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The Simpson Strong-Drive (SDS) is a 1/4" diameter structural wood screw connector ideal for various installations as well as wood-to-wood applications. Installs with no predrilling and has been extensively tested in various applications The new SDS has been enhanced with a new easy-to-drive patented 4 CUT tip and a double-barrier corrosion resistant coating.The patented 4 Cut Tip has a square core and serrated threads to reduce installation torque and facilitate driving without predrilling and with minimal wood splitting A new double-barrier coating finish provides superior corrosion resistance to hot-dip galvanizing One screw can now handle interior, exterior and certain pressure lumber applications -treated. 3/8" Hex washer head is stamped with no-equal length sign, and fastened for easy indentification after installation.
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