8-18 x 3/8 Indented Hex Slotted Self Tapping Screw Type AB Fully Threaded Zinc MTT It has a hex head

It has a hex head and a coarse thread pitch of 11 threads per inch

Secure your outdoor structures with these robust 6 x 1 Bugle Square Drive Coarse Thread Sharp Point Deck Screws Dacrotized

4-24 x 3/8 Slotted Pan Self Tapping Screw Type AB Fully Threaded Zinc is a screw with a pan head and a slotted drive

while the Phillips drive allows for easy installation

8-18 x 3/8 Indented Hex Slotted Self Tapping Screw Type AB Fully Threaded Zinc MTT It has a hex headThese 8 18 x 3 8 Indented Hex Slotted Self Tapping Screw Type AB Fully Threaded Zinc screws are designed for use in a variety of applications. They are made of zinc plated steel for corrosion resistance and have a fully threaded design for maximum holding power. The indented hex slot allows for easy driving with a hex key or screwdriver. These screws are ideal for use in metal, plastic, and wood.