Chinese Manufacturer High Quality Carbon Steel Black Oxide DIN933 DIN931 Hex Bolt

Chinese Manufacturer High Quality Carbon Steel Black Oxide DIN933 DIN931 Hex BoltProduct Description  ItemChinese Manufacturer High Quality Carbon Steel Black Oxide DIN933 DIN931 Hex BoltHead TypeHexagon HeadDrive StyleFlatMaterialCarbon SteelFinishWhite Zinc-PlatedAvailable Raw MaterialCarbon steelAlloy steelStainless steelBrass, Bronze, AluminumStandardDIN,ANSI,ASTM,JIS,GB,ISO,NON-STANDARDGrade3.6/4.8/5.6 /6.8/8.8/9.8/10.9/12.9Surface finishingPlainGalvanized (various of color) ,Zinc-Plated (various of color)Nickel- Plated, Chrome-Plated, Oxide BlackPassivation, Dacromet,NylokPrecote,Baking Paint/Stoving Varnish,Electrophoresis BlackHeat TreatmentCarburization or tempering or high-frequency quenchingPackingPlastic Bag/Boxes /Cartons/Pallets/Customize, or customer requestDetailed Photos Company ProfileDongguan Lihao Hardware Technology Co., Ltd. is a professional manufacturer of copper, aluminum, iron, stainless steel and other standard and non-standard screws.The factory is well equipped, strong technical force. The company specially hired professional and technical personnel to engage in development, design, production, sales and a series of work; The company now has Japan, Taiwan excellent set of excellent equipment; Have a group of experienced technical and quality control personnel; We have a business team with rich customer service experience."Excellent quality, good service system" is the guarantee of success, is the real commitment and return to customers! We take "quality, service, innovation, development" as the eternal theme of the business philosophy, and the company will continue to improve the production process, improve the service system, in accordance with the industry quality standards, welcome to call the consultation.  Our workshopOur services Cooperative brand Packaging & ShippingFAQ1.Are you trading company or manufacturer?We are factory with 20+ years experience in fastener making in China. 2.Do you provide samples? Is it free or fee charge?Free samples will be ready within 3 days if available in stock or if tooling is available, but we do not pay for shipping.If we don't have any in stock, we need to re-customize the sample and charge the sample fee.3. What is your delivery time?It depends on if we have stock or not, if we have stock goods, we can delivery within 3-5 days after receive the payment. And normally our production is in 20-30 days for products. 4.Can you give me help if my products are very urgent?Yes, we will try our best give you help. Because we have our own factory to produce. We can flexible to adjust our production schedule. 5.I want to keep our design in secret, can we sign NDA?Sure, we will not display any customers' design or show to other people, we can sign NDA. 6.Can we know the production process without visiting the factory?We will offer detailed production schedule and send pictures and videos which show the machining progress./* March 10, 2023 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1