Check the listing for details. M6x15mm Hex Socket Head Insert Nut Screw Post Sleeve Nut Black Oxide 30pcs. Condition: New. Listed at 12.97 USD. Description:1. Material: Made of iron and black oxide to form a dense and stable oxide film, smooth, hard and durable.2. Easy Installation: Hex socket head design allows repeated installation and removal with any standard screwdriver.3. Application: It is an important fastener for connecting furniture parts, widely used in furniture assembly and maintenance, such as desks, chairs, beds, sofas, bookshelf, kitchen cupboards, etc.Specification:Product Name: Insert Nut Screw PostMaterial: Carbon steelFinish: Black OxideHead Type: Hex Socket HeadFemale Thread Size: M6x15mm(D*L)Overall Height: 17.5mm / 0.69"Sleeve Diameter: 8mm / 0.31"Cap Size: 2.5 x 13mm / 0.1" x 0.51" (T*D)Hex Width(Fit for Wrench Size): 4mm / 0.16"Main Color: BlackPackage Content:30pcs x Screw Post Sleeve Nut.