#3 square drive

5/8 x 21 ITM SDS Max X-Cutter Hammer Drill Bit

8 x 2 1/4 Phillips Flat w/ Nibs Self Drilling Cement Board Screws w/ Wings Ruspert Coated - Carton (3000)

5/8-11 x 8 Grade 5 Hex Cap Screw Zinc Plated

3/4-10 x 2 3/4 Hex Cap Screw SS 316 (A4)

13/16 x 18 Ship Auger Wood Bit Square Trim-Head Self Drilling Siding Screws 410 Stainless Steel #3 square drive13 16 x 18 Ship Auger Wood Bit . Ship Auger Wood Drill Bits are heat treated with machine ground hollows. Feature a single twist with a single cutter and side lip. Made of premium steel, imported from France, Ship Auger Wood Drill Bits are ideal for boring CCA and creosoted poles, railroad ties, bulkheads and other heavy timber.