These bolt properties are for J Hanger Type. The bolt is parallel to where the existing band runs, if there was not a gap.
IJUAhsPin1::Pin1Diameter
Specifies the diameter of the bolt. For J Hanger type, if Pin1Diameter £ 0, then use RodDiameter.
IJUAhsPin1::Pin1Length
Specifies the length of the bolt. For J Hanger type, if Pin1Length £ 0, then use Gap1 + 2 X Pin1Diameter.