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Flange lock nuts

Flange lock nuts,nylon indise flange serrated nuts, flange nuts without serrated, din 6923 flange nuts

Flange lock nuts details

Flange lock nuts, serrated or without serrated, carbon steel, stainless steel, size are M5, M6, M8,M10,M12 and above. zinc plated or black surface finish. Grade 4, Grade 6, Grade 8, Grade 10.

Flange lock nuts

Flange serrated nuts

The flange is serrated to provide locking. The serration angle makes the nut only rotate in one direction. They cannot be used with gaskets or on scratched surfaces due to serrations. The serrations help to prevent the vibration of the nut from moving the fastener, thus maintaining the retention of the nut.

Flange nuts without serrated

The flange nut has a wide flange that can be used as an integral washer. This is used to distribute the pressure of the nut over the fixed part, thus reducing the possibility of damage to the part and making it less likely to loosen due to uneven tightening surfaces.

Nylon inside flange lock nut

In the production process of flange nut, a nylon washer is installed. The function is that when the nut is installed, the thread between the nut and the bolt destroys the nylon washer and makes the internal thread tighter, which can improve the anti-corrosion effect again.

Flange lock nut material:

Carbon steel, stainless steel

Flange lock nut production standard:

Din 6923
Grade of Din 6923 flange lock nuts: grade 4, grade 6, grade 8, grade 10
Grade of din 6923 stainless steel flange lock nuts: A2, A4, stainless steel 304, 316, and other grades of stainless steel.

The surface finish of flange lock nuts

Steel nuts: Zinc plated, Black oxide, yellow plated, Galvanized, Chrome plated, Nickel plated.

Stainless steel nuts: Nature color, or polishing.

Thread size:

Carbon steel nuts size: M5, M6, M8, M10, M12, M14, M16, M20
Stainless steel nuts size: M5, M6, M8, M10, M12, M14, M16, M20

Production type of flange lock nuts

Cold forming

Supply ability:

Steel Nuts quantity output per month: 800 tons
Steel Nuts quantity output per month: 200 tons

MOQ for each size

For Grade 4 and grade 6 steel nuts, no requirements of order quantity.
For grade 8 and grade 10 steel nuts, MOQ is 1 ton for each size.
For A2 and A4 stainless steel nuts, no requests for order quantity

Leading time:

30-45days from order to ready for shipment, but according to order quantity.
If small order, our stock availability, totally within 7 days for shipment.


if no requirements, we will do a 25kgs bulk package for cartons, then wooden pallets.

we accept small box package but should let us know how many unite or weights for each box.

Our delivery seaport:

The first select seaport is Shanghai China. The second is the Ningbo seaport.

Most welcome to contact us!

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