 x 3/8 Indented Hex Unslotted Self Tapping Screw Type AB Fully Threaded Zinc M3 They have a hex washer

They have a hex washer head with an indented drive that provides a secure hold

The 6-lobe flat head provides a secure grip

This 8-32 x 2 1/2 inch fully threaded zinc machine screw features an indented hex head for a secure grip during installation

Its 8-32 thread size ensures a secure hold in materials such as metal

which provides a secure hold in a variety of materials

10-16 x 3/8 Indented Hex Unslotted Self Tapping Screw Type AB Fully Threaded Zinc M3 They have a hex washerThese 10 16 x 3 8" Indented Hex Unslotted Self Tapping Screws Type AB are fully threaded and zinc plated for corrosion resistance. They have a hex head with an indented drive for a secure grip, and their self tapping design eliminates the need for pre drilling. These screws are ideal for a variety of applications, including metal, plastic, and wood.