He aha nā hoʻokolohua paʻakikī no nā rivets makapō?

ʻO nā hoʻāʻo paʻakikī maʻamau e komo pū ana me: Rockwell Hardness (HR), Surface Rockwell Hardness (HR), Vickers Hardness (HV), Micro Vickers Hardness (HV), Knoop Hardness (HK), Brinell Hardness (HB), Leeb hardness (HL) (ʻano rebound), ultrasonic hardness test (UCI), Shore hardness (SHORE).

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