Hex-bolt DIN 933 DIN931 Black Galvanized Hot-dip galvanizing Hex Bolts Grade 4.8/8.8/10.9/12.9 – Grace Fasteners
1. Product Overview (产品概述)
Our Hex Head Bolts are the backbone of industrial fastening. Whether you need the high tensile strength of Grade 12.9 for heavy machinery or the superior corrosion resistance of Hot-Dip Galvanizing for outdoor infrastructure, we provide precision-engineered solutions. We support both full-thread (DIN 933) and partial-thread (DIN 931) configurations to meet your structural requirements.
2. Key Features & Advantages (核心优势)
Diverse Strength Grades: From standard Grade 4.8 for general assembly to Grade 10.9 and 12.9 for high-stress applications.
Premium Surface Treatments: * Hot-Dip Galvanized: Best for harsh environments (coastal/industrial).
Zinc Plated: Excellent aesthetics and basic rust protection.
Black Oxide: Ideal for internal components requiring high precision.
Dimensional Accuracy: Strictly follows DIN and ISO tolerances to ensure 100% compatibility with nuts and tapped holes.
3.Technical Specifications
Thread Type: Metric Coarse / Fine Thread
Application: Steel structures, bridges, power towers, mechanical equipment, and automotive industries.
Packaging: Standard export packing (Bulk in cartons + wooden pallets) or customized small box packaging.
4. Why Choose Hebei Grace Metal Products? (为什么选择我们)
Source Factory Advantage: Located in the Yongnian fastener hub, offering competitive pricing and stable supply chains.
Strict Quality Control: Full inspection of dimensions, hardness, and coating thickness before shipment.
One-Stop Supply Chain: Integrated warehouse services to consolidate your orders and save on logistics costs.
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