Simpson Strong-tie Strong-drive Sds 1/4 In. X 4-1/2 In. Heavy-duty Connector Screw (800-count)

1/4 In. diameter structural wood screw is ideal for various connector installations and wood-to-wood applications. No predrilling. Easy driving 4CUT tip has a square core and serrated threads to reduce installation torque and corrosion-resistant double barrier coating equivalent to hot-dip galvanization. 3/8 In. hex washer head is stamped with the No-Equal sign and faster length for easy identification after installation.