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

5/8 x 8 Titen HD Concrete Anchor Mech Galvanized (10)

8 x 3/4 Square Flat Particle Board Screw Plain & Lubed - Carton (10

9 x 2 Simpson Metal-Panel Screw - Hex Drive 316 SS - Carton (1000)

#6 x 6 High Speed Aircraft Bit Cobalt

3/4-16 x 4 1/2 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (20) 5/8-18 Hex Cap Screws 316 Stainless Steel Pre-drilling is recommended near board-ends3 4 16 x 4 1 2 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (20) . L9 High Tensile Strength Hex Cap Screws are designed for use in high stress, severe service environments. The highest mechanical strength off the shelf fastening system available, its special features control torque tension characteristics to develop high clamp loads when using properly controlled tightening methods. Brighton Best manufactures L9 bolting from AISI alloy steels. L9