Apa perbedaan antara paku keling buta kepala bulat datar dan paku keling buta countersunk?

Datarkeling buta kepala bulatcocok kanggo riveting ing workpiece karo lumahing relatif Gamelan.Sawise riveting, sirah bunder datar saka rivet bakal protrude ing lumahing workpiece.

Keling countersunkcocok kanggo riveting ing workpiece angled.Sawise riveting, bagean countersunk saka rivet wuta bakal pas karo workpiece, lan lumahing warata sawise riveting.