The drawing and datasheet of Yellow Brass Knurled Nut GB6170-86 as below:

We serve size from M2 to M8 to meet your particular requirements, Or your requirements is beyond our standard specifications. Send us your drawing to discuss more details to be sastified your enquiry then.

* Notes: Measurement by manual, different batch have a lot of difference in tolerance range. If precise value is critical factor based on your requirement. Feel free contact our sales rep. to Confirmed.

Except Yellow Brass Knurled Nut GB6170-86, We have another kinds of nut to serve all of you. Welcome to send us your enquiry for specific products.

Except Nuts/Nails, We provided Screw, Bolt, Washer/Gasket, Clamp and another hardware accessories etc. Neutral Size or OEM Service.

Our oversea sales office is located in Shenzhen City, Guangdong & Haikou Hainan, and sourcing department & warehouse was located in Guangzhou City, Guangdong. All orders of yours would be shipped out from Warehouse in Guangzhou.

Direction of Googgle Map to Haikou Office: Room 1805-1, Floor 18^th, Xinda Business Building, Guomao Avenue, Longhua District, Haikou Hainan, P.R.C.
Direction of Googgle Map to Guangzhou Office: Room 102, No. 7 10^th Street Eastern Caier village, Donghuan Street, Panyu District, Guangzhou. P.R.C.

Now, for payment methods and shipment way what you concorned, check the postcast as below to figure it out. Or more details please allow us to introduce our sales representative Mr.Alvin Wong to all of you.
One more thing, Pay more attention to our main products: Screws, Nuts/Nails, Washer, Gasket and another hardware accessories etc.
Thank you so much!