Lookup flange, pipe, and bolt data in seconds with Flange Bolt Chart. All data is available offline, lookups are instantaneous. Here's just a sample of the available data. Flange bolting data: 1. Number of bolts 2. Diameter of bolts 3. Length of bolts 4. Wrench size 5. Torque pattern 6. Target torque Flange dimensions data: 1. Outside diameter of flange 2. Flange thickness 3. Diameter of bolt circle 4. Flange weight Pipe data: 1. Outside diameter 2. Wall thickness 3. Schedule 4. Weight 5.