A: Our production follows all major global standards, including DIN, ANSI/ASME, ISO, JIS, and BS. We ensure your fasteners are interchangeable and compatible with your existing assemblies.
A: We work with high-tensile carbon steels (Class 8.8, 10.9, 12.9) and various stainless steel grades (304, 316, 316L, 410). We also process specialty alloys upon request for high-corrosion or high-temperature environments.
A: We offer a wide range of coatings: Zinc plating (Clear/Yellow/Black), Hot-Dip Galvanizing (HDG), Geomet, Dacromet, Nickel, and Passivation. We can achieve salt spray resistance from 24h up to 2,000+ hours.
A: We source exclusively from Tier-1 steel mills (such as Baosteel). Every coil of wire undergoes spectroscopic analysis upon arrival to verify chemical composition before it enters our production line.
A: Yes. Our facility includes a fully equipped lab for tensile strength testing, hardness testing (Rockwell/Vickers), salt spray testing, and torque analysis to ensure all mechanical properties meet your specs.
A: Our IATF-compliant system manages all revisions. Any change to your drawings triggers a formal Process Change Request (PCR), ensuring all departments—from tooling to QC—are updated and validated before production resumes.
A: We stand by our products 100%. In the rare event of a discrepancy, we initiate the 8D problem-solving process within 24 hours. We offer a full replacement, credit, or refund for any verified manufacturing defects.
A: For long-term contract partners, we offer VMI and JIT scheduling. We can maintain a safety stock of your specific parts in our warehouse to ensure your assembly lines never experience downtime.
A: We accept T/T (Telegraphic Transfer), L/C (Letter of Credit), and Trade Assurance. For established partners with a strong credit history, we can negotiate Net 30 or OA (Open Account) terms.
A: Our standard export packaging is 25kg cartons on fumigated pallets. We also offer custom retail packaging, private labeling, and KLT box options to integrate directly into your production or retail system.
A: While we are a manufacturer, we have a deep network of audited partners. We can consolidate related hardware (washers, nuts, or stamping parts) into a single shipment to save you time and logistics costs.
A: We offer price-locking contracts for 3–6 months for our regular clients. By pre-purchasing raw materials, we help you hedge against market volatility and maintain stable procurement costs.























We’re here for your well-being, always
No. 288 Caixiang Road, Renhe Industrial Park, Bacheng Town, Kunshan City, Suzhou City, Jiangsu Province, China
zsdscrew@gmail.com
zsdscrew.uk@gmail.com
zsdscrew@outlook.com
Phone :
+86 137 7630 6699
WeChat:
+86 186 6225 6861
WhatsApp:
+86 137 7630 6699
Considering time zone differences, we will reply to you as soon as possible within 24 hours. Thank you sincerely.









A: We are a certified source factory located in SuZhou, China, with 16+years of expertise. Unlike trading companies, we operate our own cold-heading and thread-rolling lines, offering you factory-direct pricing, total quality control, and transparent production timelines.
A: It represents the highest quality standard in the automotive industry. For you, this means Automotive-Grade precision, 100% batch traceability, and a "Zero Defect" management philosophy applied to every fastener we produce, regardless of your industry.
A: Absolutely. Customization is our core strength. Our engineering team works with CAD, SolidWorks, and 3D Step files. From specialized head types to complex multi-station parts, we provide a one-stop solution from rapid prototyping to mass production.
A: Beyond our IATF protocols, we utilize high-speed automated optical sorting machines. These systems inspect 100% of the batch for dimensional accuracy, thread integrity, and surface defects, ensuring we meet your strict PPM (Parts Per Million) requirements.
A: Yes. As an IATF-certified partner, we provide full PPAP Level 3 packages, including Control Plans, PFMEA, and ISIR. Every shipment is accompanied by a 3.1 or 3.2 Material Test Report to verify chemical and mechanical compliance.
A: For standard stock items, there is no MOQ—you can order by the box. For custom parts, the MOQ depends on the specifications. We offer free samples for quality evaluation (customer covers shipping), which can be fully refunded upon mass production orders.
A: Stock items are shipped within 24-72 hours. Standard production typically takes 20-30 days, while complex custom projects (including tooling) take 35-45 days. We provide a firm delivery commitment with every quotation.
A: Yes. We offer DDP services globally (USA, Europe, Southeast Asia, etc.). We handle all freight, customs clearance, and import duties, delivering the goods directly to your door so you can focus on your business without logistics headaches.