A diaphragm for a diaphragm valve , the diaphragm comprising: a structure , wherein the structure is a disc shape with a top side and a bottom side; a diaphragm stud at a center point on the top side of the structure, wherein the diaphragm stud is configured to couple with a connector of a bonnet assembly ; two first tabs , wherein the first tabs extend radially from the structure at an outer edge of the structure along a first axis of the structure and each first tab includes a first tab connector and a first tab end , each first tab end is connected to a first side of a respective first tab connector and the structure is connected to a second side of each first tab connector, each first tab connector slopes from the structure to each respective first tab end and the first tab ends extend radially from each respective first tab connector and are parallel in profile with at least a portion of the structure ; and two second tabs , wherein the second tabs extend radially from the structure along a second axis of the structure at the outer edges of the structure, the second axis being perpendicular to the first axis , each second tab includes a second tab connector and a second tab end , each second tab end is connected to a first side of a respective second tab connector and the structure is connected to a second side of each second tab connector , each second tab connector slopes from the structure to each respective second tab end and the second tab ends extend radially from each respective second tab connector and are parallel in profile with at least a portion of the structure , first tabs have a different width than the second tabs , and the first tabs and the second tabs engage with bonnet notches of the bonnet assembly to align the diaphragm to the bonnet assembly when the diaphragm is attached to the bonnet assembly. a structure , wherein the structure is a disc shape with a top side and a bottom side; a diaphragm stud at a center point on the top side of the structure, wherein the diaphragm stud is configured to couple with a connector of a bonnet assembly ; two first tabs , wherein the first tabs extend radially from the structure at an outer edge of the structure along a first axis of the structure and each first tab includes a first tab connector and a first tab end , each first tab end is connected to a first side of a respective first tab connector and the structure is connected to a second side of each first tab connector, each first tab connector slopes from the structure to each respective first tab end and the first tab ends extend radially from each respective first tab connector and are parallel in profile with at least a portion of the structure ; and two second tabs , wherein the second tabs extend radially from the structure along a second axis of the structure at the outer edges of the structure, the second axis being perpendicular to the first axis , each second tab includes a second tab connector and a second tab end , each second tab end is connected to a first side of a respective second tab connector and the structure is connected to a second side of each second tab connector , each second tab connector slopes from the structure to each respective second tab end and the second tab ends extend radially from each respective second tab connector and are parallel in profile with at least a portion of the structure , first tabs have a different width than the second tabs , and the first tabs and the second tabs engage with bonnet notches of the bonnet assembly to align the diaphragm to the bonnet assembly when the diaphragm is attached to the bonnet assembly. <EOS>