T is the flange thickness and h is the raised-face height on that flange. Enter 0 for a flat face. A blank second flange uses the first flange. Projection is the extra length past the two nuts, both ends together. The standard length rounds L up to the next 5 mm, or the next 1/4 in. A length already on that step stays as it is.
The tightening order is a star, or cross, for 4 to 48 bolts. Bolt 1 is opposite bolt 1 plus half the count. The next bolts split the largest remaining gap. The drawing joins the first four.
Check this tool
Stud Bolt Length version 1.0.0
This records your check of the tool output. It does not change the tool or the engineering data.
