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Sekrup tapping silang countersunk galvanis
| Spesifikasi thread | ST2.2 | ST2.9 | ST3.5 | ST4.2 | ST4.8 | ST5.5 | ST6.3 | ST8 | ST9.5 | |||
| P | Pitch | 0.8 | 1.1 | 1.3 | 1.4 | 1.6 | 1.8 | 1.8 | 2.1 | 2.1 | ||
| a | Maks | 1.6 | 2.2 | 2.6 | 2.8 | 3.2 | 3.6 | 3.6 | 4.2 | 4.2 | ||
| dk | Maks | 3.8 | 5.5 | 7.3 | 8.4 | 9.3 | 10.3 | 11.3 | 15.8 | 18.3 | ||
| Min | 3.5 | 5.2 | 6.9 | 8 | 8.9 | 9.9 | 10.9 | 15.4 | 17.8 | |||
| k | Maks | 1.1 | 1.7 | 2.35 | 2.6 | 2.8 | 3 | 3.15 | 4.65 | 5.25 | ||
| Nomer Slot | 0 | 1 | 2 | 2 | 2 | 3 | 3 | 4 | 4 | |||
| M1 | Cruciform | 1.9 | 3.2 | 4.4 | 4.6 | 5.2 | 6.6 | 6.8 | 8.9 | 10 | ||
| M2 | slot Zigzag | 2 | 3 | 4.1 | 4.4 | 4.9 | 6.3 | 6.6 | 8.8 | 9.8 | ||
| lan | Nilai referensi | Tipe C | 2 | 2.6 | 3.2 | 3.7 | 4.3 | 5 | 6 | 7.5 | 8 | |
| Tipe F | 1.6 | 2.1 | 2.5 | 2.8 | 3.2 | 3.6 | 3.6 | 4.2 | 4.2 | |||
| Tipe R | / | / | 2.7 | 3.2 | 3.6 | 4.3 | 5 | |||||
Cara milih sekrup self-tapping sing cocog
1. Pilih dening materi: Pilih ngawut-awut poto beda adhedhasar karakteristik materi sing kudu mancep ing. Contone, kanggo bahan hard, milih ngawut-awut nutul poto karo kekuatan dhuwur, dawa lan diameteripun cocok.
2. Miturut pilihan Utas: Self nunyuk ngawut-awut biasane duwe rong jinis: Utas coarse lan Utas nggoleki, lan Utas beda biasane cocok kanggo bahan beda.
3. Pilih miturut wangun saka sirah: Kepala pentagonal self nunyuk meneng luwih kuat tinimbang sirah babak biasa meneng poto nutul, nanging rega uga relatif dhuwur.