ZUMA BOTTOM PATCH A bottom patch is a type of patch fitting that is used to connect a glass door to a floor spring. It is also known as a bottom patch or a floor hinge patch. -SS matt, Rose Gold, Gold, Black matt finish available -SS-304 cover, SS pivot support, aluminum body -SS-304 soild bottom fixing part Specification : 1) 1 mm Thick SS-304 Cover Plate, 2) 8 mm Thick Aluminum Inner Gasket.