Start with 8 single strands (z-twist). Ply four sets of two strands together in the s-twist direction with high twist. Ply two sets of 2xtwo-ply together in the z direction with high twist. Ply the two resulting yarns together in the s direction. https://spinoffmagazine.com/kate-larsons-tips-spin-cabled-yarn/
Wear protective gloves, the thread is abrasive and can irritate the skin when using repetative motion.