this heavy hex nut is great for heavy-duty engineering and construction projects

3/4-16 x 3 1/4 Hex Cap Screw SS 316 (A4)

1 1/8-12 x 8 Socket Cap Screw Alloy

11/64 Cobalt Heavy Duty Jobber Drill Bit

3/4-10 x 4 3/4 Simpson Wedge Anchor 304 SS (10)

1/2-20 x 6 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (25) Drop-In Anchor Setting Tools this heavy hex nut is1 2 20 x 6 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (25) . 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