1/2 Cobalt Heavy Duty Jobber Drill Bit

#18 x 6 High Speed Aircraft Bit Cobalt

After installation

10 x 3 1/2 Simpson Bugle-Head Wood Decking Screws - 6-Lobe Drive 305 SS - 5 lbs Pack (280)

9/16 x 21 ITM SDS Max Hammer Drill Bit

7/8-9 x 6 1/2 Grade 8 Hex Cap Screw Yellow Zinc Plated 9/16-12 Hex Cap Screws 316 Stainless Steel 1/2 Cobalt Heavy Duty Jobber7 8 9 x 6 1 2 Grade 8 Hex Cap Screw Yellow Zinc Plated . Grade 8 Hex Cap Screws are manufactured from medium carbon alloy steel. In diameters 1 4 to 1 1 2 inches our Grade 8 material meets or exceeds SAE J429 Grade 8 specifications. Diameters over 1 1 2 inches meet or exceed ASTM A354 Grade BD. All material is manufactured with rolled threads. Yellow zinc plated bolting will meet or exceed ASTM F1941. Typical hardness on diameters 1 4 to 2 1 2 inches