6.3mm x 13mm Zinc Plated Steel Push Nut Bolt Retainers (15 pcs.)
Diameter: 6.3mm Diameter 2: 13mm Thickness: 2mm Material: Steel Finish: Zinc Type: Push Nut Box of 15. Instead of threads a push nut uses flanges facing inward acting as teeth to hold it in place. It can be pushed or lightly tapped into place and requires cutting to remove.