Import Custom Black Hexagon Lock Nuts — Buy in wholesale FOB from Supplier in China
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Custom Black Hexagon Lock Nuts
Custom Black Hexagon Lock Nuts from Wenzhou Yuanzhi Auto Parts Co. Ltd are precision-engineered fasteners designed for high-vibration applications in automotive, machinery, and industrial equipment. The nuts are manufactured from C70, 65Mn, carbon steel, alloy steel, stainless steel, or brass, with sizes ranging from M3 to M48 and imperial equivalents up to 3/4 inch. Surface finishes include black oxide, zinc plating in clear, blue, yellow, or black, nickel plating, and hot-dip galvanizing, selected based on corrosion resistance and aesthetic requirements.
These nuts comply with international standards including GB, DIN, ISO, ANSI/ASTM, B7, BS, BSW, and JIS, ensuring interchangeability across global supply chains. Heat treatment processes such as tempering, carburizing, and quenching are applied to achieve specific hardness levels, typically between 30-40 HRC for carbon and alloy steel variants. The black oxide finish provides mild corrosion resistance and a matte appearance preferred in mechanical assemblies where visual uniformity matters. Standard tolerances follow ISO 2768-mC for general purposes unless otherwise specified by the customer.
Buyers in automotive assembly, heavy machinery, and aerospace maintenance use these nuts for secure fastening under dynamic loads. The supplier accepts small orders and supports OEM and ODM requests, making them suitable for prototyping and niche production runs. Packaging is available in 100 to 1000 pieces per bag with labels, packed in export-standard cartons. Loading occurs from Ningbo or Shanghai ports, with payment terms of 30% advance and 70% before shipment. Delivery is supported by strong production capacity and stock availability.
| Material | C70, 65Mn, carbon steel, alloy steel, stainless steel, brass (as per OEM requirement) |
| Grade | 4, 8, 10, AISI 2, AISI 5, AISI 8 (as per OEM requirement) |
| Finish | Black oxide, plain, zinc plated (clear/blue/yellow/black), nickel plated, passivated, polished, chrome, hot-dip galvanized |
| Size Range | M3 to M48, #12 to 3/4 inch (custom sizes available) |
| Thread Standard | GB, DIN, ISO, ANSI/ASTM, B7, BS, BSW, JIS |
| Heat Treatment | Tempering, carburizing, spheroidizing, annealing, quenching (applied to meet mechanical property requirements) |
| Typical Hardness Range | 30-40 HRC for carbon and alloy steel variants (standard for high-strength lock nuts) |
| Typical Tolerance | ISO 2768-mC for general dimensions (unless specified otherwise by customer) |
| Typical Packaging | 100 to 1000 pieces per polybag with label, export cartons (standard for industrial fasteners) |
| Test Equipment | Caliper, tensile test machine, hardness tester, salt spray tester, H.D.G thickness tester, 3D detector, projector, magnetic flaw detector |
Wenzhou Yuanzhi Auto Parts Co. Ltd operates from Wenzhou Economic and Technological Development Zone in Zhejiang Province, China. The company specializes in manufacturing flange lock nuts and related fasteners, with documented production capabilities and testing infrastructure including hardness testers, salt spray chambers, and 3D measurement systems. The listing confirms sample availability and OEM/ODM support but provides no details on workforce size, annual output, or client list.
The supplier holds ISO 9001:2015, IATF 16949:2016, and ISO 14001:2015 certifications, indicating a documented quality and environmental management system. Response rate and average response time are not available on the listing, and no third-party verification badges are displayed. The address is precise and matches public industrial zone records, supporting legitimacy. No claims are made about export volume, years in operation, or production capacity beyond general statements of stock availability.
| Business Type | Supplier |
| Year Established | Recently Joined |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| Response Time | <4h |
| Response Rate | New Supplier |
Sourcing Custom Black Hexagon Lock Nuts from Wenzhou Yuanzhi Auto Parts Co. Ltd - China Import Guide
Before placing an order, verify the material grade and heat treatment specification with the supplier using a material test report. Confirm the exact finish type, especially for zinc plating, as clear, blue, yellow, or black chromate affects both appearance and corrosion performance. Request a sample for fit and function testing, particularly if the nuts will be used with non-standard bolts or in assemblies with tight tolerances.
Confirm Incoterms with the supplier: the listing mentions Ningbo or Shanghai as loading ports, but does not specify whether FOB, CIF, or EXW applies. Payment terms are 30% advance and 70% before shipment, but buyers should negotiate letter of credit terms for large orders. Lead time is stated as 'timely delivery' due to stock availability, but ask for a written production schedule and minimum lead time for custom sizes.
Perform quality checks on incoming shipments: inspect for surface defects, thread integrity, and finish uniformity. Request a certificate of conformity for each batch, including test results for hardness, coating thickness, and salt spray resistance. Retain a sample from each shipment for traceability. Ensure carton labels match the order specification and include batch number, material, and finish details.
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29 listingsTop Verified Suppliers for Custom Black Hexagon Lock Nuts
30 suppliersBuy Custom Black Hexagon Lock in Bulk — Verified Supplier in China
When sourcing Custom Black Hexagon Lock Nuts for your business, securing the right balance of quality and cost is essential. Wenzhou Yuanzhi Auto Parts Co. Ltd, a verified supplier based in China, offers this product for international export. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $1/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is a staple in the Nuts sector with strong demand from importing countries worldwide.
Custom Black Hexagon Lock Specifications, Trade Terms & Pricing
Importing Custom Black Hexagon Lock requires careful attention to shipping logistics, customs compliance, and secure payment terms. Wenzhou Yuanzhi Auto Parts Co. Ltd offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Common payment methods for international B2B transactions include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P). All transactions and RFQs are facilitated through EximNext, a leading import export marketplace designed to make cross-border trade secure and efficient.
About Wenzhou Yuanzhi Auto Parts Co. Ltd — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this Custom Black Hexagon Lock has been verified on our platform. Whether you are a distributor, wholesaler, or procurement manager, you can request a free quotation, ask for product samples, and finalize your bulk purchase with confidence. EximNext hosts thousands of verified manufacturers and exporters across 200+ countries. Explore similar products in the Nuts category and connect with top-tier exporters on our comprehensive online B2B marketplace. Start your sourcing journey today.
Import Custom Black Hexagon Lock — Shipping, Logistics & Customs
Importing Custom Black Hexagon Lock requires careful attention to shipping logistics, customs compliance, and secure payment terms. Common shipping options include Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Buyers should verify import duties in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).
Frequently Asked Questions About Custom Black Hexagon Lock
What is the wholesale price of Custom Black Hexagon Lock Nuts?
The current listed wholesale price for Custom Black Hexagon Lock Nuts from Wenzhou Yuanzhi Auto Parts Co. Ltd is $1/Bags on FOB terms from China. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Wenzhou Yuanzhi Auto Parts Co. Ltd through EximNext.
What is the Minimum Order Quantity (MOQ) for Custom Black Hexagon Lock?
The supplier, Wenzhou Yuanzhi Auto Parts Co. Ltd, has set a Minimum Order Quantity (MOQ) of 1 Bags for Custom Black Hexagon Lock. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Custom Black Hexagon Lock Nuts?
The HS Code classification for Custom Black Hexagon Lock Nuts depends on the specific grade and form. Contact Wenzhou Yuanzhi Auto Parts Co. Ltd through EximNext for the exact HS Code and customs documentation required for your destination country.
How can I import Custom Black Hexagon Lock from China?
To import Custom Black Hexagon Lock from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Wenzhou Yuanzhi Auto Parts Co. Ltd. Ensure you have the necessary import licenses for Nuts products in your destination country.
Is Wenzhou Yuanzhi Auto Parts Co. Ltd a verified supplier?
Yes, Wenzhou Yuanzhi Auto Parts Co. Ltd is a verified supplier on EximNext. You can view their complete company profile, business registration details, certifications, and export history before placing a bulk order.
What are the key specifications of Custom Black Hexagon Lock Nuts?
For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to Wenzhou Yuanzhi Auto Parts Co. Ltd through EximNext.
What packaging options are available for bulk orders of Custom Black Hexagon Lock?
Wenzhou Yuanzhi Auto Parts Co. Ltd offers Custom Black Hexagon Lock with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Custom Black Hexagon Lock the most?
Custom Black Hexagon Lock is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Wenzhou Yuanzhi Auto Parts Co. Ltd through our platform.
What certifications does this Custom Black Hexagon Lock supplier hold?
Wenzhou Yuanzhi Auto Parts Co. Ltd maintains international quality certifications. These ensure that the Custom Black Hexagon Lock meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Custom Black Hexagon Lock Nuts on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Wenzhou Yuanzhi Auto Parts Co. Ltd will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
What payment methods are accepted?
Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services. Confirm accepted terms directly with Wenzhou Yuanzhi Auto Parts Co. Ltd.
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