Shanghai Summery Industrial Machine Co. , Ltd.
| Payment Terms | L/C, D/A, D/P, Western Union |
| Supply Ability | 10000000 |
| Delivery Time | 7-10 Days |
| Packaging Details | Poly bags |
| Product Name | Self tapping screw |
| Material | steel |
| Cross recess | Type H |
| Surface | Zinc plate |
| Project | ISO7049/DIN7981 |
| Size | ST 4.2x21 |
| Brand Name | Summery |
| Model Number | ISO7049 |
| Certification | DIN7981 |
| Place of Origin | China,shanghai |
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Product Specification
| Payment Terms | L/C, D/A, D/P, Western Union | Supply Ability | 10000000 |
| Delivery Time | 7-10 Days | Packaging Details | Poly bags |
| Product Name | Self tapping screw | Material | steel |
| Cross recess | Type H | Surface | Zinc plate |
| Project | ISO7049/DIN7981 | Size | ST 4.2x21 |
| Brand Name | Summery | Model Number | ISO7049 |
| Certification | DIN7981 | Place of Origin | China,shanghai |
| High Light | self tapping pan head screws ，self tapping galvanized screws | ||
ISO7049 DIN7981 pan head Self tapping screws
This International Standard specifies the characteristics of Cross recessed pan head tapping screws with thread sizes from ST 2,2 to ST 9,5 inclusive.
Surface hardness:The minimum surface hardness after heat treatment shall be 450 HV 0,3
Core hardness:The core hardness af?er heat treatment shall be
270 HV 5 to 390 HV 5 for threads S ST3,9, and
270 HV 10 to 390 HV 10 for threads > ST4,2.
Company Details
Business Type:
Manufacturer
Employee Number:
60~80
Ecer Certification：
Active Member
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 flexib... 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 flexib...
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