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Brand Name : Summery
Model Number : DIN912
Certification : ISO4762
Place of Origin : Shanghai
MOQ : Negotiable
Price : Negotiation
Payment Terms : D/A, L/C, T/T, Western Union
Supply Ability : 10000000
Delivery Time : 7-10 Days
Packaging Details : Poly bags
Product Name : DIN912 socket head cap screw
Material : medium carbon steel
Size : M5x40
Tolerance : 6h
Surface : Zinc plate
Grade : 12.9
M5X40 12.9 ISO 4762 socket head cap screw DIN 912 Product grades A Zinc plate
This International Standard specifies the characteristics of hexagon socket head cap screws with threads from Ml,6 up to and including M64 and product grade A.
  
A hexagon socket head cap screw with thread M5, nominal length I = 40 mm and property class 12.9 is
 designated as follows:
 Hexagon socket head cap screw ISO 4762 - M5 x 40 - 12.9

| 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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