Dumas hardware is, generally speaking, more of a "bargain Basement" type of hardware. While it is serviceable, it's not going to hold up as well as some of the other brands. Speaking from personal experience, I had nothing but problems using the specified Dumas hardware set while building one of their hydroplane kits. I've built several hydros since and found no where near the issues using Octura, Aeromarine and Speedmaster hardware that I had using Dumas parts.