Particle Board Screws with Cross Recess Type Z, Raised Countersunk Head
DIN 7505 - 1986 米字槽半沉头塑料牙螺钉（纤维板钉）
See all versions and complete specifications: Particle Board Screws with Cross Recess Type Z, Raised Countersunk Head — Full Specification Page
| Size | P | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|
| 3 | 3.5 | 2 | 6.64 | 2 | 3.2 | 1.6 | 2.15 | 1.67 | 7 | 1 |
| 4 | 6 | 3 | 11.57 | 3.35 | 5.7 | 2.6 | 3.7 | 3.22 | 12 | 1.6 |
| 3.5 | 4.5 | 2 | 8.64 | 2.55 | 4.2 | 2 | 2.7 | 2.22 | 9 | 1.1 |
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