which can be any number you see fit for your job

HeadLOK® offers higher design shear than 3/8" lag screws and no pre-drilling is needed

3/4-10 x 5 Socket Set Screw Cup Point Alloy

1 1/2-12 Slotted Hex Nut Zinc Plated

#23 x 6 High Speed Aircraft Bit Cobalt

1/2-13 x 2 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (50) 3/4-16 Hex Cap Screws 316 Stainless Steel which can be any number1 2 13 x 2 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (50) . 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