Strong Drive Timber Screws

The Strong-Drive® SDWS Timber screw is designed to provide an easy-to-install, high-strength alternative to through-bolting and traditional lag screws. The Strong-Drive SDWH Timber-Hex SS screw provides a structural wood-to-wood connection, including for ledgers. As a Type 316 stainless steel fasteners, the Strong-Drive SDWH Timber-Hex SS screw offers maximum corrosion protection.


Category: Brand:








  • Bold thread design provides superior holding power
  • Patented 4CUT™ tip ensures fast starts, reduces installation torque and eliminates the need for pre-drilling in most applications
  • Knurled shank section above the threads makes driving easier
  • Under-head nibs offer greater installer control when seating the head
  • Large head provides maximum bearing area
  • Double-barrier coating provides corrosion resistance equivalent to hot-dip galvanization, making it suitable for many exterior and preservative-treated wood applications
  • Available in lengths up to 10″ for maximum versatility
  • Bit included in package






  • Additional Strong-Drive SDWS Timber screw features:
  • Deep, 6-lobe drive reduces cam-out, making driving easier
  • Low-profile head design provides a clean look and less interference after installation210a-2015

    Additional Strong-Drive SDWH Timber-Hex screw features:
  • Large hex-washer head provides excellent bearing area for a secure connection
  • Hex drive reduces cam-outs for easier driving

Material: Strong-Drive SDWS Timber screw—heat-treated carbon steel, Strong-Drive SDWH Timber-Hex SS screw—Type 316 stainless steel

Finish: Double-barrier coating


  • See General Notes.
  • Strong-Drive SDWS Timber screws install best with a lowspeed 1/2″ drill and a T-40 6-lobe bit. The matched bit included with the screws is recommended for best results.
  • Strong-Drive SDWH Timber-Hex SS screws install best with a low-speed 1/2″ drill and a 5/16″ hex driver bit. The matched bit included with the screws is recommended for best results.
  • Pre-drilling is typically not required. Where pre-drilling is necessary, use a 5/32″ drill bit for Strong-Drive SDWS Timber screws and 0.188″ Strong-Drive SDWH Timber-Hex SS screws. Use a 7/32″ drill bit for 0.276″ Strong-Drive SDWH Timber-Hex SS screws.
  • Screw heads that are countersunk flush to the wood surface are acceptable if the screw has not spun out



There are no reviews yet.

Be the first to review “Strong Drive Timber Screws”

Your email address will not be published. Required fields are marked *

Scroll to Top