Tell us what you're using them for
They are being used to attach a steel liftgate system to an aluminum trailer.
I need the flush head sex bolts so they can mount the steel flange to the aluminum tube, and then install sheeting, or trim over to hide the fasteners from view. Its much more aesthetically pleasing than a bunch of bolts sticking through the side of a trailer.
I want to use grade 8 because of their hardness, and shear strength properties. Stainless might work, but its not the same as grade 8.
