Material: 304 stainless steel (A2-70) and no exterior finish, greater strength and corrosion resistance performance than regular stainless steel or zinc plated fasteners.
Widely used in stairs, rails, expansion screws decoration, mechanical equipment, electronic equipment, communication equipments and etc. Play a good role in decoration and prevent the thread being scraped.
The domed top help cover and protect the threads. The exposed threads shouldn't be longer than the inner height of the cap nut.