Hexalobular (6 lobe) socket countersunk flat head screws fully threaded
BN 20039
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标准
ISO 14581
特点
| Headform |
Headform
Countersunk head 90°
|
| Drive |
Drive
Hexalobular socket
|
| Thread |
Thread
fully threaded
|
| Material |
Material
Stainless steel
|
| Material type |
Material type
A4
|