Apps like Flange Bolt Size & Torque

Here are some great alternatives to Flange Bolt Size & Torque by Pipe Charts :
Pipedata-Plus
Pipedata-Plus
★4.5
Piping Toolbox: ASME, Fitting
Piping Toolbox: ASME, Fitting
★3.3
Piping Reference Pro
Piping Reference Pro
★3.7
Pipe and Fitting
Pipe and Fitting
★4.1
Pipedata
Pipedata
★4.4
Pipefitter Bolt Up Guide
Pipefitter Bolt Up Guide
★4.3
Fastener Lite
Fastener Lite
★3.8
Pipe Joint Fittings Flange
Pipe Joint Fittings Flange
★3.5
Pipefitter Tools
Pipefitter Tools
★3.8
Piping Engineering
Piping Engineering
★3.9
Piping Engineering Pro
Piping Engineering Pro
★3.8
Orifice Gas Flow
Orifice Gas Flow
★4.6
Fabricators Handbook
Fabricators Handbook
★4.3
Complete Piping Guide
Complete Piping Guide
★4.0
Pipe Fitter Calculator
Pipe Fitter Calculator
★4.6
Chord length
Chord length
★4.1