The disappearing act... With its exceptionally small head the Trim Head screw virtually disappears into the material when countersunk. It offers the neatest look when screwing down decking and is ideal for any application where an inconspicuous screw head is preferable. For best results drive in at half speed. When screwing down decking some less stable wood species may require the screw to be driven in at a slight angle to prevent uplift. The revolutionary Climatek coating is featured exclusively on GRK products. With a gold coated appearance it is the only such plating which offers long life corrosion protection in exterior climates. Salt spray testing has exceeded 1,200 hours and 30 Kesternich cycles." Climatek Gold matches nicely with virtually all woods and other surfaces. Eliminate unsightly green, gray or black screw heads without reducing your rust protection. GRK screws are almost indistinguishable from brass screws, once installed into a surface. This high class appearance will certainly add to the beauty of your project, whatever or wherever it may be.