4-4 A194 2H Heavy Hex Nut Plain

#56 Heavy Duty Jobber Drill Bit

1/4 x 2 Mushroom Spike 316 SS (100)

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7 x 2 1/2 Simpson Trim-Head Wood Decking Screws - Square Drive 305 SS - 5 lbs Pack (630) Phillips Flat Machine Screws Type F Zinc Plated 4-4 A194 2H Heavy Hex7 x 2 1 2 Simpson Trim Head Wood Decking Screws Square Drive 305 SS 5 lbs Pack (630) . The type 17 tip provides fast starting and resists splitting in hardwood. Coarse threads run approximately 2 3 up the shank to draw the decking tightly to the substrate. Pre drilling is recommended near board ends to prevent splitting. #1 Square Drive All #7 diameters and 9 x 3 1 2 #2 Square Drive 9 x 4