How to choose the pin length of the row of pins when inserting the row of pins into the row of females?

The choice of pin length when inserting the female row of pins is divided into two cases: A : U-type female row of plastic height 8.5mm - row of pins 6.0mm plastic height 11.0mm - row of pins 10mm plastic height 7.1mm - row of pins 6.0mm plastic height 3.4mm - row of pins 3.0mm plastic height 4.3mm - row of pins 4.0mm plastic height 2.2mm - row of pins 1.8mm plastic height 7.2mm - row of pins 4.5mm plastic height 5.0mm - row of pins 4.0mm plastic height 4.0mm - row of pins 3.5mm plastic height 4.6mm - row of pins 3.5mm plastic height 4.6mm - row of pins 1.8mm plastic height 7.2mm - Pin Length 4.5mm Plastic Height 5.0mm - Pin Length 4.0mm Plastic Height 4.0mm - Pin Length 3.5mm Plastic Height 4.6mm - Pin Length 4.0mm Plastic Height 4.5mm - Pin Length 4.0mm Plastic Height 4.5mm - Pin Length 4.0mm

B : Y-type female 8.5mm high - Pin header 6.0mm high - Pin header 8.0mm high - Pin header 4.0mm high - Pin header 2.7mm high - Pin header 6.35mm high - Pin header 4.0mm high - Pin header 4.8mm high - Pin header 4.8mm high - Pin header 7.10mm high

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