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1 2 20 Flange Bolt & 1 2 Flange Bolt 1 2 Inch Flange Bolt | Maker

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1 2 20 Flange Bolt & 1 2 Flange Bolt 1 2 Inch Flange Bolt | Maker

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1 2 20 Flange Bolt & 1 2 Flange Bolt โ€” Precision-Grade 1 2 Inch Flange Bolt for Industrial Applications

Eliminate costly joint failures & supply chain delays. Our 1 2 20 flange bolt series delivers certified SAE J429 Grade 8 strength, full traceability, and factory-direct pricing โ€” engineered for OEMs, distributors, and EPC contractors in North America & Europe.

๐Ÿ“ฆ Get Free Quote in 24h โ€” Factory Direct

Why Your Current 1 2 Flange Bolt Supply Is Costing You More Than You Think

Procurement and engineering teams across the US & EU face the same recurring headaches:

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Inconsistent Thread Quality

A leading agricultural machinery OEM reported 12% rejection rate on imported 1 2 20 flange bolt lots due to pitch errors. Rework cost them over $47k per quarter.

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Hidden TCO from Unreliable Suppliers

Distributors pay 18โ€“25% premium for domestic 1 2 inch flange bolt stock, while low-cost offshore sources miss lead times 3ร— more often. Both hurt your bottom line.

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Certification Gaps

Without ISO 898-1 or SAE J429 compliance, your engineering team cannot approve the 1 2 flange bolt for safety-critical assemblies. Delays cascade.

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Logistics & Minimum Order Chaos

Many suppliers require 10,000+ MOQ for 1 2 20 flange bolt sizes, forcing you to overstock or face stockouts. Neither is acceptable in 2026.

โฑ๏ธ These issues erode 5โ€“9% of procurement ROI annually. There is a better way.

Engineered 1 2 Inch Flange Bolt โ€” Built for Reliability, Backed by Data

Boen Fasteners delivers a complete range of 1 2 20 flange bolt and 1 2 flange bolt variants engineered to meet or exceed ASTM A325 / SAE J429 Grade 8. Every batch is third-party tested.

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Factory-Direct Pricing

Eliminate 2โ€“3 layers of margin. Our 1 2 20 flange bolt saves 22โ€“35% vs. distributor networks.

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Full Traceability

Heat numbers, mill certs, and coating records on every 1 2 flange bolt lot. QC reports included.

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15-Day Lead Time

Standard production for 1 2 inch flange bolt โ€” 15 days. Express air freight available in 5 days.

๐Ÿ“Š Technical Specifications โ€” 1 2 20 Flange Bolt Series

Parameter1/2โ€ณ-20 UNC Flange Bolt1/2โ€ณ Flange Bolt (Fine)1/2โ€ณ Flange Bolt (Coarse)
Diameter1/2โ€ณ (12.7 mm)1/2โ€ณ (12.7 mm)1/2โ€ณ (12.7 mm)
Threads per Inch202013
GradeGrade 8 (SAE J429)Grade 5 / Grade 8Grade 5 / Grade 8
MaterialAlloy Steel 10B21 / 40CrCarbon Steel / Alloy SteelCarbon Steel / Alloy Steel
Hardness (HRC)33โ€“3933โ€“3933โ€“39
Tensile Strength (min)150,000 psi120,000 / 150,000 psi120,000 / 150,000 psi
Coating OptionsZinc / HDG / Dacromet / GeometZinc / HDG / DacrometZinc / HDG / Dacromet
CertificationsISO 898-1, SAE J429, ASTM A325ISO 898-1, SAE J429ISO 898-1, SAE J429
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Agricultural Machinery

A Kansas-based tractor manufacturer replaced their premium supplier with our 1 2 20 flange bolt and cut fastener cost by 31% while maintaining zero field failures over 18 months.

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Structural Steel & Construction

EPC contractors in the EU use our 1 2 inch flange bolt for steel-to-steel connections, benefiting from full EN 14399 compliance and batch traceability.

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Automotive & Heavy Truck

A Tier-1 suspension supplier qualified our 1 2 flange bolt after 200,000-cycle fatigue testing. Now 4M+ pieces shipped annually.

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General Industrial OEM

From conveyor systems to hydraulic presses, our 1 2 20 flange bolt is the standard choice for engineers who demand repeatable clamp load.

Trusted by Engineering Teams in 30+ Countries

10+ years of export expertise โ€” real factories, real certifications, real results.

1 2 20 Flange Bolt & 1 2 Flange Bolt 1 2 Inch Flange Bolt | Maker
1 2 20 Flange Bolt & 1 2 Flange Bolt 1 2 Inch Flange Bolt | Maker
1 2 20 Flange Bolt & 1 2 Flange Bolt 1 2 Inch Flange Bolt | Maker

๐Ÿข Brands That Trust Our 1 2 20 Flange Bolt

1 2 20 Flange Bolt & 1 2 Flange Bolt 1 2 Inch Flange Bolt | Maker 1 2 20 Flange Bolt & 1 2 Flange Bolt 1 2 Inch Flange Bolt | Maker 1 2 20 Flange Bolt & 1 2 Flange Bolt 1 2 Inch Flange Bolt | Maker 1 2 20 Flange Bolt & 1 2 Flange Bolt 1 2 Inch Flange Bolt | Maker
1 2 20 Flange Bolt & 1 2 Flange Bolt 1 2 Inch Flange Bolt | Maker
ISO 9001
1 2 20 Flange Bolt & 1 2 Flange Bolt 1 2 Inch Flange Bolt | Maker
CE
1 2 20 Flange Bolt & 1 2 Flange Bolt 1 2 Inch Flange Bolt | Maker
UL
1 2 20 Flange Bolt & 1 2 Flange Bolt 1 2 Inch Flange Bolt | Maker
FCC
1 2 20 Flange Bolt & 1 2 Flange Bolt 1 2 Inch Flange Bolt | Maker
1 2 20 Flange Bolt & 1 2 Flange Bolt 1 2 Inch Flange Bolt | Maker
1 2 20 Flange Bolt & 1 2 Flange Bolt 1 2 Inch Flange Bolt | Maker

"We switched our entire 1 2 20 flange bolt supply to Boen. Their quality consistency and on-time delivery outperformed our previous European supplier โ€” at 40% lower cost."

โ€” Marcos V., Supply Chain Director, Industrial Equipment Manufacturer, Spain

โ“ Frequently Asked Questions โ€” 1 2 20 Flange Bolt & 1 2 Flange Bolt

Q1: What is the difference between a 1 2 20 flange bolt and a standard hex bolt?

A 1 2 20 flange bolt has an integrated flange under the head that distributes clamp load over a wider area, eliminating the need for a separate washer. The "20" refers to 20 threads per inch (UNC). This design improves joint integrity and reduces assembly time.

Q2: What grades are available for your 1 2 flange bolt?

We stock Grade 5 (SAE J429) and Grade 8 (SAE J429) for our 1 2 flange bolt range. Grade 8 offers 150,000 psi minimum tensile strength, ideal for high-stress applications. We also offer ASTM A325 for structural use.

Q3: What coatings do you offer for the 1 2 inch flange bolt?

Standard options: Zinc plating (clear/yellow/blue), Hot-Dip Galvanizing (HDG), Dacromet, and Geomet. For corrosion resistance in marine environments, we recommend Dacromet-coated 1 2 inch flange bolt โ€” 720+ hours salt spray.

Q4: What is the MOQ for a 1 2 20 flange bolt order?

Standard MOQ is 5,000 pieces per size. For trial orders or urgent projects, we offer a "Quick Start" program with 500-piece minimum at a small premium. Contact us for details.

Q5: Do you provide a Certificate of Conformance (CoC) and material test reports?

Yes. Every shipment of 1 2 flange bolt includes a CoC (ISO 9001) and mill test reports upon request. Third-party inspection (SGS, TรœV, Intertek) is available at cost.

Q6: What is the typical lead time for a 1 2 inch flange bolt order to the US?

Production: 15 working days. Sea freight to US West Coast: 18โ€“22 days. Air freight: 5โ€“7 days total. We also maintain a 1 2 inch flange bolt buffer stock for fast dispatch.

Q7: Can you customize the flange diameter or head height on the 1 2 20 flange bolt?

Absolutely. Our OEM/ODM capability allows custom flange diameter, head height, drive type (Torx, hex, socket), and under-head serrations. Submit your drawing for a feasibility review.

Q8: What payment terms do you offer for international buyers?

Standard: T/T (30% deposit, 70% before shipment). For established clients and repeat orders, L/C at sight or net 30/60 days can be considered. We also accept PayPal for small trial orders.

โญ What Our Customers Say About Our 1 2 20 Flange Bolt

1 2 20 Flange Bolt & 1 2 Flange Bolt 1 2 Inch Flange Bolt | Maker
David Chen Procurement Manager, US Distributor

"We've been sourcing 1 2 flange bolt from Boen for 2 years. Their Grade 8 quality is consistent, and pricing is 28% below our previous supplier. Highly recommended."

1 2 20 Flange Bolt & 1 2 Flange Bolt 1 2 Inch Flange Bolt | Maker
Andreas Weber Engineering Director, German OEM

"The technical documentation and traceability for their 1 2 20 flange bolt meet our strict TรœV requirements. Zero non-conformances in 12 shipments."

1 2 20 Flange Bolt & 1 2 Flange Bolt 1 2 Inch Flange Bolt | Maker
Sarah Mitchell Operations Lead, UK Construction

"Quick turnarounds on urgent 1 2 inch flange bolt orders. The team at Boen understands our deadlines and always delivers on time."

1 2 20 Flange Bolt & 1 2 Flange Bolt 1 2 Inch Flange Bolt | Maker

โœ๏ธ About the Author

James Liu โ€” Senior Fastener Engineer & Export Quality Lead

With 14 years in industrial fastener manufacturing and export compliance, James leads Boen's technical team in qualifying 1 2 20 flange bolt, 1 2 flange bolt, and 1 2 inch flange bolt for global OEMs. He holds certifications in ISO 9001 auditing and SAE fastener standards.

๐Ÿ”’ Secure Your Supply of 1 2 20 Flange Bolt โ€” Factory Direct

Limited-time: Free sample set (50 pcs) for first-time qualified buyers. ย |ย  โณ Offer valid for next 14 days.

โœ… 100% quality guarantee or full refund ย |ย  โœ… No minimum for trial orders

๐Ÿ“ง shuan@fastenboen.com ย |ย  mary@fastenboen.com ย |ย  grace@fastenboen.com ย |ย  stella@fastenboen.com

Hanguang Industrial Park, Yongnian District, Handan City, Hebei Province, China

ยฉ 2026 Handan Boen Fastener Manufacturing Co., Ltd. All rights reserved. | 1 2 20 Flange Bolt ยท 1 2 Flange Bolt ยท 1 2 Inch Flange Bolt โ€” Engineered in China. Trusted Worldwide.

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