Mokhoa oa ho khetholla linate tse nyane tsa rivet ho tsoa ho linate tse kholo tsa countersunk rivet?

The rivet linate le angle 90 ° ke e khōlō countersunk hlooho, ha rivet linate le angle 120 ° ke e nyenyane countersunk hlooho.

Phapang pakeng tsa tse peli:
1.The angle ea hlooho e fapane.
2. Bophara bo ka ntle ba hlooho bo fapane.