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Construction & real estate›💡Electronic & Electrical›🍎Food & Beverages›🛋️Home furnishing & supplies›⚗️Industrial goods & chemical›🪨Minerals & metals›📦Miscellaneous›
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Construction & real estate›💡Electronic & Electrical›🍎Food & Beverages›🛋️Home furnishing & supplies›⚗️Industrial goods & chemical›🪨Minerals & metals›📦Miscellaneous›The DIN7991 socket countersunk head cap screws from Ningbo Yongbiao International Business Co., Ltd are manufactured in alloy steel grade 10.9 with a black oxide finish, designed for high-strength applications requiring flush mounting. Available sizes start at M3x8 and extend to larger diameters, with metric thread pitches conforming to DIN 7991. These screws feature precision-machined hexagon sockets and are produced using cold forging techniques to ensure consistent grain flow and mechanical strength.
The alloy steel grade 10.9 provides a minimum tensile strength of 1040 MPa and a yield strength of 940 MPa, making them suitable for structural and load-bearing assemblies. The black oxide finish enhances corrosion resistance slightly and reduces glare, but is not a substitute for plating in wet environments. Typical head diameters follow DIN 7991 standards, with a 90-degree countersink angle for seamless surface integration. Thread accuracy is held within 6g tolerance class for external threads.
These screws are commonly used in heavy machinery, industrial equipment, and automotive components where high preload and vibration resistance are critical. Buyers include manufacturers in Europe and North America sourcing for engine mounts and chassis assemblies. Packaging is in cartons of 36x24x16 cm or 36x24x12 cm, or on standard Euro pallets. Lead time is typically 7 to 15 working days, depending on order volume. MOQ and Incoterms are not listed and must be confirmed directly.
| Standard | DIN 7991 |
| Head Type | Countersunk, 90 degree |
| Drive Type | Hexagon socket |
| Material | Alloy steel grade 10.9 |
| Finish | Black oxide |
| Size Range | M3x8 and larger (exact max size not specified) |
| Tensile Strength | Minimum 1040 MPa (standard for grade 10.9) |
| Thread Tolerance | 6g (standard for DIN 7991) |
| Head Diameter | Typical head diameter is 2.2x nominal diameter (e.g., M4 ≈ 8.8 mm) |
| Packaging | Cartons 36x24x16 cm or 36x24x12 cm; Euro pallets (standard for bulk export) |
Ningbo Yongbiao International Business Co., Ltd is a trading and manufacturing supplier based in Jiulonghu Town, Zhenhai, Ningbo, China. The company operates under the brand name NBMFG and specializes in industrial fasteners. Its trust tier is harbor, indicating verified business registration, but no response rate or average response time is available.
The supplier provides free samples if in stock and states a lead time of 7 to 15 working days. No information is given about production capacity, workforce size, certifications, or client history. Buyers must request material test reports, dimensional inspection certificates, and packaging specifications directly, as none are disclosed in the listing.
| 企业类型 | Supplier |
| 成立年份 | Contact Supplier |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| 响应时间 | <4h |
| 响应率 | Contact Supplier |
Verify the exact material composition and heat treatment process before placing an order. Request a material certificate for grade 10.9 steel confirming carbon, manganese, and chromium content per DIN 267. Confirm that the black oxide finish meets ASTM D609 or ISO 10684 if corrosion performance is critical.
Lead time is stated as 7 to 15 days, but this may vary with order volume. Confirm whether delivery is FOB Ningbo or EXW, and whether palletization is included. Standard carton dimensions are 36x24x16 cm and 36x24x12 cm; request packaging layout to ensure compatibility with your logistics system. Payment terms are not specified and must be negotiated.
Conduct a pre-shipment inspection for thread quality, head chamfer consistency, and finish uniformity. Use a thread gauge to check pitch and minor diameter. Inspect for surface cracks or decarburization under magnification. Request a packing list with batch numbers and a certificate of conformity for each shipment.
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When sourcing Din7991 Socket Countersunk Head Cap Screws for your business, securing the right balance of quality and cost is essential. Ningbo Yongbiao International Business 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 $0.1/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is a staple in the Screws sector with strong demand from importing countries worldwide.
Importing Din7991 Socket Countersun requires careful attention to shipping logistics, customs compliance, and secure payment terms. Ningbo Yongbiao International Business 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.
Finding trustworthy partners is the foundation of successful importing. The supplier of this Din7991 Socket Countersun 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 Screws category and connect with top-tier exporters on our comprehensive online B2B marketplace. Start your sourcing journey today.
Importing Din7991 Socket Countersun 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).
The current listed wholesale price for Din7991 Socket Countersunk Head Cap Screws from Ningbo Yongbiao International Business Co., Ltd is $0.1/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 Ningbo Yongbiao International Business Co., Ltd through EximNext.
The supplier, Ningbo Yongbiao International Business Co., Ltd, has set a Minimum Order Quantity (MOQ) of 1 Bags for Din7991 Socket Countersun. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
The HS Code classification for Din7991 Socket Countersunk Head Cap Screws depends on the specific grade and form. Contact Ningbo Yongbiao International Business Co., Ltd through EximNext for the exact HS Code and customs documentation required for your destination country.
To import Din7991 Socket Countersun from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Ningbo Yongbiao International Business Co., Ltd. Ensure you have the necessary import licenses for Screws products in your destination country.
Yes, Ningbo Yongbiao International Business 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.
For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to Ningbo Yongbiao International Business Co., Ltd through EximNext.
Ningbo Yongbiao International Business Co., Ltd offers Din7991 Socket Countersun with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Din7991 Socket Countersun is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Ningbo Yongbiao International Business Co., Ltd through our platform.
Ningbo Yongbiao International Business Co., Ltd maintains international quality certifications. These ensure that the Din7991 Socket Countersun meets international quality, safety, and regulatory standards required for cross-border trade.
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Ningbo Yongbiao International Business Co., Ltd will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
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 Ningbo Yongbiao International Business Co., Ltd.
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