1 x 17 ITM SDS Max X-Cutter Hammer Drill Bit

1 5/8-8 A194 2H Heavy Hex Nut Plain

3/4-10 x 3 1/2 Hex Tap Bolt 18-8 (A2) Stainless Steel

#1 Square Drive - All #7 diameters and 9 x 3 1/2 #2 Square Drive - 9 x 4

The slots are for the insertion of a cotter pin to secure the nut when used with a drilled shank fastener

3/4-16 x 9 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (40) 7/16-14 Hex Cap Screws 316 Stainless Steel 1 x 17 ITM SDS3 4 16 x 9 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (40) . 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