ASTM A325 A490 High strength grade 8.8/10.9/12.9 Hex head bolts ,
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Hex bolts, also called hexagon head screw bolts, hex head cap
bolts, hex-cap screws,allen screw or machine bolts and so on, are a
very common choice when it comes to construction and repair.Hexagon head bolts, commonly called hex head cap screws, are bolts
with a hexagonal or six sided head. Hex bolts has six sided headare the industry standard for fasteners
with forged heads. A common feature on a hex cap screw is a washer surface directly
under the head which creates a better seal..A hex head screw bolt is actually produced within tighter
tolerances and can be used anywhere a hex head bolt is used for.
The term “high strength” is one of rather ambiguous fastener terms.
Many people in the industry would interpret the phrase “high
strength” to refer to any bolt that has been quenched and tempered
to develop its strength. Additionally, the ASTM specification ASTM
A325 A490 is commonly referred to as being manufactured from a
“high strength, alloy steel”, even though this material is not heat
treated.Each different about the hex head bolt material has
particular properties to fit specific applications. Hexagon screw
head bolts are made from many of materials to accommodate the wide range of applications in which hex bolts are used. Below are just
a few of the more common types of hexagon screw head bolts for
Because of its fully threaded body, this is used in many of
applications such as in the vehicle repair industry when attaching
a motor to a machinery. Different form a screw TYPE, hex bolts are designed to be inserted
through holes in assembled parts, because these do not have their
own mating internal threads and are tightened by torqueing the
head. Hex bolts are not pointed where hex bolt have a chamfered point to
protect the first thread from damage and to faciliate entry into an
internally threaded part such as a nut or tapped holes.Also, these can be used with pulley to adjust the belt tension.
|Item||Black Structural Bolt Heavy Hex Head Bolts|
|Type||Flange Bolt,Carriage bolt, Guardrail bolt,Socket Bolt,T bolt,Square
bolt and Wing bolt|
|Grade||Gr4.8 Gr8.8 Gr2 Gr5 A325 A490|
|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|
Production process: wire rod, wire drawing, drawing, cold forging,
threading, dipping, inspection, packing, shipment.The hex head bolts are be used in connecting.Hexagon head bolts can be used for a lot of different applications
that include fastening wood, steel, and other construction materials for projects such as briges,
docks,highway structures, buildings and so on. Hex bolts with forged heads are also commonly used as headed anchor
bolts. Also uesd to fasten two or more parts together to form an
1. Part Carbon steel nuts are in stock,Like hex nut,weld nut,cage
nut,cap nut,flange nut ,wing nut.
2. Stainless steel and carbon steel big size bolts and nuts are
Super Quality and Competitive price.