Name: PHILLIPS flat head screw

Material: 316 stainless steel

Surface: Untreated

Packaging: Plastic bags/paper boxes

The specifications are composed of d * L, such as M4 * 20 (thread diameter 4mm * length 20mm), including head length

Why does stainless steel also have magnetism?

304 stainless steel belongs to austenitic stainless steel. Some or a small amount of austenite is transformed into Martensite during cold working. Martensite is magnetic, so 304 stainless steel is non-magnetic or micro magnetic.

How to identify authentic 304 stainless copper products?

① Support the detection of 304 stainless steel special testing solution, and if it does not change color, it will be authentic 304 stainless steel.

② Support chemical composition analysis and optical analysis.

③ Support smoke testing and simulate actual usage environments

What are the most commonly used types of stainless steel?

① 201 stainless steel, suitable for use in dry circular dams, easy to rust in water when exposed to water. ② 304 stainless steel, outdoor or humid environment, corrosion resistant

③ 316 stainless steel, with molybdenum added, has better corrosion resistance and pore resistance, especially suitable for seawater and chemical media.

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