Confidence : Spikes thread size and length

What is the spike thread size and length for Confidence 20, 30, 50 and 60

Thread:  M10 x 1,0

Length: 

The spikes have 2 parts, Tip (spike)  and Top (screw with head).

Tip length : 46 mm (the spike)

Top length: 58 mm (head= 8 mm, the narrower part at the end of the thread that fits into the spike = 5,4 mm)

Assembled length: 98,6 mm