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Vichok Hardware
M6-M14 10.9 Grade Flange Hex Head Bolts Blackened Toothless Flange Surface Outer Hexagon Medium Bolts for Industrial Machinery/Construction/Equipment Assembly/Metal Fabrication
M6-M14 10.9 Grade Flange Hex Head Bolts Blackened Toothless Flange Surface Outer Hexagon Medium Bolts for Industrial Machinery/Construction/Equipment Assembly/Metal Fabrication
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Professional 10.9 grade high-strength outer hexagon flange bolts, engineered with a toothless flange surface and blackened finish for heavy-duty fastening in industrial machinery, construction, equipment assembly and metal fabrication projects. This M6/M8/M10/M12/M14 assortment features a medium bolt design and integrated flange base—eliminating the need for separate washers—while the 10.9 grade high-tensile steel construction delivers exceptional shear and torque resistance. The blackened surface treatment boosts anti-corrosion and wear resistance, and the toothless flange ensures stable, even pressure distribution for tight, vibration-resistant locking, making these bolts a reliable industrial hardware solution for professional engineers, fabricators and construction technicians.
Product Core Specifications
- Grade & Material: 10.9 grade high-strength carbon steel – high tensile strength, excellent shear/torque resistance for heavy-duty use
- Sizing Range: Complete metric sizes M6, M8, M10, M12, M14 – covers industrial, construction and equipment medium-to-heavy fastening needs
- Design Features: Outer hexagon head + toothless flange surface + medium bolt, washer-free integrated design
- Surface Treatment: Professional blackening – enhanced anti-corrosion, anti-rust and wear resistance for harsh working environments
- Flange Property: Toothless smooth flange – even pressure distribution, no damage to fastened surfaces
- Application Compatibility: Works with standard hex wrenches/socket sets, universal for industrial and construction fastening
Multi-Scene Application
Ideal for industrial machinery assembly (production line equipment, heavy machinery, gear boxes), construction projects (steel structure fixing, building hardware, structural connections), equipment maintenance & repair (agricultural machinery, automotive heavy parts, industrial tools), metal fabrication (steel frame construction, metal cabinet assembly, structural metalwork), factory facility installation (conveyor systems, industrial racks, mechanical platforms) and heavy-duty hardware fastening (load-bearing brackets, industrial shelving, heavy equipment bases).
Key Selling Points
- 10.9 Grade High Strength: Industrial-grade tensile and shear resistance, built for heavy-duty load-bearing and vibration-prone environments
- Washer-Free Flange Design: Integrated toothless flange replaces separate washers, saves installation time and ensures stable fixation
- Professional Blackened Finish: Superior anti-corrosion, anti-rust and wear resistance, suitable for indoor industrial and outdoor construction use
- Full Metric Size Assortment: M6-M14 complete sizes, meets all medium-to-heavy industrial and construction fastening needs
- Toothless Flange Surface: Smooth flange prevents scuffing and damage to fastened metal/wood surfaces, even pressure distribution
- Vibration-Resistant Locking: Tight thread engagement + flange pressure, prevents loosening under continuous mechanical vibration
- Universal Hex Compatibility: Works with standard hex tools/socket sets, easy to install and remove for professional operation
Professional Usage Tips
- Select the matching bolt size and length according to load-bearing requirements and material thickness for optimal performance
- Use a torque wrench for precise tightening to avoid over-tightening and bolt breakage in heavy-duty applications
- For long-term outdoor use, apply anti-seize lubricant to threads to prevent rust and facilitate future disassembly
- Ensure the fastened surface is flat to maximize the flange’s pressure distribution and fixation stability
Why choose our 10.9 Grade Blackened Outer Hexagon Flange Bolts?
We manufacture industrial-grade fasteners engineered for extreme performance and reliability in heavy-duty scenarios. Our M6-M14 10.9 grade blackened flange bolts combine high-strength steel construction, a washer-free integrated design and a corrosion-resistant blackened finish—solving the core fastening challenges of industrial machinery, construction and metal fabrication. Every bolt is precision-machined for perfect thread engagement and a smooth toothless flange, ensuring easy installation, vibration-resistant locking and long-lasting performance in the harshest industrial and construction environments. Whether you’re a professional engineer, metal fabricator or construction technician, these bolts deliver the industrial-grade quality and versatility you need for every heavy-duty fastening task.
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