Bolting two structural steel shapes together Step 1:

Seismic Restraints for Mechanical Equipment Bolting two structural steel shapes together Step 1:

Step 1: Preparation

Determine the bolt size and material requirements from construction drawings or the manufacturer’s instructions.

**Figure 147:** *Bolting structural shapes.*

Step 2: Locate holes

Carefully drill new holes in the structural steel shapes.

Step 3: Install bolts, washers, and nuts

Apply washers and nuts, then tighten.

Tighten the anchor bolt to the correct torque setting shown in the manufacturer’s instructions or the construction drawings. Use a calibrated torque wrench or turn-of nut method.

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