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DIN6921 High strength grade 8.8/10.9/12.9 black hexagon flange bolts

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Jiaxing Haina Fastener Co.,Limited
Country/Region: China
Contact Person:Mr TonyFang

DIN6921 High strength grade 8.8/10.9/12.9 black hexagon flange bolts

Brand Name : HNF
Model Number : M5-M20
Certification : ISO9001:2008
Place of Origin : China Made
MOQ : 6000 PCS
Price : Negotiation
Payment Terms : L/C, T/T, Western Union, MoneyGram
Supply Ability : 600TON / per month
Delivery Time : 15-25 DAYS
Packaging Details : Cartons+Pallets
Name : DIN6921 High strength grade 8.8/10.9/12.9 black hexagon flange bolts
Size : M6
Material : high strength steel black
Standard : DIN6921
Length : 10mm--100mm
Production Process : Hot forging
Class : grade 8.8 /10.9 /12.9
Surface : Black
Head : Hex head bolts
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DIN6921 High strength grade 8.8/10.9/12.9 black hexagon flange bolts


Flange by hexagon head bolts and flange (hexagon gaskets and hexagonal fixed one below) and screw (cylinder) with external thread of the integration of the two parts of bolt, nut to cooperate, two hole is used for fastening parts.Flange bolts have a circular flange under the head that acts looks like a washer to distribute the load. Flange bolts that are non-serrated are sometimes so it also called frame bolts. Hex flange bolts virtually eliminate the need for washers because the area under the bolt head is wider and creates a larger area for even distribution of pressure. We also supply hex flange nuts or hex nut that work in tandem with our hex flange bolts. We have all kinds grades of hex flange bolts, hex flange nuts, and hex flange screws to fit a wide range of applications.

Generally divided into the following categories:

1, hexagon head types: one is flat of the brain, the other is a concave of the brain.
2, the surface color categories: according to different needs, surface is plated white, the army green, the color yellow, corrosion resistance of dacromet.
3, flange type: according to the use of flange bolt location is different, the size of the tray for each are not identical, otherwise flat or toothed, toothed non-slip effect.
4, according to the connection of loading mode, have common and articulation hole. Articulation hole with flange bolts should cooperate and the size of the hole, when used in the lateral force.
In addition to meet the needs of the lock after installation, valve stem hole, the hole can make not loose bolts by vibration.
Some flange bolt not polished rod part of the thread to do, call thin rod flange bolts. This kind of flange bolt is conducive to the force of the connection.

These bolts are also called Frame bolts. A hex head for use with a wrench. Meets DIN 6921 (1983).Two types all allowed, full threaded and half threaded ,as you need.All of our flange products are high quality tested to ensure they meet or exceed all applicable industry standards. Manufacturer certifications are available if request.


ItemBlack Structural Bolt Heavy Hex Head Bolts
Other boltFlange Bolt,Carriage bolt, Guardrail bolt,Socket Bolt,T bolt,Square bolt and Wing bolt
GradeGr4.8 Gr8.8 Gr10.9 Gr12.9
Releat standardJIS B 1189 , ISO15072 , EN1662
Standard:DIN933,DIN931DIN6923.DIN603 DIN912 DIN444,DIN315,ASME B18.2.3,ASME B18.5
MaterialStainless Steel: SS201 SS304/SS304L SS316/SS316L SS904L
Steel Grade: Gr.4.8,5.8,8.8,10.9,12.9; SAE: Gr.2,5,8;
Finishing:Zinc(Yellow,White,Blue,Black,Colour),Hop Dip Galvanized(HDG),Black Oxide,Geomet,Dacroment,Nickel plated,Zinc-Nickel plated,Telfon
Production TechniqueCold forging, Hot forming, Machining, Heat treatment, Staming, etc
Stock ProductsStainless steel: DIN6923 DIN912 DIN603 DIN315,DIN933,DIN931,DIN934


Bolt: mechanical parts, with nuts cylindrical threaded fasteners.By the head and the screw (with external thread of the cylinder) of two parts of fasteners, to used with nut, used for fastening the two parts with hole.This kind of connection form according to bolt connection.Such as screw the nut on the bolt, and can make the two parts separately, so the bolt is a detachable connection.


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Advantages :

1) High quality in competitive price
2) Prompt delivery
3) Various types of long- term supply professinal stainless steel screws

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DIN6921 High strength grade 8.8/10.9/12.9 black hexagon flange bolts Images

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