4″ SDWH Timber Hex Screw SDWH19400DB (800)
0.195 X 4″ with 2-3/8″ of thread length Strong-Drive SDWH Timber Hex Screw, 800 pack.
Ideal for structural and general-purpose fastening applications where a hex-head drive is preferred. The SDWH structural wood screws are ideal for the contractor and do-it-yourselfer alike.
Bold thread design that provides superior holding power
Patented 4CUT™ 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 (0.64″ head dia.)
Size identification on all SDWH screw heads
Double-barrier coating provides corrosion resistance equivalent to hot-dip galvanization, making it suitable for certain exterior and preservative-treated wood applications, as described in the evaluation report.
Structural Wood-to-Wood Connections Including Ledgers