Method for calculating Stud Bolt length

The Stud Bolt theoretical length can be
calculated by means of the formula..

L = 2 (s + n + h + rf) + g

Method for calculating Stud Bolt length

s = free threads (equals 1/3 time bolt diameter)
n = nut height (equals nominal bolt diameter)
h = flange (plate) thickness
rf = height of raised face
g = gasket thickness

The height of a nut for a Stud Bolt is the same as the diameter of the thread rod

Studs are measured parallel to the axis (L) from the first to the thread without the chamfers (points). S = free threads equals 1/3 time bolt dia

Measuring lengths of Stud Bolts

Hex bolts are measured from under the head to the top of de bolt

Measuring lengths of Hex bolts

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