How to choose countersunk head hexagonal self tapping screws?

We all know that China has vast size and resources, and many foreign businessmen will choose to buy screw fasteners in China. The screws produced by Shi Shi Tong are also sold all over the world. The main exporters are the United States, Germany, the United Kingdom, Canada, Japan, South Korea, Australia and other countries. So how do foreign investors judge the quality of their products? Taking the countersunk self tapping screw as an example, how can we find a high quality self-tapping screw factory?

Shi Shi Tong bought three countersunk self tapping screw with different price, and compared them with the self-tapping screws produced by Shi Shi Tong . It was found that the quality of the screw products in two was not up to standard, one was that the material was inferior, the inferior stainless steel 201 was used to replace the stainless steel 304 with less nickel content, and the other was that the threads had no general rules. The self-tapping screws produced by Shi Shi Tong are 316 materials with grade 304 or higher absolute, and the shipment will be certified and inspected with the material.

Some customers asked about the price of countersunk self tapping screw, saying that the price of the Shi Shi Tong is more expensive than the price bought in a certain way, but still hopes that the world will help him to produce, because the quality of the online purchase is unstable, the supply is unstable, in fact, it also increases the internal purchase cost. In accordance with customer requirements, the company provides the standard of countersunk self tapping screw in countersunk head, and the specification and size table of self-tapping screw. After the customer has confirmed the size, he immediately placed an order for the production of Shi Shi Tong.

Skype: kalyn qin M: +86 18124507113 Tel: +86 0755-85296744 Email: annie.li@szsst88.com Add: No. 11, Dinghou Road, Dongfang Community, Songgang Street, Baoan District, Shenzhen, Guangdong, China