Oil & Gas > Piping

Bolt Length Calculator Free

Free access includes 10 calculations, saved history, and the same engineering core.

Free Active10 free calculation(s) left

StandardPressure classNPSAssembly typeGasket thickness (mm)Washer countThread projection countNut countExtra allowance (mm)Other component thickness (mm)Spectacle thickness (mm)Project name

Select a standard and open a calculation.

Result

Run a calculation

Choose your inputs and calculate.

Bolt quantity-

Bolt diameter-

FormulaL = stack + gasket + washer + nut + projection + facing + allowance

My Calculations

Every login shows your saved calculation history

No saved calculations yet.