|Screw Length||1-1/4 in||Size||#8|
|Thread Pitch (mm)||0.794 mm||Threads Per Inch (TPI)||32|
|Drive Style||Phillips||Fastener Plating||Zinc|
|Fastener Type||Wood Screw||Features||No Additional Features|
|Head Style||Flat Head||Included||No Additional Items Included|
|Interior/Exterior||Interior||Materials Fastened||Metal to Wood|
|Measurement Standard||ANS||Package Quantity||100|
|Product Weight (lb.)||0.55 lb||Returnable||90-Day|
A: For the #8 screw, the pilot hole for cedar would be 5/32" if using a tapered bit or 7/64" if using a straight bit. The length of the screw would depend on your application.
A: Use #6 by 1 inch.
A: What are they being screwed into? (How thick the material)
A: Not enough info.
A: Hi Camelia - you wouldn't usually use screws to hold cedar slats to an underlaying surface. Typical fasteners are Stainless Steel Siding nails. These have a small round head and a ringed shank for extra holding power. They are made in several lengths and for 1/2 " deep cedar clapboards you would typically use 1 5/8" nails. If the slats you are writing about are strips of wood that you see in a lattice then these screws would not be good fasteners at all except to maybe attach the completed lattice to a porch. Make sure you drill pilot holes in the lattice edge or you will crack the slats. The pilot hole needs to be as large as the shank of the screw.