Pre-drilling is recommended near board-ends to reduce splitting

50 x 60 Flat Socket Cap Screw 12

#37 Heavy Duty Jobber Drill Bit

1/4 x 3 3/4 Slotted Hex Hi-Low Thread Concrete Screws Blue Ceramic Coated (500)

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

5/16-24 x 5 Grade 8 Hex Cap Screw Plain Domestic USA (250) 5/16-18 Grade 8 Hex Cap Screws Plain - Domestic USA Pre-drilling is recommended near board-ends5 16 24 x 5 Grade 8 Hex Cap Screw Plain Domestic USA (250). Grade 8 Hex Cap Screws are manufactured in the USA 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