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The SDWC structural wood screw can be used to fasten trusses and rafters to top plates without hardware. (The hardware shown in the photo is merely a guide.) The screw has a fully threaded shank, which ensures that its entire length engages the work. No predrilling is needed, and the head countersinks fully into the top plate. It’s sold in 4 1/2- and 6-inch lengths for $33 per box (50 pcs) and has been tested to meet ICC-ES AC233 (screw) and ICC-ES AC13 (roof-to-wall assembly) standards.

Simpson Strong-Tie, 800/999-5099, strongtie.com.