5/8 Flange Bolt & 6 150 Flange Bolts 6 1500 Flange Bolts | Supplier
5/8 Flange Bolt & 6 150 Flange Bolts 6 1500 Flange Bolts | Supplier
Top-Tier 5/8 Flange Bolt & 6 150 Flange Bolts 6 1500 Flange Bolts Supplier
Slash Your Total Procurement Costs by 30-40% Without Compromising on Tensile Strength or Dimensional Accuracy. Factory-Direct Quality with Full Traceability, ISO 9001, and Rapid Global Shipping.
✅ Free samples for qualified buyers | ✅ 48-hr quote turnaround | ✅ FOB/CIF/EXW terms
The Hidden Cost of Substandard Flange Bolts
Are you facing these critical challenges in your supply chain?
💰 Sky-High Total Cost of Ownership
Traditional US/EU suppliers often add 30-50% margins. Are you paying too much for standard 5/8 flange bolt and 6 150 flange bolts?
⚠️ Inconsistent Batch Quality
Variations in thread pitch, flange diameter, or tensile strength can lead to catastrophic assembly failures and costly downtime.
🚢 Volatile Shipping & Lead Times
Supply chain disruptions cause unpredictable delays. Waiting 12-16 weeks for 6 1500 flange bolts can stall entire projects.
📄 Compliance & Certification Headaches
Missing ASTM, ISO, or RoHS certifications can disqualify your entire procurement. You need a partner who provides full traceability.
📦 High MOQs & Cash Flow Strain
Most suppliers demand massive MOQs. We offer flexible quantities to match your actual consumption, freeing up working capital.
Boen Fastener solves these challenges. We are a 5/8 flange bolt, 6 150 flange bolts, and 6 1500 flange bolts supplier built for the 2026 global market.
Engineering-Grade Solutions: The Boen Fastener Advantage
Powerful Factory & Unbeatable Value
Founded in 2010, our 50,000 sq ft facility houses 200+ automated cold forging and thread rolling machines. We serve 30+ countries, offering factory-direct pricing that eliminates middlemen markups.
Quality Assurance You Can Trust
Every batch of 5/8 flange bolt and 6 150 flange bolts undergoes rigorous testing: Tensile Testing (UTM), Hardness (Rockwell), and Dimensional Checks (Vision System). ISO 9001, CE, RoHS compliant.
OEM/ODM Design & Customization
Need a custom flange diameter, special shank length, or unique coating? Our engineers provide rapid prototyping and full-scale production for 6 1500 flange bolts and custom geometries.
High-Speed Delivery & Logistics Mastery
We maintain a 2,000-ton inventory of raw materials. Average lead time: 15-25 days for standard orders. We handle all shipping documentation, customs clearance, and door-to-door delivery (FOB/CIF/EXW).
Technical Specifications at a Glance
| Specification | 5/8 Flange Bolt | 6 150 Flange Bolts | 6 1500 Flange Bolts |
|---|---|---|---|
| Diameter (Nominal) | 5/8" (15.875 mm) | 6" (152.4 mm) | 6" (152.4 mm) |
| Grade / Material | Grade 8 / 10.9 / 12.9 | ASTM A325 / A490 | ASTM A490 / Custom Alloy |
| Tensile Strength (Min) | 150,000 psi | 120,000 psi | 150,000+ psi |
| Yield Strength (Min) | 130,000 psi | 92,000 psi | 130,000 psi |
| Standards Met | DIN 6921, SAE J429 | ASTM F761, A325 | ASTM F761, A490 |
| Finish / Coating | Zinc, HDG, Dacromet | Mechanical Galv., HDG | HDG, Black Oxide, Custom |
| Typical Application | Automotive, Machinery | Structural Steel, Bridges | Heavy Construction, Offshore |
* All products come with Material Test Certificates (MTC) and full traceability reports.
Real-World Application Scenarios
Our 6 150 flange bolts are used in critical infrastructure for precise load distribution.
High-tensile 5/8 flange bolt solutions for vibration-prone environments, reducing downtime.
Custom 6 1500 flange bolts designed for extreme loads and harsh environmental conditions.
Just-in-time delivery of grade 12.9 flange bolts for drivetrain and chassis assembly.
Trusted by Industry Leaders Worldwide
"Handan Boen has been a reliable partner for our 5/8 flange bolt and 6 150 flange bolts needs. Their quality control and on-time delivery are world-class." – Procurement Director, Major European OEM
What Our Global Clients Say
Procurement Manager, Texas
"We switched to Boen for our 5/8 flange bolt supply. The consistency in thread quality and the tensile strength has been exceptional. We cut our fastener costs by 35%."
Technical Director, Lyon
"Their 6 1500 flange bolts met our stringent ASTM A490 specifications perfectly. The MTCs and traceability were impeccable. A true partner for critical infrastructure."
Operations Lead, Dubai
"The speed of delivery for our 6 150 flange bolts order was incredible. From PO to port in 18 days. Boen's logistics team handles everything seamlessly."
Frequently Asked Questions (FAQ)
What is the difference between a 5/8 flange bolt and a standard hex bolt?
A 5/8 flange bolt features an integrated flange beneath the head that acts as a washer, distributing the load over a wider area. This eliminates the need for a separate washer in many applications, simplifies assembly, and provides a more consistent clamping force compared to a standard hex bolt.
What are the typical lead times for 6 150 flange bolts?
For standard 6 150 flange bolts (ASTM A325), our lead time is typically 15-25 days from order confirmation. Custom grades or coatings may require 25-35 days. We also offer urgent production slots for loyal clients.
Do you provide Material Test Certificates (MTC) for 6 1500 flange bolts?
Absolutely. All our 6 1500 flange bolts come with full traceability, including mill certificates, chemical analysis, and mechanical property test reports. We comply with EN 10204 3.1 and ASTM standards.
Can you customize the flange diameter or head height for OEM applications?
Yes. We specialize in OEM/ODM custom fasteners. Our engineering team can modify flange diameter, head height, shank length, and thread specifications to meet your exact blueprints. Rapid prototyping is available.
How do you ensure the quality of your flange bolts batch to batch?
We implement a 3-stage QC process: Incoming raw material inspection (chemical & mechanical), In-process monitoring (dimensional & hardness), and Final inspection (tensile testing, thread gauging, visual inspection). Our ISO 9001:2015 certified system ensures consistency.
What is the minimum order quantity (MOQ) for bulk orders?
Our standard MOQ is 5,000 pcs for 5/8 flange bolt sizes and 500 pcs for 6 150 flange bolts or 6 1500 flange bolts. However, we offer flexible terms for trial orders or long-term contracts. Contact us to discuss your specific needs.
How do you handle international shipping and customs?
We offer FOB, CIF, and EXW terms. We have dedicated freight forwarders experienced in shipping to the US, Europe, and Southeast Asia. We handle all export documentation, including customs clearance, to ensure a smooth delivery process.
Do you offer free samples for evaluation?
Yes, we provide free samples to qualified buyers. You only pay for the shipping cost. This allows you to evaluate the quality of our 5/8 flange bolt and 6 150 flange bolts before committing to a bulk order.
Ready to Optimize Your Fastener Supply Chain?
Stop Overpaying for Standard Flange Bolts. Get Factory-Direct Pricing, Certified Quality, and Rapid Delivery.
Limited-Time Offer: Free Sample Kit for Qualified Buyers
100% Quality Guarantee or Your Money Back
Estimate Shipping Costs in 2 Minutes
📍 Hanguang Industrial Park, Yongnian District, Handan City, Hebei, China
🕐 Daily 09 am - 05 pm (GMT+8)
About the Author
David Chen – Senior Quality Assurance & Supply Chain Director at Handan Boen Fastener Manufacturing Co., Ltd.
With over 15 years in the industrial fastener sector, David specializes in high-strength bolt manufacturing, global sourcing optimization, and quality management systems. He is a regular contributor to industry discussions on supply chain resilience and cost-effective manufacturing.
