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Flange Bolts
These flange bolts feature an integrated flange beneath the hex head, eliminating the need for separate washers by distributing clamping force over a larger surface area. They are manufactured in Carbon Steel Grade 8.8 or 10.9, and Stainless Steel 304 or 316, with thread sizes from M6 to M36 and lengths from 15mm to 300mm. The flange diameter is typically 1.5 to 2 times the nominal thread size, with thicknesses ranging from 1.2mm to 5mm depending on load class.
Grade 8.8 bolts are hardened and tempered for general structural use, achieving a minimum tensile strength of 800 MPa, while Grade 10.9 bolts meet 1,040 MPa for high-stress applications. Stainless steel variants offer corrosion resistance, with 304 suitable for mild environments and 316 for saline or chemical exposure. These bolts conform to ASTM A325 or DIN 6921 standards where specified, with thread pitch following ISO 262. Surface finish is typically plain, zinc-plated, or passivated, depending on material.
They are commonly used in steel frame construction, bridge assembly, pressure vessel flanges, and heavy machinery mounting. Buyers include engineering contractors, OEMs in mining and energy, and infrastructure project suppliers. Orders are typically placed in lots of 500 to 5,000 pieces, packaged in bulk cartons or wooden crates. Lead time is 20 to 40 days. Incoterms are usually FOB Qingdao or CIF, with payment via T/T or L/C. No certifications are listed; buyers must request mill test reports for material traceability.
| Material | Carbon Steel Grade 8.8 / 10.9 or Stainless Steel 304 / 316 |
| Thread Size | M6 to M36 (standard metric series) |
| Length Range | 15mm to 300mm (standard lengths) |
| Flange Diameter | 1.5 to 2 times nominal thread size (typical for load distribution) |
| Flange Thickness | 1.2mm to 5mm (varies with size and grade) |
| Tensile Strength (Grade 8.8) | Minimum 800 MPa (standard per ISO 898-1) |
| Tensile Strength (Grade 10.9) | Minimum 1,040 MPa (standard per ISO 898-1) |
| Yield Strength (Grade 10.9) | Minimum 940 MPa (standard per ISO 898-1) |
| Thread Standard | ISO 262 (metric coarse pitch), optional fine pitch on request |
| Surface Finish | Plain, zinc-plated (typical for carbon steel), or passivated (for stainless) |
Hebei Bentley Technology Co.,ltd is based in Hengshui City, Hebei Province, China, with a manufacturing focus on fasteners including flange bolts. The supplier’s profile indicates no verified certifications, no public company history, and no listed workforce or production capacity. Response metrics show no recorded communication, suggesting limited buyer engagement or inactive sales operations.
The listing confirms material grades and basic design function but provides no details on heat treatment processes, testing equipment, or quality control systems. No claims are made regarding compliance with ASTM, DIN, or ISO standards beyond reference to equivalent specifications. Buyers should treat this as a basic manufacturer without verified quality systems and must request documentation for material compliance and mechanical testing before bulk orders.
Flange bolts feature an integrated wide flange beneath the hex head that acts as a built-in washer, distributing clamping pressure to prevent damage to mating surfaces and eliminating the need for separate washers. Commonly manufactured in carbon steel Grade 8.8 or 10.9 for structural and machinery applications, and in stainless steel 304 for corrosion-resistant requirements, these bolts are widely used in steel construction, bridge assembly, pressure vessel installation, and heavy equipment mounting. International shipments typically specify ASTM A325 or equivalent standards with mill test certificates for quality assurance.
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Sourcing Flange Bolts from Hebei Bentley Technology Co.,ltd - China Import Guide
Before ordering, confirm the exact material grade (8.8 vs 10.9, 304 vs 316) and request a mill test certificate for each batch. Verify flange dimensions and thread pitch against your drawings. Do not assume compliance with ASTM A325 unless a certified test report is provided. Surface finish should be specified as plain, zinc-plated, or passivated, as this affects corrosion performance and assembly torque.
Logistics are typically handled via FOB Qingdao Port, with lead times of 20 to 40 days after deposit. Payment is commonly 30% advance and 70% against copy of bill of lading. Incoterms must be clearly defined; CIF may be offered but requires confirmation of destination port charges and insurance coverage. Packaging is usually in bulk cartons or wooden crates, with moisture protection. Confirm packaging method to prevent rust during sea transit.
For quality control, inspect at least 5% of the batch for thread damage, flange warping, and surface defects. Use a thread gauge to verify pitch and diameter. For carbon steel bolts, check for proper hardness using a portable tester. For stainless bolts, confirm non-magnetic response if 316 is specified. Request documentation including packaging list, material certificate, and inspection report before final payment.
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30 suppliersBuy Flange Bolts in Bulk — Supplier in China
When sourcing Flange Bolts for your business, securing the right balance of quality and cost is essential. Hebei Bentley Technology Co.,ltd, a supplier based in China, offers this product with key specifications including Carbon Steel Grade 8.8 or 10.9; Stainless Steel 304/316, Full thread or partial thread, metric or imperial sizes (M10-M36 or 3/8"-1-1/2"), and Corresponds to bolt size per DIN 6921 / ISO 4162 standards, approximately 1.5x-2x bolt shank diameter. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $0.15/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is actively traded under HS Code 7318.15, making it a staple in the Flanges sector with strong demand from importing countries worldwide.
Flange Bolts Specifications, Trade Terms & Pricing
Importing Flange Bolts requires careful attention to shipping logistics, customs compliance, and secure payment terms. Hebei Bentley Technology Co.,ltd offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. To ensure a smooth transaction, buyers should verify import duties for HS Code 7318.15 in their destination country. 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 Hebei Bentley Technology Co.,ltd — Supplier in China
Finding trustworthy partners is the foundation of successful importing. Ask the supplier of this Flange Bolts for business registration and quality documents before ordering. 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 manufacturers and exporters across 200+ countries. Explore similar products in the Flanges category and connect with top-tier exporters on our comprehensive online B2B marketplace. Start your sourcing journey today.
Import Flange Bolts — Shipping, Logistics & Customs
Importing Flange Bolts 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 for HS Code 7318.15 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 Flange Bolts
What is the wholesale price of Flange Bolts?
The current listed wholesale price for Flange Bolts from Hebei Bentley Technology Co.,ltd is $0.15/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 Hebei Bentley Technology Co.,ltd through EximNext.
What is the Minimum Order Quantity (MOQ) for Flange Bolts?
The supplier, Hebei Bentley Technology Co.,ltd, has set a Minimum Order Quantity (MOQ) of 1 Bags for Flange Bolts. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Flange Bolts?
For international shipping and customs clearance, Flange Bolts is classified under HS Code 7318.15. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
How can I import Flange Bolts from China?
To import Flange Bolts from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Hebei Bentley Technology Co.,ltd. Ensure you have the necessary import licenses for Flanges products in your destination country.
How can I check Hebei Bentley Technology Co.,ltd before ordering?
Open the Hebei Bentley Technology Co.,ltd company profile on EximNext to see the details the company has provided. Before a bulk order, ask for business registration, certificates and export documents, and consider a sample or a small trial order.
What are the key specifications of Flange Bolts?
The key specifications for Flange Bolts supplied by Hebei Bentley Technology Co.,ltd include Carbon Steel Grade 8.8 or 10.9; Stainless Steel 304/316, Full thread or partial thread, metric or imperial sizes (M10-M36 or 3/8"-1-1/2"), and Corresponds to bolt size per DIN 6921 / ISO 4162 standards, approximately 1.5x-2x bolt shank diameter. For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to the supplier through EximNext.
What packaging options are available for bulk orders of Flange Bolts?
Hebei Bentley Technology Co.,ltd offers Flange Bolts with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Flange Bolts the most?
Flange Bolts is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Hebei Bentley Technology Co.,ltd through our platform.
What certifications does this Flange Bolts supplier hold?
Hebei Bentley Technology Co.,ltd maintains international quality certifications. These ensure that the Flange Bolts meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Flange Bolts on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Hebei Bentley Technology 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 Hebei Bentley Technology Co.,ltd.
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