In the construction and industrial sectors, Fixings are the critical components that bridge the gap between heavy-duty structures and base materials like concrete, brick, or drywall. At Sunning Industries, we leverage our 20-year manufacturing heritage in Handan to produce a robust range of mechanical fixings designed for safety, load-bearing capacity, and ease of installation.

From our global service center in Zhengzhou, we ensure that our fixing solutions meet the rigorous safety codes of Europe (ETA), America, and the high-demand infrastructure sectors in the CIS and Middle East.

High-Performance Construction Fixings

Our fixing range is engineered to provide maximum pull-out resistance and security in both cracked and non-cracked concrete.

1. Expansion Anchors (Wedge & Sleeve)

Our wedge anchors (often referred to as Through Bolts) are the industry standard for securing structural steel and heavy machinery.

Table 1: Expansion Anchor Specifications & Standards

2. Heavy-Duty Chemical & Frame Fixings

For applications requiring vibration resistance or edge-distance flexibility, our chemical studs and nylon frame fixings provide a versatile alternative to traditional mechanical expansion.

Table 2: Specialty Fixing Performance Data

3. Surface Protection for Long-Term Safety

Since fixings are often embedded in harsh environments, Sunning Industries offers advanced surface treatments to prevent hydrogen embrittlement and atmospheric corrosion.

Table 3: Recommended Finishes by Environment

Why Sunning Industries is the Global Choice for Fixings

• Tested Reliability: We conduct rigorous pull-out and shear testing in our Handan facility to ensure all fixings exceed their rated capacities.

• Full Documentation: We provide technical data sheets (TDS) and safety data sheets, essential for project approvals in Europe and North America.

• Logistics Excellence: Our Zhengzhou team specializes in "just-in-time" delivery for large-scale infrastructure projects across the CIS and Southeast Asia.

Professional Q&A for Engineers and Buyers

Q: What is the advantage of using a Wedge Anchor over a Sleeve Anchor?

A: Wedge Anchors (Through Bolts) are generally used for heavy-duty structural steel in solid concrete because they provide a smaller hole diameter relative to the bolt size. Sleeve Anchors are more versatile for thinner materials or masonry, as the expanding sleeve distributes the pressure over a larger surface area, reducing the risk of cracking the base material.

Q: Are your fixings compliant with 2026 Seismic (C1/C2) standards?

A: Yes. We have updated our heavy-duty anchor line to meet the latest seismic performance categories. These fixings are designed to maintain their grip even during the dynamic loads and crack movements associated with seismic events.

Q: How do I choose between Zinc Plated and Hot-Dip Galvanized for fixings?

A: For indoor applications, Zinc Plating is sufficient and provides a cleaner finish. However, for any exterior application or environment exposed to moisture, Hot-Dip Galvanized (HDG) is mandatory to prevent rust, as the thicker zinc coating provides a sacrificial barrier that lasts significantly longer.