VEDALI HARDWARE CO., LTD
| Payment Terms | L/C, D/A, D/P, T/T, Western Union, MoneyGram |
| Supply Ability | 5000 000 pcs per month |
| Delivery Time | 25 days |
| Packaging Details | 3 kgs each bag , 5 bags each carton . |
| Material | Carbon steel |
| Finish | |
| Color | Blue |
| Hardness | HRC 22 |
| Thread | M4 |
| Length | 15 |
| Brand Name | VDL |
| Model Number | SC209006 |
| Certification | ISO 9001 |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C, D/A, D/P, T/T, Western Union, MoneyGram | Supply Ability | 5000 000 pcs per month |
| Delivery Time | 25 days | Packaging Details | 3 kgs each bag , 5 bags each carton . |
| Material | Carbon steel | Finish | |
| Color | Blue | Hardness | HRC 22 |
| Thread | M4 | Length | 15 |
| Brand Name | VDL | Model Number | SC209006 |
| Certification | ISO 9001 | Place of Origin | China |
| High Light | screws and fasteners ，hardware screws ， Hex head screw bolts | ||
M4 Carbon Steel Blue Coated Screw Bolt Hex Head Fastener for Car
Hex head screw bolts are made from carbon steel with coating instead of normal zinc finishs . coating is specially used for special working conditions like extreme high or low temperature , high requested lubricantion and resistant corrosion etc . coating of screw or bolt is similar with powder coated bolt or screw but different on performance .
Mostly , coated screw or bolt is blue color and green yellow , red , black and white can be made for custom requirements . coated screw is made of carbon steel for the most applications , but stainless steel and aluminum is used for special requests .
Material
Carbon steel with grade 4.8
Optional materials for telfon coated screw bolt like stainless steel , aluminum , brass and titanium etc .
Finish
blue
Dimensions
| Thread | |
| Length | |
| Head diameter | |
| Head height | |
| Drive |
Mechanical Properties
| Rel N/mm2 | 370 |
| Rm N/mm2 | 495 |
| A ( % ) | 33.5 |
| Reduction of areaZ ( % ) | 66 |
| Density g/cm^3 | 7.85 |
| Tensile strength(σb/MPa | 450 |
Final properties data maybe different as dimensions , process and hardening for coated screw
Feature
Leading difference for coated screw compared to normal screws is its coating ,this kind coating with perfect features
1 . Resistant high or low temeperature
coated screw bolt can be worked from 100 degree zero to 260 degree .
2 . Not easy to be loosen
coating is good self lubricant and just 0.4 friction factor .
3 . Resistant corrosion
coating is not mostly dissolved into any chemical solvents .
4 . Not easy to be broken
coated screws are made of carbon steel with good enlongation and ductility .
Tips for use
1 . Do not put coated screw into temeprature over 260 degree .
2 . Not suitable for heavy duty .
3 . Do not scratch coating for long service
Applications
coated screw bolt is used for car , and used for other fields as well like chemical industry , machinery , electronical equipments , building and ocean equipmnets etc .
About customzation
coated screw bolt can be customzied according to your special applications , eg , material , thickness of coating , dimensions , hardness , basic profile of screw and packing etc .
Besides , coated screw , we provide more fasteners with metal and plastic materials for you . eg , different stainless steel screws , various fastener screws , metal stamping parts , custom plastic parts , spacer washers , fastener pins and standard or non-standard bolts nuts .
Company Details
Business Type:
Manufacturer,Exporter,Trading Company,Seller
Year Established:
2000
Total Annual:
2000,000-3500,000
Employee Number:
50~120
Ecer Certification：
Verified Supplier
With many years reputation in hardware filed , VEDALI HARDWARE CO., LTD has entered hardware filed and gained much development in these years , we have over 100 employees and 20 engineers on researching and development , and several branches that are specialized in different hardware for vast demand... With many years reputation in hardware filed , VEDALI HARDWARE CO., LTD has entered hardware filed and gained much development in these years , we have over 100 employees and 20 engineers on researching and development , and several branches that are specialized in different hardware for vast demand...
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