Product Description:Product Name: Internal and External Nut (No Slot)Material: 304 stainless steelSize: M2 M2.5 M3Specification composition: internal diameter x outer diameter x length, for example: M2xM4x5, inner thread diameter 2mm x external thread diameter 4mm x length 5mm.Note:1.Due to handbook measurement, please allow slight errors. 2.Due to variations between assorted displays, the photographs might not reflect the particular colour of the item.3.If you've got any questions about the product, please be at liberty to touch us. We will provide you with a reply as quickly as possible.4.We not just do retail, But also do wholesale,If you would like buy huge quantity,please touch us.We will calculate the details and provides you a reputable price.5. Thank you a great deal for your support. Have a pleasant shopping!