Dry wall screws
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| Popis | Tvar | ČSN | ISO | DIN | PN/M | Jiné |
|---|---|---|---|---|---|---|
| cross recessed trumpet head with fine thread | TN-E | 18182 | ||||
| cross recessed trumpet head with double thread | TN-D | 18182 | ||||
| cross recessed trumpet head with rough thread | TN-G | 18182 | ||||
| cross recessed trumpet head with tapping thread and drilling point | TB | 18182 |