Product Details
Head Bolt M6X20 8.8 ISO 4017 DIN 933 Zinc plate Product grades A
This International Standard specifies the characteristics of
hexagon head screws with threads from M1,6
up to and including M64, of product grade A for threads M1,6 to M24
and nominal lengths up to and
including 10 d or 150 mm,whichever is shorter, and product grade B for threads
over M24 or nominal
lengths over 10 d or 150 mm, whichever is shorter.
Shanghai summery industrial machine Co.,Ltd was established in
2006,it is located at Shanghai,which is the most vigorous city in
world.
If you are looking for flange head screws, please contact us for
further information.
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Mechanical and physical peroperties of bolts,screws and studs |
Mechanical and physical peroperties | Property class |
8.8 | 10.9 | 12.9 |
d≦16 mm | d﹥16 mm |
Minimum tensile strength (N/mm2) | min | 800 | 830 | 1040 | 1220 |
Vickers hardness (HV) | min | 250 | 255 | 320 | 385 |
max | 320 | 335 | 380 | 435 |
Brinell hardness (HB) | min | 238 | 242 | 304 | 366 |
max | 304 | 318 | 361 | 414 |
Rockwell hardness (HRC) | min | 22 | 23 | 32 | 39 |
max | 32 | 34 | 39 | 44 |
Company Profile
Shanghai summery industrial machine Co.,Ltd was established in
2006,it is located at Shanghai,which is the most vigorous city in
world.
As a one-stop-stop,we can manufacture,marketing,design,research and
develop,we stand for reliable technology and the flexibility to
cater to your needs.The staff in our proactive sales and service
team is highly trained,we can get the most suitable supplier needs
and delivering the customized to our business partner’s that make
them successful.And also our quick response service that is
unsurpassed in expertise and reliability.
We have good sense of customer priority our experience and
expertise allows our team to fully assess the technical and
commercial viability of products.We place great on quality and
reliability and it has earned us enormous respect and admiration
within automobile,railtransit,new
energy,electronics.mechanical,industrial robot and high-speed
rail,etc.
Understanding the market it evolves and the need to react
positively to those of market,we believe Shanghai Summery
Industrial Machine Co.,Ltd can provide you the most suitable
product and service.