Hyjoy #14 4 Deck Screws, Self-Tapping Sheet Wood Metal Screw, 130Pcs T25 Star Bits Reamer Screws for Trailers, for Wood to Steel

Material: The deck screws are constructed from steel with -corrosion surface, which can effectively the screws and extend their service life. Wood to Metal: Reamer screws are designed for applications where wood is being fastened to steel or aluminum. The length of the screw does NOT represent the usable length of thread or thickness of wood. #14x4" Maximum wood depth ~2-3/4" Maximum metal thickness the screw can bore ~1/4" Installation: In the threaded section, we added threading process that can effectively resistance when inserting screws. With the self-tapping screw tip, there is no to pre-drill holes; they can be easily driven into soft steel or aluminum. (Note: They will not self-drill through thicker or non-soft materials; these work by pre- holes in wood and letting them self-tap into the metal.) Fragility Feature: After the wood is drilled through, the of the screw contacts the steel and breaks off, then the threads engage. Application: Reamer screws are appropriate for decks, truck beds, docks, horse trailers, utility trailers, ATV trailers, and additional uses.