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Categories | Flange Head Screws |
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Brand Name: | Summery |
Model Number: | Din6921 Flange Head Screws |
Place of Origin: | shanghai |
MOQ: | Negotiable |
Delivery Time: | 7-10 days |
Packaging Details: | According to customer requirements |
Certification: | ISO 4162 |
Payment Terms: | Western Union, MoneyGram, L/C, D/A, T/T |
Name: | Din6921 Flange Head Screws |
Class: | 8.8 |
Size: | M5x16 |
Material: | Middle carbon steel |
Finish: | Plain / Zinc Plated / Nickel / Black Oxide / Dacromet |
Application fields: | Automotive |
DIN6921– M5x16– 8.8 Dacromet middle carbon steel Flange Head Screws>
This International Standard specifies the characteristics of flange hexagon bolts ,with product grade A, with threads from M5 up to and including M16 and property classes 8.8, 9.8, 10.9 and A2-70,A4-70.
Flange head screws includes two kinds of serrated and smooth plane.
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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.
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 |
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