HDG Hot-Dip Galvanized Round Head Guardrail Splicing Bolt

Product Overview

HDG Hot-Dip Galvanized Round Head Guardrail Splicing Bolts and matched nuts are professional dedicated fasteners for guardrail assembly, fence connection and steel structure splicing projects. Manufactured from premium high-quality carbon steel and processed by standard hot-dip galvanizing technology, these bolts integrate excellent structural strength and superior anti-corrosion performance. The smooth round head design eliminates sharp edges for higher on-site safety and neat appearance, while precision rolling threads ensure accurate fitting and non-loosening connection. Suitable for construction, traffic facilities, municipal engineering and outdoor landscape projects, they provide long-term stable and reliable fastening solutions for various outdoor engineering scenarios.

Core Advantages

• Excellent Corrosion Resistance: Professional hot-dip galvanized (HDG) surface forms a dense protective zinc layer, which effectively isolates air, rainwater and corrosive substances. It perfectly adapts to outdoor open-air, humid and harsh weather environments, greatly extending product service life and reducing later maintenance replacement frequency.
• Stable High Strength: Adopting high-quality carbon steel raw materials and precision machining technology, the finished bolts feature stable torque performance and excellent tensile strength. They maintain firm connection without loosening or deformation under long-term vibration and outdoor exposure.
• Safe & Aesthetic Structure: Optimized round head design removes sharp burrs, improving construction safety and avoiding scratch injuries during installation and use. The uniform galvanized surface also brings neat and beautiful overall visual effect for engineering facilities.
• Complete Specification Coverage: Rich conventional sizes are available, including bolt lengths from 12mm to 30mm and thread specifications from M3 to M12, fully covering most conventional guardrail and fence engineering installation requirements.
• Flexible Customization Service: Support personalized customization including custom brand logo, exclusive packaging design and special graphic processing, helping customers improve brand image and meet differentiated project demands.

Application Scenarios

These round head galvanized bolts are widely applicable to construction site safety guardrails, road traffic isolation fences, municipal engineering enclosures, garden landscape fences and various steel structure splicing projects. Whether it is temporary construction facility installation or long-term outdoor fixed engineering connection, they can deliver stable, safe and durable fastening performance.

Product Parameters

Quality Assurance

• All products are manufactured in strict accordance with mainstream international standards such as DIN and ANSI to ensure standardized specifications and consistent performance.
• Implement full-process 100% quality inspection, with strict screening and testing from raw material procurement, production processing to finished product delivery to eliminate defective products.
• Provide professional and comprehensive after-sales support and technical services, respond to customer questions quickly, and solve product and engineering matching problems efficiently.

Why Choose Us?

• Professional Factory Experience: Located in Hebei fastener production base, we have years of mature manufacturing experience, stable production capacity and reliable product quality.
• Diversified Customization: Support multi-dimensional personalized customization of size, strength, surface treatment, logo and packaging to meet diverse project needs.
• Stable & Durable Quality: Standard hot-dip galvanizing process and precision thread processing ensure excellent anti-rust performance and stable connection strength.
• High Cost Performance: Factory direct sales without middlemen, with favorable bulk order prices, effectively helping customers control overall engineering costs.---

High-quality HDG round head guardrail bolts with complete specifications and reliable performance.

Welcome to contact us for the latest factory quotation and professional customization solutions!