Hex Flange Head Concrete Anchor Screw

The Hex Flange Head Concrete Anchor Screw from China Xiaoguo® is an integrated, non-expanding stress mechanical anchor bolt. It is made of carbon steel or stainless steel and can be treated with electro-galvanizing, yellow zinc, or Dacromet coatings on its surface.

The head is a hexagonal flange head, which can be installed using a standard socket or an impact wrench; the bottom of the flange disc is equipped with anti-loosening teeth, which increase the contact area and resist vibration.The screw part is equipped with specially designed self-cutting threads and its surface has been hardened.

It is more convenient, more reliable and less prone to vibration than traditional expansion bolts. The Hex Flange Head Concrete Anchor Screw are suitable for use in scenarios such as shelves, guardrails, pipe supports, and steel structure fixation..

Material Introduction

The material of the Hex Flange Head Concrete Anchor Screw directly determines their strength, anti-corrosion ability and service life. The mainstream materials fall into two categories: carbon steel and stainless steel.

（1）Carbon steel

The most commonly used and with the highest cost-effectiveness.

Heat treatment process: carburizing + quenching + low-temperature tempering. The surface of the threaded part forms a hardened layer, while the core remains resilient.

Applicable temperature range: –40°C to +80°C

（2）Stainless steel

Antifungal ability:

304: Suitable for general damp conditions, mild acidity and alkalinity. Suitable for outdoor areas in the interior, kitchens, and bathrooms.

316: Suitable for coastal areas, seawater, and chemical plants.

Surface condition: Original coating, no need for electroplating.

Applicable temperature range: –40°C to +120°C, with a short-term limit of up to 200°C.

（3）Comparison of Material Properties

Material Surface hardness Core hardness Tensile strength Resistant to salt fog

Carbon steel + electro-galvanizing HRC 52–58 HRC 32–40 ≥800 MPa 48–96 h

Carbon steel + Dacromet coating HRC 52–58 HRC 32–40 ≥800 MPa ≥1000 h

Stainless steel A2 HV 300 HV 300 700 MPa Hundreds of hours

Stainless steel A4 HV 300 HV 300 700 MPa Thousands of hours

FAQ

（1）How to prevent different specifications from being mixed in the same box?

We use compartmentalized plastic trays or individual small plastic bags to distinguish each specification.

（2）Will it rust during the shipping process?

Carbon steel anchor bolts do have the risk of getting damp during maritime transportation. Our standard protection measures include: inner bag sealing + desiccant + VCI anti-rust paper, which can provide a 6-month anti-rust period. You can also choose vacuum packaging.

（3）Can the outer box label be printed with our company's logo?

OK. We can print your LOGO on the outer box and offer customization of label formats.

（4）What should we do if the packaging of the Hex Flange Head Concrete Anchor Screw is damaged or the quantity is insufficient?

Take photos upon delivery, and keep the photos of the outer box and the inner bag. Contact our after-sales service and provide the photos and the tracking number. We will solve the problem for you within 24 hours.