Simpson Strong-Tie #12 x 1-3/4" Self-Drilling TB Wood-To-Steel Screw, Square Flat Head - Black Phosphate, Qty. 50 Grade 55 Threaded Rod 6-Hole Gusset Corner Channel Connection

6-Hole Gusset Corner Channel Connection Left-Hand - Electro-Galvanized allows channels to be connected perpendicularly and can be used to create joints along a vertical piece of strut

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Simpson Strong-Tie #12 x 1-3/4" Self-Drilling TB Wood-To-Steel Screw, Square Flat Head - Black Phosphate, Qty. 50 Grade 55 Threaded Rod 6-Hole Gusset Corner Channel ConnectionThe Simpson Strong Tie TBP1245R50 Strong Drive TB Wood to Steel Screw with black phosphate coating is designed for high performance fastening of wood to steel in interior, dry environments. This structural screw features a flat head with under head nibs for clean countersinking, a #4 drill point with wings to eliminate wood splitting, and a 6 lobe recess for controlled driving torque. The black phosphate finish provides smooth driving and a clean