Uyini umehluko phakathi kwama-rivets e-head blind acishiwe kanye nama-rivets e-round head blind?

Ama-rivets e-round head blind awadingi ukushintshwa, azophuma ebusweni ngemva kokushintshwa, kuyilapho ama-rivets e-countersunk head blind kufanele ashintshwa ngo-120°, futhi azoba sendaweni efanayo nepuleti ngemva kokushintshwa.