DIN6921 High strength grade 8.8/10.9/12.9 black hexagon flange
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.
|Item||Black Structural Bolt Heavy Hex Head Bolts|
|Other bolt||Flange Bolt,Carriage bolt, Guardrail bolt,Socket Bolt,T bolt,Square
bolt and Wing bolt|
|Grade||Gr4.8 Gr8.8 Gr10.9 Gr12.9|
|Releat standard||JIS B 1189 , ISO15072 , EN1662|
|Standard:||DIN933,DIN931DIN6923.DIN603 DIN912 DIN444,DIN315,ASME B18.2.3,ASME
|Material||Stainless Steel: SS201 SS304/SS304L SS316/SS316L SS904L|
A2 A4 GR.B8 GRB8M
|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 Technique||Cold forging, Hot forming, Machining, Heat treatment, Staming, etc|
|Stock Products||Stainless 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.
1) High quality in competitive price
2) Prompt delivery
3) Various types of long- term supply professinal stainless steel