White zinc square washer / square gasket M3-M16 5Pcs

The size of nut, flat ring and retaining ring shall be subject to the diameter (thickness) of the matched screwUnit: mm

Specification model

internal diameter

external diameter

Thickness

M8*40*3

8

40

3

M10*40*2.5

10

40

2.5

M12*30*2.5

12

30

2.5

M14*40*3

14

40

3

M16*40*4

16

40

4

Question 1

1. Why does stainless steel have magnetism?

304 stainless steel belongs to the Aolite stainless steel, The Auschwitz in the cold processing process has some or a small amount of conversion into the marcantia, the marcantia is magnetic, so 304 stainless steel is non-magnetic or micromagnetic. Specific can Baidu query 304 stainless steel why magnetic.

Question 2

2. How to identify authentic 304 stainless steel products?

① support the detection of 304 stainless steel special detection solution, if it does not change color, it is authentic 304 stainless steel.
② support chemical composition analysis and spectral analysis.
(3) Support smoke test and simulate actual use environment.

Question 3

What kinds of stainless steel are most commonly used?

1201 stainless steel, suitable for use in dry environment, water is easy to aquatic rust.
② 304 stainless steel, outdoor or humid environment, strong corrosion and acid resistance.
③316 stainless steel, with molybdenum added, has better corrosion resistance and hole corrosion resistance, especially suitable for seawater and chemical media.