Aspen Fasteners No.6 x 0.75 in. Pan Head Phillips & Slot Combo Drive Type A Full Thread Self-Tapping Sheet Metal Screws - Steel - Zinc Plated - 160000 Pieces - Walmart.com - Walmart.com
Why are there so many types of screw heads (slotted, square, Phillips, Torx, etc.)? - Quora
Why Are There So Many Different Types of Screw Head Styles
Phillips-slotted Screw, Truss Washer Head Screw, phillips slotted
Furniture Specific: Old screws / useful clues
Why are flat head screws still so prevalent since Phillips head ones are so much easier to turn (especially with power drills)? - Quora
20 Types of Screw Heads & Their Purposes - Worst Room