5/8-11 x 3 1/2 Simpson Wedge Anchor 316 SS (25)

3/4-16 x 4 1/2 Hex Cap Screw SS 18-8 (A2)

5/16 x 4 Powers Round Toggle Bolt Zinc Plated (25)

5/8-18 x 6 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (25)

1 1/4 L9 SAE Tension Flatwasher Yellow Zinc Plated Domestic USA (12) 3/4-16 Socket Cap Screws Alloy 5/8-11 x 3 1/2 Simpson1 1 4 L9 SAE Tension Flatwasher Yellow Zinc Plated Domestic USA (12) . L9 High Tension SAE 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.