ʻūlū
ʻO ke poʻo paʻa paʻa paʻa keʻa iā ia iho
| Nā kikoʻī kikoʻī d | ST2.2 | ST2.9 | ST3.5 | ST4.2 | ST4.8 | ST5.5 | ST6.3 | ||
| P | Pitch | 0.8 | 1.1 | 1.3 | 1.4 | 1.6 | 1.8 | 1.8 | |
| a | Max | 0.8 | 1.1 | 1.3 | 1.4 | 1.6 | 1.8 | 1.8 | |
| dk | Max | 3.7 | 5.3 | 6.64 | 7.64 | 9.14 | 10.57 | 11.57 | |
| Min | 3.4 | 5 | 6.28 | 7.28 | 8.78 | 10.14 | 11.14 | ||
| k | Max | 1.6 | 2.4 | 2.6 | 3.1 | 3.7 | 4 | 4.6 | |
| Min | 1.4 | 2.15 | 2.35 | 2.8 | 3.4 | 3.7 | 4.3 | ||
| dc | h15 | Max | 5 | 7 | 8 | 9 | 10 | 12.5 | 14 |
| Min | 4.52 | 6.42 | 7.42 | 8.42 | 9.42 | 11.8 | 13.3 | ||
| s | Min | 0.3 | 0.5 | 0.8 | 0.8 | 0.8 | 1 | 1 | |
| a | Ctype | 2 | 2.6 | 3.2 | 3.7 | 4.3 | 5 | 6 | |
| F，FTtype | 1.6 | 2.1 | 2.5 | 2.8 | 3.2 | 3.6 | 3.6 | ||
| Helu Kau | 0 | 1 | 2 | 2 | 2 | 3 | 3 | ||
| M | ≈ | 1 | 3 | 3.9 | 4.4 | 4.9 | 6.4 | 6.9 | |
| Hoʻokomo i ka hohonu/nui | 0.85 | 1.4 | 1.4 | 1.9 | 2.4 | 2.6 | 3.1 | ||
| Hoʻokomo i ka hohonu/ka liʻiliʻi | 1.2 | 1.8 | 1.9 | 2.4 | 2.9 | 3.1 | 3.6 | ||
ʻO ke keʻa galvanized flat head self tapping screw he mea hoʻohui mechanical me kēia mau hana a me nā ʻano:
1. Hana maikaʻi ka hoʻopaʻa ʻana: ʻO ke keʻa nui paʻa paʻa paʻa ponoʻī paʻi ʻia i nā mea ikaika kiʻekiʻe, hiki ke hoʻopaʻa pono i nā ʻāpana like ʻole a mālama i ka paʻa o nā mea hana.
2. Maʻalahi e wehe: Me kona hoʻolālā poʻo kūikawā, hiki ke hoʻopaʻa maʻalahi a wehe ʻia paha me ka hoʻohana ʻana i ka screwdriver, e mālama i ka pae o ka pre punching, e ʻoi aku ka maʻalahi o ka hoʻohana ʻana a me ka mālama manawa.
3. Ka ikaika corrosion kū'ē: Cross shaped flat head self tapping screws is usually made of high-quality materials, and the surface is chemically treated to form a black galvanized oxide film, which has good rust and anti-corrosion effects and hiki ke hoʻohana no ka manawa lōʻihi i loko o ka paʻakikī.
4. Hoʻolālā maʻalahi: i haku ʻia me ke poʻo, ka lāʻau, a me nā ʻāpana wili, maʻalahi e hana a hoʻohana.
5. Hoʻohana nui ʻia: Loaʻa ka nui o nā noi i nā lako mīkini, nā hale kūkulu hale, nā mea hana hale, nā huahana uila, aerospace a me nā māla ʻē aʻe.
6. ʻOi aku ka ikaika: ʻO ke poʻo keʻa palahalaha e hiki ai i ke poʻo paʻa keʻa paʻa ponoʻī ke hoʻopili pono i ka mea kumu, e ʻoi aku ka paʻa a hilinaʻi o ka pilina, me ka ʻoi aku o ka haʻahaʻa haʻahaʻa, a ʻoi aku ka maikaʻi o ka tensile a me ka pale ʻana ma mua o nā wili kuʻuna.
7. ʻOi aku ka paʻa kiʻekiʻe: ʻO ke poʻo keʻa paʻa paʻa i ʻoi aku ka paʻa a hilinaʻi o ka pilina, e hōʻemi ana i ka hiki ke wehe.