Strong-Drive ® SDWH TIMBER-HEX Screws SDWH27600GR30. The hot-dip galvanized Strong-Drive® line of structural screws are suitable for heavy-duty marine and coastal applications. The SDWH TIMBER-HEX HDG screw has a SawTooth point and oversized integral washer that makes for fast installations; no predrilling or separate washer needed.
eBay