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High Strength Hex Bolts Manufacturer | China Industrial Fasteners Factory Suppliers

Source premium high-strength Hex Bolts from a leading China factory. As professional suppliers, we provide ISO DIN compliant fasteners in carbon and stainless steel for construction and machinery.

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Specification Sheet

Our premium Hex Bolts are engineered for high-strength fastening applications, providing exceptional structural integrity across diverse industrial environments. Manufactured in our own specialized factory, these bolts are designed to meet the most rigorous global engineering requirements, ensuring secure and durable connections for metal structures and machinery.

Utilizing a wide array of high-grade materials including carbon steel and stainless steel, our hex bolts offer versatility in sizing and finishing. Whether you require standard ISO/DIN specifications or fully customized dimensions, we provide precision-engineered fastening solutions that balance mechanical performance with long-term corrosion resistance.

Detailed Parameters

Size RangeM8 - M30 Length Range80mm - 800mm (Customizable)
StandardsISO / DIN / ANSI / ASME / ASTM / BS / AS / JIS Material OptionsQ235 / 35K / 45K / 40Cr / B7 / 20MnTiB / A2 / A4
Steel TypesCarbon Steel & Stainless Steel Property Grade4.8, 8.8, 10.9
Surface FinishBZP, YZP, Zinc Plated or Customizable ManufacturingIn-house Factory Production
MOQ1000 PCS Packing OptionsCarton (ctn), Pallet (plt) or Customizable

Key Advantages

High Strength

Available in grades 4.8 to 10.9 to ensure maximum load-bearing capacity for heavy-duty structures.

Corrosion Resistance

Advanced BZP and YZP plating options protect your fasteners from harsh environmental oxidation.

Global Standards

Fully compliant with ISO, DIN, ASME, and JIS standards for seamless international integration.

Material Diversity

From 40Cr alloy steel to A4 stainless steel, we provide the right material for every application.

Custom Precision

Flexible customization of lengths (up to 800mm) and specialized surface treatments.

Factory Direct

Direct sourcing from our own facility ensures competitive pricing and strict quality control.

Product Gallery

Management Platforms

Inventory Control

Real-time tracking of raw materials like 40Cr and A2 stainless steel for timely delivery.

Quality Assurance

Rigorous testing of Grade 8.8 and 10.9 bolts to meet international mechanical standards.

Order Tracking

Transparent production timelines from forging to surface treatment and final packing.

Spec Customization

Integrated system for managing bespoke length and thread requirements for unique projects.

Logistics Optimization

Optimized pallet and carton packing to reduce shipping costs and prevent transit damage.

Surface Engineering

Precision management of plating thicknesses for BZP and Zinc coatings to ensure durability.

Investment Return Comparison

FeatureGeneric FastenersOur Premium Hex Bolts
Service LifeShort-term/Prone to rustLong-term/Anti-corrosive
Mechanical StrengthInconsistent GradeCertified 8.8 / 10.9 Grade
Precision FitHigh tolerance gapsStrict ISO/DIN compliance
Maintenance CostFrequent replacementLow maintenance cycle
Overall ROILow (due to failure risk)High (stability & longevity)

Frequently Asked Questions

Q: What materials are available for your Hex Bolts?

We offer a comprehensive range of materials including carbon steels (Q235, 35K, 45K, 40Cr, B7, 20MnTiB) and stainless steels (A2, A4) to suit different strength and corrosion requirements.

Q: Can I get a custom length for these bolts?

Yes, while our standard lengths range from 80mm to 800mm, we provide fully customizable length options based on your specific project blueprints.

Q: Which international standards do your products comply with?

Our manufacturing process adheres to global standards including ISO, DIN, ANSI, ASME, ASTM, BS, AS, and JIS, ensuring compatibility worldwide.

Q: What surface treatments do you offer for rust prevention?

We provide several high-performance finishes including BZP (Bright Zinc Plated), YZP (Yellow Zinc Plated), standard zinc plating, and other customizable coatings.

Q: Do you provide free samples for quality verification?

Yes, we provide free samples to our clients so they can verify the material grade, dimensions, and finish before placing a bulk order.

Q: What is the minimum order quantity (MOQ) for bulk orders?

Our standard minimum order quantity is 1000 PCS. However, we can discuss specific requirements for custom-engineered orders.

Ready to secure your project with professional fastening solutions?

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