Expansion bolt

SKU: SINSTON ZR199

Description

Description: Expansion bolt is a special threaded connector used to fix pipe support/hanger/bracket or equipment on walls, floors and columns. The grade of carbon steel bolts is divided into more than 10 grades such as 3.6, 4.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9 and 12.9.

Numbers before and after decimal point indicate nominal tensile strength and yield-strength ratio of bolt material respectively. For example, labeled 8.8 grade bolt indicates that the tensile strength of material reaches 800MPa, and yield-strength ratio is 0.8, that is, its yield strength reaches 800×0.8=640MPa.

Stainless steel bolts can be classified into 45, 50, 60, 70 and 80 grades. The materials mainly include austenite A1, A2, A4, martensite and ferrite C1, C2 and C4. Their expressions, such as A2-70, and “before” and “after” respectively, indicate the bolt materials and strength grades.

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faq

1.What materials are available for your sealing gaskets?

We offer a variety of materials for sealing gaskets, including rubber (such as nitrile rubber, silicone rubber, fluorine rubber, etc.), metal (such as stainless steel, carbon steel, etc.), asbestos, graphite, and more. Different materials have different characteristics and are suitable for different working conditions and media.

2.What is the temperature and pressure range that your sealing gaskets can withstand?

The specific temperature and pressure range depends on the selected gasket material and design. Generally, our sealing gaskets can work in a temperature range of -50°C to 200°C, and the pressure range can vary from low pressure to high pressure. The specific parameters will be clearly indicated in the product manual.

3.How to choose the right sealing gasket for my needs?

When choosing a sealing gasket, several factors need to be considered, such as the working medium, temperature, pressure, seal surface form, etc. Our professional team can provide advice and selection guidance based on your specific needs to ensure that you choose the most suitable sealing gasket.

4.How do you ensure the quality of your sealing gaskets?

We strictly follow international and industry standards for production and quality control. We conduct strict inspections at every stage of the production process, from raw material procurement to ensure the stable and reliable quality of the sealing gaskets.

5.Can you provide custom-sized sealing gaskets?

Yes, we can provide custom-sized sealing gaskets according to the customer’s requirements to meet various special needs.

6.What is your delivery time?

The delivery time will vary depending on the order quantity and production schedule. Generally, the delivery time for standard-sized sealing gaskets is shorter, while custom-sized ones may take a little longer. We will do our best to meet the customer’s delivery requirements and provide accurate delivery time information when the order is confirmed.

7.What is your after-sales service like?

We provide high-quality after-sales service. If you encounter any problems during use, we will respond promptly and provide solutions. We also conduct regular follow-up visits to customers to understand the product usage situation and continuously improve our service.