An assortment of non-handed corner keys from Hillman. Corner keys are designed to hold corners square and in place on screen window assemblies. Parts are made of high-strength nylon. Parts come in widths of 1/5" & 3/10". Full assortments of #58640 contain nine (9) refill items comprised of Hillman item numbers #404060 - #404062, #404065, #404067 - #404069, and #404071 - #404072.