8-18 x 1/2 Unslotted Indented Hex Washer Full Thread Self Drill Screw 410 Stainless Steel M14-2.00 They have a pan head

They have a pan head with a flat top and rounded sides

which provides protection against corrosion

while the hex shape provides a secure grip for tightening

These 3/8" thick heavy-duty thru-hardened SAE washers are made from durable steel and feature a zinc yellow finish for corrosion resistance

8-18 x 1/2 Unslotted Indented Hex Washer Full Thread Self Drill Screw 410 Stainless Steel M14-2.00 They have a pan headThese 8 18 x 1 2" unslotted indented hex washer full thread self drill screws are made of durable 410 stainless steel, providing excellent corrosion resistance. They feature a hex washer head for easy driving and a self drilling tip that eliminates the need for pre drilling, saving time and effort. The full thread design ensures a secure hold in various materials, including metal, wood, and plastic. Suitable for both indoor and outdoor applications,