Bold thread design that provides superior holding power
4CUT(TM) tip that ensures fast starts, reduces installation torque and eliminates the need for pre-drilling in most applications
Under-head nibs that offer greater control when seating the head
Large washer head provides maximum bearing area (0.75" head dia.)
Size identification on all SDWS screw heads
Double-barrier coating provides corrosion resistance equivalent to hot-dip galvanization, making it suitable for certain exterior and preservative-treated wood applications
Ideal for structural wood-to-wood connections including ledgers