Hvaða hörkupróf eru til fyrir blindhnoð?

Algengar hörkuprófanir eru: Rockwell hörku (HR), Surface Rockwell hörku (HR), Vickers hörku (HV), Micro Vickers hörku (HV), Knoop hörku (HK), Brinell hörku (HB), Leeb hörku (HL) (rebound) aðferð), ultrasonic hörkupróf (UCI), Shore hörku (SHORE).

https://www.yukerivet.com/news/pull-rivets-include-aluminum-iron-and-stainless-steel-what-are-semi-stainless-steel-blind-rivets/