Hyjoy #12 2-1/2" Deck Screws, Self-Tapping Sheet Metal Wood Screw, 286Pcs T25 Star Bits Reamer Screws for Trailers, for Wood to Steel Connection

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 wood to steel or aluminum. The screw length does NOT indicate the usable thread length or wood thickness. #12 2-1/2" Maximum wood depth ~1-1/8" Maximum metal thickness the screw can penetrate ~3/16" 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.