Ungawahlukanisa kanjani amantongomane amancane e-countersunk rivet kusuka kumantongomane amakhulu e-countersunk rivet?

I-rivet nut ene-engeli engu-90 ° iyikhanda elikhulu elishoniwe, kanti i-rivet nut ene-engeli engu-120 ° iyikhanda elincane eliphikisayo.

Umehluko phakathi kwalokhu okubili:
1.I-angle yekhanda ihlukile.
2. Ububanzi obungaphandle bekhanda buhlukile.