Product Name: Black GB6178 Hex Slotted and Castle Nuts Model NO.: GB6178 DIN935 Grade: 4/8 Standard: DIN, GB Head Style: Hexagonal Connection: Common Bolt Type: Hexagon Head Material: Carbon Steel Trademark: Kunshan Grace Transport Package: Carton Package Specification: 27*25*17 Origin: Kunshan, China HS Code: 7318160000 Product Description Product descriptionProduct NameBlack GB6178 hex slotted and castle nutsMaterialSteelGrade4/8PackingCarton packagePortShanghai or NingboDelivery time30DaysPay termTT30%/TT100%Our CompanyThe company is located in Kunshan, Suzhou.Our company has been in the fastener industry for 10 years.The company's main products are bolts, nuts , screws and washers, we also can provide pins and keys and other customized products, stainless steel and carbon steel products are the most common material, as for the products we can do different surface treatment, for example hot galvanized, blue white zinc plated, yellow zinc plated, black zinc plated,etc. If you need the customized products, please provide us the drawing, then we will according to your drawing provide the products for you. Usually we pack the goods with carton box and pallet, we also can provide the CE certification. We support express delivery, by air and sea.Packing/DeliveryCertification