Classes:     A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Order	Description	Count	Sample Item
QA	vertical hinges	2
QB	lateral hinges	2
QC	swivals	6
QD	two-tab hinges	6
QE	three-tab hinges	6
QF	four-tab hinges	6
QG	five-tab hinges	3