black steel double-threaded screw

Specifications

black steel double-threaded screw
SGS audited
More than 20 years experience in special fastener field

^{Name:     black steel double-threaded screw}

 

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.