The Simpson Strong-Drive® screw (SDS) is a 1/4" diameter structural wood screw ideal for various connector installations as well as wood-to-wood applications. It installs with no predrilling and has been extensively tested in various applications. The new SDS is improved with a patented new easy driving 4CUT™ tip and a corrosion resistant double-barrier coating. New 8" length available.
The SD8 #8x1 1/4" wafer head screw is ideal for miscellaneous fastening applications. The needle point ensures fast starts and deep #2 Phillips drive reduces cam-out and stripping.
- 1/4" x 2-1/2" SDS Screw, 1-1/2" Thread Length
- 200 per Pack
- 4CUT tip reduces install torque & makes driving easier with no predrilling & minimal wood splitting
- Double-barrier coating finish provides corrosion resistance superior to hot-dip galvanization
- 3/8" hex washer head stamped w/No-Equal sign & fastener length for easy identification after install