Economy Post

Test Method: Corrosion test conducted according to ASTM B117 standard.

Test Conditions: ① Salt Spray Test (5%NaCL35℃) ② Salt water volume 1.0~2.0ml/hr ③ Salt water PH value 6.5~7.2

Salt Spray Test	MISUMI Standard Product	MISUMI Economy Type	Market Product 1	Market Product 2
Material	SS400	Equivalent to SS400 or SUM23	S45C	SUM23
Surface Treatment	Electroless Nickel Plating	Nickel Plating	Electroless Nickel Plating	Nickel Plating
Coating Thickness	2~3μm	2~3μm	1~2μm	1~2μm
Before Test
After 24 Hours
Test Results	No Significant Corrosion	No Significant Corrosion	Large Area Corrosion	Complete Corrosion
	Corrosion Resistance: Misumi Economic-Type has corrosion resistance equivalent to Misumi Standard Product.

The above data is limited to the sample test results.

Comparison	Misumi Economy Type	Market Distribution Products
Feature ①	Relief holes are processed into male screws, allowing screws to be tightened fully.	Incomplete threads remain at the bottom, preventing full tightening.
Feature ②	Chamfering and burr removal on the cross-section ensure a sleek appearance.	Without chamfering, it is easy to cut your hands.
Product Example

※ The above is limited to sample comparison results, so please use it for reference only.