6-19 x 1 3/4 6-Lobe Pan Plastite Alternative 48-2 Fully Threaded Zinc And Wax BWBZ while the indented hex head

while the indented hex head allows for secure tightening with a hex key

This 10-24 x 3 1/2 Phillips Round Machine Screw is fully threaded and made of zinc

25 DIN 934 Metric 10

They have a hex washer head with an indented drive for increased torque and a self-tapping design that eliminates the need for pre-drilling

This 3/8-16 x 7/8 Serrated Hex Flanged Washer Full Thread Screw Case Hard Zinc is a versatile and durable fastener designed for a variety of applications

6-19 x 1 3/4 6-Lobe Pan Plastite Alternative 48-2 Fully Threaded Zinc And Wax BWBZ while the indented hex headThe 6 19 x 1 3 4 6 Lobe Pan Plastite Alternative 48 2 Fully Threaded Zinc And Wax is a high quality, durable fastener designed for use in a variety of applications. It is made from zinc and wax, which provides excellent corrosion resistance and strength. The fully threaded design ensures a secure hold, and the 6 lobe pan head provides a finished appearance. This fastener is ideal for use in automotive, marine, and industrial applications.