Double Ended Threaded Bolt DIN938 DIN939

Our company produces a wide variety of bolts, mainly including carriage bolts, hex socket head cap screws, hex bolts, flange bolts, etc. The carriage bolts are available in large and small semi - round head types, which are suitable for applications such as woodworking and outdoor structures. The hex socket head cap screws are made of high - quality stainless steel, with excellent corrosion resistance, and are widely used in machinery, automotive, and furniture industries. The hex bolts, with a hexagonal head, are strong and reliable, and are commonly used in construction, heavy machinery, and automotive industries. The flange bolts have an integrated washer and head, which can provide a larger contact area and better sealing performance, and are often used in applications that require higher tightness. In addition, we also produce special - shaped bolts such as D - shaped bolts, U - bolts, and anchor bolts according to customer requirements.

Our minimum order quantity (MOQ) varies depending on the bolt type. For standard hex bolts, the MOQ is typically 1,000 pieces per size. This helps us streamline production and cover associated costs. For specialty bolts like custom - designed anchor bolts, the MOQ is around 5,000 pieces due to the complexity of manufacturing. However, we're flexible. If you're ordering a diverse range of bolts, we can negotiate a lower MOQ for each item. For new customers looking to build a long - term relationship, we'll consider reducing the MOQ on a case - by - case basis. For common aluminum bolts, we may set the MOQ as low as 800 pieces to accommodate smaller - scale projects.

Here are the key points for choosing the right bolt size. First, consider the application. For light - duty applications like furniture assembly, small - diameter bolts such as M4 or M6 are usually sufficient. In contrast, for heavy - duty machinery or structural connections, larger bolts like M12 or M16 might be required. Second, check the thickness of the materials to be joined. The bolt should be long enough to pass through all the components and allow for proper threading. As a general rule, the bolt length should be about 1.5 times the thickness of the materials. Finally, take into account the available space. If the installation space is limited, you may need to choose a shorter or thinner bolt to fit. In some cases, you might also need to consider the bolt's head type and drive style to ensure it can be properly installed and tightened.

1. Quality Management System Certification ISO 9001:2015: The company has obtained the quality management system from the International Organization for Standardization (ISO), indicating its capability to consistently provide products that meet customer and applicable statutory and regulatory requirements. IATF 1949:2016: Specifically addressing the requirements of the automotive industry, the company has received the quality management system certification from the International Automotive Task (IATF), demonstrating its professionalism and reliability in the field of automotive parts manufacturing. 2. Environmental Management System Certification ISO 140012015: The company has established an environmental management system that meets international standards, committed to reducing environmental pollution during the production process and achieving sustainable development OHSAS 18001:2007 / ISO 45001:2018: Occupational Health and Safety Management certification, ensuring a safe working environment for employees and preventing work-related accidents and diseases.