Specifications

black hex nut
Surface Finish:black
SGS audited
More than 20 years experience in fastener feild

Name: black hex nut ; black nut ; Hex nut

 

 

 

 

 

Ability for the material of this kind of nut:

Grade	3.6,4.6,4.8,5.6,6.8,8.8,9.8,10.9,12.9,etc
Carbon steel	Gr.B,Gr.C,Gr.D,Gr.36,Gr.58,1010,1015,1016,1020,1045,etc
Alloy steel	4130,4140,G51150,etc
Stainless steel	201,202,301,302,303,304,316,310,430,etc
Brass	C28000,C37710,C3450,C27200,etc
Bronze	C51900,C60600,C17200,etc
Alumimum	100,5052,6061,6063,etc

 

Ability for the surface finish:

Electroplate	Zinc plated(while,colour,dacroment),Nickel   plated,copper plated,gold plated,chrome(3+Rohs &6+ )     plated,anodic oxidation,etc
Dip plating	black oxide coating,hot dip galvanizing,etc
Flame plating	Light oil,spray coating,electrophoretic   coating,etc
Polishing	Grinding and polishing,etc,except mirror finish

 

Ability for the tolerance:

Roundess	0.002mm
Cylindricity	0.003mm
Roughness	Ra0.32
Straightness	0.01/200mm

 

How about the packing details?

Plastic bags inside,

then carton(normally32cm*23cm*13cm),

then fumigation free pallets outside or as your requirements.

 

How aout the delivery?

(1),Delivery port:ShangHai/NingBo

(2),Delivery way to avoid the anti-dumping

 

Why should you  choose us ?

The plant has built for about 20 years,we have our own way 

to supply you the high quality products with lowest price and

delivery on time as we can .

We have abundant experience for exporting so that you could

avoid lots of risks.