
1. DIN7991 gba apẹrẹ ori ori countersunk, apẹrẹ skru ori countersunk ki o le jẹ danu lori dada, kii yoo jade, mu ẹwa naa pọ si. Ni akoko kanna, hex n pese gbigbe iyipo to dara julọ, dinku iṣeeṣe ti sisun ati ibajẹ. Nigbati ipele agbara giga (nigbagbogbo 10.9 grade) ti a ṣe ti irin alloy ti lo, o ni fifẹ ti o dara ati idena rirẹ. Awọn skru DIN7991 jẹ ki awọn skru rọrun lati fi sori ẹrọ ati mu, ati pe o dara fun awọn ohun elo nibiti o nilo ifasilẹ loorekoore.
2. Hexagon flat head screw DIN7991 ti wa ni lilo pupọ ni ọpọlọpọ awọn aaye, gẹgẹbi awọn ọkọ ayọkẹlẹ ati awọn ọkọ ayọkẹlẹ titun aaye agbara, aaye afẹfẹ ologun, aaye ile-iṣẹ eru ọkọ oju omi, aaye ẹrọ iwosan, aaye ẹrọ ounje, aaye ẹrọ ibaraẹnisọrọ itanna ati aaye agbara afẹfẹ.
| Orukọ ọja | DIN7991 Hex iho countersunk ori skru |
| Ohun elo | Erogba irin, Irin alagbara |
| Dada Ipari | Sinkii ofeefee, Blackened, Blue ati funfun sinkii, Bleached |
| Àwọ̀ | Yellow, Dudu, bulu Funfun, Funfun |
| Standard Nọmba | DIN7991 |
| Ipele | 4.8,8.8,10.9,12.9,A2-70,A4-70 |
| Iwọn opin | M3 M4 M5 M6 M8 M10 M12 M14 M16 M18 M20 M22 M24 |
| Fọọmu okun | Okun isokuso, Okun Alabọde, Okùn ti o dara |
| Ibi ti Oti | Hebei, China |
| Brand | Muyi |
| Ṣe akopọ | Apoti + paali paali + paali |
| Ọja naa le ṣe adani | |
| 1. DIN7991 gba apẹrẹ ori ori countersunk, apẹrẹ skru ori countersunk ki o le jẹ danu lori dada, kii yoo jade, mu ẹwa naa pọ si. Ni akoko kanna, hex n pese gbigbe iyipo to dara julọ, dinku iṣeeṣe ti sisun ati ibajẹ. Nigbati ipele agbara giga (nigbagbogbo 10.9 grade) ti a ṣe ti irin alloy ti lo, o ni fifẹ ti o dara ati idena rirẹ. Awọn skru DIN7991 jẹ ki awọn skru rọrun lati fi sori ẹrọ ati mu, ati pe o dara fun awọn ohun elo nibiti o nilo ifasilẹ loorekoore. 2. Hexagon flat head screw DIN7991 ti wa ni lilo pupọ ni ọpọlọpọ awọn aaye, gẹgẹbi awọn ọkọ ayọkẹlẹ ati awọn ọkọ ayọkẹlẹ titun aaye agbara, aaye afẹfẹ ologun, aaye ile-iṣẹ eru ọkọ oju omi, aaye ẹrọ iwosan, aaye ẹrọ ounje, aaye ẹrọ ibaraẹnisọrọ itanna ati aaye agbara afẹfẹ. | |
| Oso Spec D | M3 | M4 | M5 | M6 | M8 | M10 | M12 | M14 | M16 | M18 | M20 | M22 | M24 | |
| P | okùn ipolowo | 0.5 | 0.7 | 0.8 | 1 | 1.25 | 1.5 | 1.75 | 2 | 2 | 2.5 | 2.5 | 2.5 | 3 |
| α | tol.(+2) | 90° | 90° | 90° | 90° | 90° | 90° | 90° | 90° | 90° | 90° | 90° | 60° | 60° |
| b | L≤125 | 12 | 14 | 16 | 18 | 22 | 26 | 30 | 34 | 38 | 42 | 46 | 50 | 54 |
| 125 L≤ 200 | / | / | / | 24 | 28 | 32 | 36 | 40 | 44 | 48 | 52 | 56 | 60 | |
| L:200 | / | / | / | / | / | 45 | 49 | 53 | 57 | 61 | 65 | 69 | 73 | |
| dk | max = onipo | 6 | 8 | 10 | 12 | 16 | 20 | 24 | 27 | 30 | 33 | 36 | 36 | 39 |
| min | 5.7 | 7.64 | 9.64 | 11.57 | 15.57 | 19.48 | 23.48 | 26.48 | 29.48 | 32.38 | 35.38 | 35.38 | 38.38 | |
| ds | max = onipo | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 24 |
| min | 2.86 | 3.82 | 4.82 | 5.82 | 7.78 | 9.78 | 11.73 | 13.73 | 15.73 | 17.73 | 19.67 | 21.67 | 23.67 | |
| e | min | 2.3 | 2.87 | 3.44 | 4.58 | 5.72 | 6.86 | 9.15 | 11.43 | 11.43 | 13.72 | 13.72 | 16 | 16 |
| k | o pọju | 1.7 | 2.3 | 2.8 | 3.3 | 4.4 | 5.5 | 6.5 | 7 | 7.5 | 8 | 8.5 | 13.1 | 14 |
| s | ipinfunni | 2 | 2.5 | 3 | 4 | 5 | 6 | 8 | 10 | 10 | 12 | 12 | 14 | 14 |
| min | 2.02 | 2.52 | 3.02 | 4.02 | 5.02 | 6.02 | 8.025 | 10.025 | 10.025 | 12.032 | 12.032 | 14.032 | 14.032 | |
| o pọju | 2.1 | 2.6 | 3.1 | 4.12 | 5.14 | 6.14 | 8.175 | 10.175 | 10.175 | 12.212 | 12.212 | 14.212 | 14.212 | |
| t | max = onipo | 1.2 | 1.8 | 2.3 | 2.5 | 3.5 | 4.4 | 4.6 | 4.8 | 5.3 | 5.5 | 5.9 | 8.8 | 10.3 |
| min | 0.95 | 1.55 | 2.05 | 2.25 | 3.2 | 4.1 | 4.3 | 4.5 | 5 | 5.2 | 5.6 | 8.44 | 9.87 | |