1/4-28 x 3/4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (2700)

7/16-20 x 1 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (825)

5/8-11 Drop-In Anchor 303 SS (25)

#3 Heavy Duty Drill Bit - Stubby Length

5/8-11 x 6 Simpson Wedge Anchor 316 SS (20)

9/16 L9 USS Tension Flatwasher Yellow Zinc Plated Domestic USA (1000) 5/8-11 A307 Grade A Carriage Bolts Zinc Plated 1/4-28 x 3/4 Grade 89 16 L9 USS Tension Flatwasher Yellow Zinc Plated Domestic USA (1000) . L9 High Tension USS pattern flat washers 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.