Durable DIN931 External Hex Bolts - 10.9 Grade Steel

Product Description

Specification

Product name	20 years fastener factory direct supply DIN931 high strength carbon steel 10.9 grade blue and white zinc external hexagon bolts
Standard	ISO,DIN,JIS,ANSI,BSW,GB and non-standard fastener according to customers' drawing
Machines	Auto pressing machines, automatic heading machine,CNC machines, cold header high-precision surface grinder machine, involantary grinder machines,Hardness tester, Electrolytic metrical thickness gauge, Vision Measuring Machine,Thickness Gauge and so on
Surface Finishing	Zn- Plated,Ni-plated,Passivated,Tin-plated,Sandblast and Anodized, Polish,Electro Painting,Black Anodize,Plain,Chrome plated,Hot Deep Galvanize(H. D. G. ) ,Brass Plating,Black Oxide etc.
Heat Treatment	Tempering,Hardening,Spheroidizing,Stress Relieving
Manufacture Process	Heading/Machining/Threading/heat treatment/plating/Baking/QA/Package/Shipping
Sample	We can supply the samples for free,if the samples we have in stock
Lead time	7-15 working days as usual,It will based on the detailed order quantity
After-sale service	we will follow up goods for every customer and help solve problem after sales.

The packaging is defined on customer request. This is normally an external cardboard box, inside the pieces can be placed in plastic bags, loose, or in specially thermoformed panels. You can agree with us the packaging you prefer for your products.