Thank you for viewing. These are Ebi Nuts that have been stored in a factory for a long time. They are unused. I believe some have been used. I haven't counted them, so I'm offering them at a bargain price. These are, at most, used but unused items. Please do not purchase if you are looking for something in new condition. No returns. Shipping will be done by taking the nuts out of the original box and putting them in a bag. Thank you for your consideration. Product Information Product Name: Ebi Nut NSK-5M (Steel) Manufacturer: Lobtex Co., Ltd. Application: Allows for easy installation of nuts from one side on thin plates, pipes where tapping is difficult, and plastic plates where welding is not possible. Suitable for attaching parts to steel and resin parts of automobiles, and aluminum building materials for exteriors. Material: Steel. Quantity: 1 box, not counted. Specifications: Suitable screw: M5 x 0.8. Suitable plate thickness for crimping: 0.5 - 3.2mm (thin head). Total length: Approximately 13mm. Hole diameter: 7.1mm. I strive to provide smooth transactions. Please feel free to ask any questions in the comments.