Black Oxide Grade 8 Steel Weld Nut

Black Oxide Grade 8 Steel Weld Nut

 

Surface Blackening Principle:

In order to improve the anti rust ability of steel parts, the surface of steel parts is oxidized into smooth ferric oxide with strong oxidant. The ferric oxide oxidized at low temperature (about 130 ℃) is dark black.

 

Nut	Description
Product name	Black Oxide Grade 8 Steel Weld Nut
Material	Stainless steel, Carbon Steel
Dimensions	M4-M16
Thread tolerance	6G,6E
Standard	ISO, DIN, ANSI, JIS, BS,GB and Non-standard
Surface treatment	Natural,Black Oxidization, Zinc Plating
Service available	OEM /ODM/Customized Design
Quality control	0 defects,100% inspection before packing
Inspection machine	CMM inspection machine, X-ray flaw detection instrument, Calipers
Application	Auto industry, Health Care, Machine,Construction

 

1) Production process

Quartet welding nut through setting is in contact with the flange on the end face of agnail, using agnail screwing in the flange positioning within the groove can guarantee the quartet when welding welding nut can be firmly on the flange, to avoid tilt, fall off due to high temperature melting phenomenon, additional agnail can avoid spark formation during welding welding slag particles within the thread into the nut.

2) Standard

National standard GB (GB / T), German standard (DIN), British standard (BS), Japanese standard (JB)

Pros and cons

3) The Surface Blackening Operation Process:
Workpiece clamping → degreasing → cleaning → pickling → oxidation → cleaning → saponification → hot water boiling and washing → inspection

 

 

Other welding nuts pictures

 

 

 

 

 

 

Questions:

1. Q: Are you a factory or a trading company?

A: We have our own factory and professional sales team.

2. Q: Can you provide free sample?

A: Standard existing sample for free; customized sample, we will charge sample fee and refund the sample fee once format order confirmed.

3. Q: What's your MOQ?

A: 1pc for stocked items, flexible MOQ for each customized design.

4. Q: What products do you mainly supply?

A: Standard and custom made items.

5. Q: What is your delivery time?

A: Around 3-4 days after payment for standard stock items; around 15-25 days after payment for customized order. The specific lead time depends on the products & quantity.

6. Q: What's your delivery method?

A: Any delivery method is available and supported. We can delivery by air-express, air cargo and by sea according to the order quantity or as customer required.

7. Q: Which port will you ship the goods ?

A: Normally Ningbo or Shanghai, China port. Other ports can be available.

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