Uyini umehluko phakathi kwamantongomane amancane e-countersunk head rivet namantongomane amakhulu e-countersunk head rivet？

Ikhanda elincane elingaphansi kwe-countersunk lifanelekela izinto eziqinile neziqinile.

Ikhanda elikhulu elifakwe ephepheni lifanelekela izinto ezincane nezithambile.