TEL:(+86) 15306396799
About Us
As a dedicated specialist in the fastener industry, Qingdao Jinglei Machinery Co., Ltd. understands that the integrity of your project depends on the quality of every single bolt and nut. We offer a comprehensive catalog of standard and non-standard fasteners designed to withstand the most demanding industrial environments. From automotive assembly lines to massive construction projects, our products provide the structural security and durability your clients expect.
FAQs
For stock items, there is no strict MOQ. For custom production, the MOQ starts from 1,000 to 10,000 pcs depending on the specifications.
Yes, we provide free samples for standard items. You only need to cover the express shipping cost, which can be refunded after the official order.
Our fasteners fully comply with DIN, ANSI/ASME, ISO, JIS, and BS standards to ensure global compatibility.
Absolutely. Every shipment comes with an MTC and a 3.1 certificate upon request, verifying the chemical and physical properties.
We implement a 100% inspection process, including tensile strength tests, hardness tests, and salt spray tests in our in-house lab.
Materials: Stainless Steel (304, 316), Carbon Steel (8.8, 10.9, 12.9). Coatings: Zinc, Nickel, Chrome, Dacromet, and Hot-dip Galvanized.
Yes, our OEM/ODM service supports .dwg, .stp, and .pdf formats for custom dimensions and high-precision threading.
Stock orders: 3-5 days. Mass production: 15-30 days. We prioritize urgent projects for our long-term partners.
We primarily accept T/T (Telegraphic Transfer). Specific terms like 30% deposit and 70% balance against B/L copy are common for new clients.
Yes, we welcome inspections from world-renowned agencies such as SGS, TUV, or Intertek at the customer’s request.