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Carbon Steel Black Oxide High Strength Hex Head Bolts Grade 10.9 12.9 Astm A490

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Carbon Steel Black Oxide High Strength Hex Head Bolts Grade 10.9 12.9 Astm A490

Brand Name : crever
Model Number : DIN931
Certification : ISO
Place of Origin : Jiangsu,China
MOQ : Negotiable
Price : Negotiable
Payment Terms : T/T, L/C, D/P, MoneyGram
Supply Ability : 300 ton per month
Delivery Time : 10-30 working days
Packaging Details : bulk packing, small box packing, packing as required
Name : DIN931 Hexagon Head Bolts
Size : M3x10-M64x300mm
Surface : black oxide
Thread : half thread, partical thread
Head : hexagon head
Material : high strength carbon steel
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Carbon Steel Black Oxide High Strength Hex Head Bolts Grade 10.9 12.9 Astm A490

1. Description:

The external hexagonal screw is a hexagonal screw, also known as a hexagonal screw. The Chinese standard for external hexagonal screws is based on Chinese standard parts. Abbreviated as the national standard. Then this external hexagonal screw standard refers to the external hexagonal screw national standard.


The outer hexagon bolt standard has one standard is the grade standard. Grade standard is divided into 4.8 grade and 8.8 grade. These two grades are used in particular on the market. Especially 4.8 grade external hexagonal bolt. Because it is much cheaper than 8.8 class outer hexagon bolt. Use more widely, of course. Some. But for high-demanding products. Because of the high requirements of hardness and other aspects. This requires the use of 8. 8 grade external hexagon bolt. 8.8 class external hexagon bolt from the hardness and torque of screws, etc. More secure in the use of products. More fastening. More stable.

Mechanical part, cylindrical threaded fastener with nuts. A type of fastener consisting of a head and a screw (a cylinder with external threads), which shall be matched with the nut. Used to fasten two parts with through holes. This form of connection is called bolt connection. If you unscrew the nut from the bolt, you can separate the two parts, so the bolt connection is detachable.

2. Specification Requirements:

Product NameM3-M64 DIN931 Carbon Steels and Stainless Steels full Threaded Hex Bolt
Process Methodcold forging & hot forging
SizeDiameter M5-M64 , length 40mm-500mm
StandardDIN931/DIN933/930/961/960/6914
SurfaceZinc, hot galvanize, black oxide
Grade4.8, 8.8S,10.9S,12.9S
Size Tolerance+/- 2.5%~-2.5%
WT Tolerance+/- 2.5%~2.5%
Tensile Strength830~1030 MPa/1040~1240 MPa

3. Applications:

The most common hexagon bolt.Applicable to grade two, fifth grade, eighth grade and stainless steel.In most cases, it is threaded.Automotive, mechanical, electronic products, furniture products, music components, computers, power switches, small switches, hardware and plastic molds, sports equipment and so on.


Hexagon screws, standard parts and fasteners are widely used in all kinds of mechanical equipment, electronic products, communication equipment, furniture and equipment, construction and other production, installation and maintenance.Roads, Bridges, tunnels, urban rail transit system, high speed railway, sailors handicraft, thermal power, wind power, nuclear power, transmission and distribution, machinery, petrochemical, aviation, steel roof structure, etc.


4. Drawing Technical Data:



Diameter (d)Pitchskbb (L >125mm)b (L >200mm)
M50.808.00-7.783.65-3.35162235
M61.0010.00-9.784.15-3.85182437
M81.2513.00-12.735.45-5.15222841
M101.5017.00-16.736.58-6.22263245
M121.7519.00-18.677.88-7.32303649
M142.0022.00-21.678.98-8.62344053
M162.0024.00-23.1610.29-9.71384457
M182.5027.00-26.1611.85-11.15424861
M202.5030.00-29.1612.85-12.15465265
M222.5032.00-31.0014.35-13.65505669
M243.0036.00-35.0015.35-14.65546073
M273.0041.00-40.0017.35-16.65606679
M303.5046.00-45.0019.12-18.28667285
M333.5050.00-49.0021.42-20.58727891
M364.0055.00-53.8022.92-22.08788497
M394.0060.00-58.8025.42-24.588490103
M424.5065.00-63.1026.42-25.589096109
M454.5070.00-68.1028.42-27.5896102115
M485.0075.00-73.1030.42-29.58102108121
M525.0080.00-78.1033.50-32.50*116129

5. More Pictures:



DIN931 HEX HEAD BOLT, HEX CAP SCREW, CARBON STEEL, BLACK OXIDE



Product Tags:

stainless steel hex head screws

      

hex head machine screw

      
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Carbon Steel Black Oxide High Strength Hex Head Bolts Grade 10.9 12.9 Astm A490 Images

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