Category 1 anchor classification: The Strong-Bolt 2 anchor received classification as a Category 1 anchor

5/8-11 x 7 Flat Socket Cap Screw Alloy

2-4 1/2 x 16 Socket Cap Screw Alloy

1/4-28 x 1/2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (3300)

1 1/2 L9 SAE Tension Flatwasher Yellow Zinc Plated Domestic USA (10) 1 1/4-7 Flat Socket Cap Screws Alloy Category 1 anchor classification: The1 1 2 L9 SAE Tension Flatwasher Yellow Zinc Plated Domestic USA (10) . 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.