No. 6 x 1/2" Stainless Truss Head Phillips Wood Screw, (100 pc), 18-8 (304) Stainless Steel Sheet Metal Screws, Type A Point, Plain Finish by Bolt Dropper: Amazon.com: Industrial & Scientific
Short And Fat Security Screws | Bryce Fastener | Blog
Types of Screw Heads and Their Uses
Everbilt #12-24 x 1/2 in. Phillips Flat Head Zinc Plated Machine Screw (25-Pack) 805492 - The Home Depot