DIN 6921 flange bolts Class 8.8 sy 10.9
| Anaran'ny vokatra | HEX BOLT DIN 931/ISO4014 tapany kofehy |
| Malagasy | DIN,ASTM/ANSI JIS EN ISO,AS,GB |
| kilasy | Grade vy: DIN: Gr.4.6,4.8,5.6,5.8,8.8,10.9,12.9;SAE: Gr.2,5,8; ASTM: 307A, A325, A490, |
| vita | Zinc (Mavo, Fotsy, Manga, Mainty), Hop Dip Galvanized (HDG), Black Oxide, Geomet, Dacroment, anodization, Nickel plated, Zinc-Nickel plated |
| Fomba famokarana | M2-M24: Froging mangatsiaka, M24-M100 Hot Forging, Machining sy CNC ho an'ny fastener namboarina |
| Vokatra namboarina Lead time | 30-60 andro, |
| Screw kofehy | M1.6 | M2 | M2.5 | M3 | (M3.5) | M4 | M5 | M6 | (M7) | M8 | M10 | M12 | ||
| P | dity | 0.35 | 0.4 | 0.45 | 0.5 | 0.6 | 0.7 | 0.8 | 1 | 1 | 1.25 | 1.5 | 1.75 | |
| b | L≤125 | 9 | 10 | 11 | 12 | 13 | 14 | 16 | 18 | 20 | 22 | 26 | 30 | |
| 125＜L≤200 | 15 | 16 | 17 | 18 | 19 | 20 | 22 | 24 | 26 | 28 | 32 | 36 | ||
| L＞200 | 28 | 29 | 30 | 31 | 32 | 33 | 35 | 37 | 39 | 41 | 45 | 49 | ||
| c | max | 0.25 | 0.25 | 0.25 | 0.4 | 0.4 | 0.4 | 0.5 | 0.5 | 0.6 | 0.6 | 0.6 | 0.6 | |
| min | 0.1 | 0.1 | 0.1 | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 | ||
| da | max | 2 | 2.6 | 3.1 | 3.6 | 4.1 | 4.7 | 5.7 | 6.8 | 7.8 | 9.2 | 11.2 | 13.7 | |
| ds | max=habe nominal | 1.6 | 2 | 2.5 | 3 | 3.5 | 4 | 5 | 6 | 7 | 8 | 10 | 12 | |
| Grade A | min | 1.46 | 1.86 | 2.36 | 2.86 | 3.32 | 3.82 | 4.82 | 5.82 | 6.78 | 7.78 | 9.78 | 11.73 | |
| Grade B | min | 1.35 | 1.75 | 2.25 | 2.75 | 3.2 | 3.7 | 4.7 | 5.7 | 6.64 | 7.64 | 9.64 | 11.57 | |
| dw | Grade A | min | 2.54 | 3.34 | 4.34 | 4.84 | 5.34 | 6.2 | 7.2 | 8.88 | 9.63 | 11.63 | 14.63 | 16.63 |
| Grade B | min | 2.42 | 3.22 | 4.22 | 4.72 | 5.22 | 6.06 | 7.06 | 8.74 | 9.47 | 11.47 | 14.47 | 16.47 | |
| e | Grade A | min | 3.41 | 4.32 | 5.45 | 6.01 | 6.58 | 7.66 | 8.79 | 11.05 | 12.12 | 14.38 | 17.77 | 20.03 |
| Grade B | min | 3.28 | 4.18 | 5.31 | 5.88 | 6.44 | 7.5 | 8.63 | 10.89 | 11.94 | 14.2 | 17.59 | 19.85 | |
| L1 | max | 0.6 | 0.8 | 1 | 1 | 1 | 1.2 | 1.2 | 1.4 | 1.4 | 2 | 2 | 3 | |
| k | Habe anarana | 1.1 | 1.4 | 1.7 | 2 | 2.4 | 2.8 | 3.5 | 4 | 4.8 | 5.3 | 6.4 | 7.5 | |
| Grade A | max | 1.225 | 1.525 | 1.825 | 2.125 | 2.525 | 2.925 | 3.65 | 4.15 | 4.95 | 5.45 | 6.58 | 7.68 | |
| min | 0.975 | 1.275 | 1.575 | 1.875 | 2.275 | 2.675 | 3.35 | 3.85 | 4.65 | 5.15 | 6.22 | 7.32 | ||
| Grade B | max | 1.3 | 1.6 | 1.9 | 2.2 | 2.6 | 3 | 3.74 | 4.24 | 5.04 | 5.54 | 6.69 | 7.79 | |
| min | 0.9 | 1.2 | 1.5 | 1.8 | 2.2 | 2.6 | 3.26 | 3.76 | 4.56 | 5.06 | 6.11 | 7.21 | ||
| k1 | Grade A | min | 0.68 | 0.89 | 1.1 | 1.31 | 1.59 | 1.87 | 2.35 | 2.7 | 3.26 | 3.61 | 4.35 | 5.12 |
| Grade B | min | 0.63 | 0.84 | 1.05 | 1.26 | 1.54 | 1.82 | 2.28 | 2.63 | 3.19 | 3.54 | 4.28 | 5.05 | |
| r | min | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 | 0.2 | 0.25 | 0.25 | 0.4 | 0.4 | 0.6 | |
| s | max=habe nominal | 3.2 | 4 | 5 | 5.5 | 6 | 7 | 8 | 10 | 11 | 13 | 16 | 18 | |
| Grade A | min | 3.02 | 3.82 | 4.82 | 5.32 | 5.82 | 6.78 | 7.78 | 9.78 | 10.73 | 12.73 | 15.73 | 17.73 | |
| Grade B | min | 2.9 | 3.7 | 4.7 | 5.2 | 5.7 | 6.64 | 7.64 | 9.64 | 10.57 | 12.57 | 15.57 | 17.57 | |
| Halavan'ny kofehy b | - | - | - | - | - | - | - | - | - | - | - | - | ||
| Screw kofehy | (M14) | M16 | (M18) | M20 | (M22) | M24 | (M27) | M30 | (M33) | M36 | (M39) | M42 | ||
| P | dity | 2 | 2 | 2.5 | 2.5 | 2.5 | 3 | 3 | 3.5 | 3.5 | 4 | 4 | 4.5 | |
| b | L≤125 | 34 | 38 | 42 | 46 | 50 | 54 | 60 | 66 | 72 | - | - | - | |
| 125＜L≤200 | 40 | 44 | 48 | 52 | 56 | 60 | 66 | 72 | 78 | 84 | 90 | 96 | ||
| L＞200 | 53 | 57 | 61 | 65 | 69 | 73 | 79 | 85 | 91 | 97 | 103 | 109 | ||
| c | max | 0.6 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 1 | 1 | |
| min | 0.15 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.3 | 0.3 | ||
| da | max | 15.7 | 17.7 | 20.2 | 22.4 | 24.4 | 26.4 | 30.4 | 33.4 | 36.4 | 39.4 | 42.4 | 45.6 | |
| ds | max=habe nominal | 14 | 16 | 18 | 20 | 22 | 24 | 27 | 30 | 33 | 36 | 39 | 42 | |
| Grade A | min | 13.73 | 15.73 | 17.73 | 19.67 | 21.67 | 23.67 | - | - | - | - | - | - | |
| Grade B | min | 13.57 | 15.57 | 17.57 | 19.48 | 21.48 | 23.48 | 26.48 | 29.48 | 32.38 | 35.38 | 38.38 | 41.38 | |
| dw | Grade A | min | 19.64 | 22.49 | 25.34 | 28.19 | 31.71 | 33.61 | - | - | - | - | - | - |
| Grade B | min | 19.15 | 22 | 24.85 | 27.7 | 31.35 | 33.25 | 38 | 42.75 | 46.55 | 51.11 | 55.86 | 59.95 | |
| e | Grade A | min | 23.36 | 26.75 | 30.14 | 33.53 | 37.72 | 39.98 | - | - | - | - | - | - |
| Grade B | min | 22.78 | 26.17 | 29.56 | 32.95 | 37.29 | 39.55 | 45.2 | 50.85 | 55.37 | 60.79 | 66.44 | 71.3 | |
| L1 | max | 3 | 3 | 3 | 4 | 4 | 4 | 6 | 6 | 6 | 6 | 6 | 8 | |
| k | Habe anarana | 8.8 | 10 | 11.5 | 12.5 | 14 | 15 | 17 | 18.7 | 21 | 22.5 | 25 | 26 | |
| Grade A | max | 8.98 | 10.18 | 11.715 | 12.715 | 14.215 | 15.215 | - | - | - | - | - | - | |
| min | 8.62 | 9.82 | 11.285 | 12.285 | 13.785 | 14.785 | - | - | - | - | - | - | ||
| Grade B | max | 9.09 | 10.29 | 11.85 | 12.85 | 14.35 | 15.35 | 17.35 | 19.12 | 21.42 | 22.92 | 25.42 | 26.42 | |
| min | 8.51 | 9.71 | 11.15 | 12.15 | 13.65 | 14.65 | 16.65 | 18.28 | 20.58 | 22.08 | 24.58 | 25.58 | ||
| k1 | Grade A | min | 6.03 | 6.87 | 7.9 | 8.6 | 9.65 | 10.35 | - | - | - | - | - | - |
| Grade B | min | 5.96 | 6.8 | 7.81 | 8.51 | 9.56 | 10.26 | 11.66 | 12.8 | 14.41 | 15.46 | 17.21 | 17.91 | |
| r | min | 0.6 | 0.6 | 0.6 | 0.8 | 0.8 | 0.8 | 1 | 1 | 1 | 1 | 1 | 1.2 | |
| s | max=habe nominal | 21 | 24 | 27 | 30 | 34 | 36 | 41 | 46 | 50 | 55 | 60 | 65 | |
| Grade A | min | 20.67 | 23.67 | 26.67 | 29.67 | 33.38 | 35.38 | - | - | - | - | - | - | |
| Grade B | min | 20.16 | 23.16 | 26.16 | 29.16 | 33 | 35 | 40 | 45 | 49 | 53.8 | 58.8 | 63.1 | |
| Halavan'ny kofehy b | - | - | - | - | - | - | - | - | - | - |
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| Screw kofehy | (M45) | M48 | (M52) | M56 | (M60) | M64 |
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| P | dity | 4.5 | 5 | 5 | 5.5 | 5.5 | 6 |
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| b | L≤125 | - | - | - | - | - | - |
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| 125＜L≤200 | 102 | 108 | 116 | - | - | - |
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| L＞200 | 115 | 121 | 129 | 137 | 145 | 153 |
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| c | max | 1 | 1 | 1 | 1 | 1 | 1 |
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| min | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 |
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| da | max | 48.6 | 52.6 | 56.6 | 63 | 67 | 71 |
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| ds | max=habe nominal | 45 | 48 | 52 | 56 | 60 | 64 |
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| Grade A | min | - | - | - | - | - | - |
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| Grade B | min | 44.38 | 47.38 | 51.26 | 55.26 | 59.26 | 63.26 |
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| dw | Grade A | min | - | - | - | - | - | - |
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| Grade B | min | 64.7 | 69.45 | 74.2 | 78.66 | 83.41 | 88.16 |
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| e | Grade A | min | - | - | - | - | - | - |
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| Grade B | min | 76.95 | 82.6 | 88.25 | 93.56 | 99.21 | 104.86 |
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| L1 | max | 8 | 10 | 10 | 12 | 12 | 13 |
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| k | Habe anarana | 28 | 30 | 33 | 35 | 38 | 40 |
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| Grade A | max | - | - | - | - | - | - |
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| Grade B | max | 28.42 | 30.42 | 33.5 | 35.5 | 38.5 | 40.5 |
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| min | 27.58 | 29.58 | 32.5 | 34.5 | 37.5 | 39.5 |
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| k1 | Grade A | min | - | - | - | - | - | - |
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| Grade B | min | 19.31 | 20.71 | 22.75 | 24.15 | 26.25 | 27.65 |
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| r | min | 1.2 | 1.6 | 1.6 | 2 | 2 | 2 |
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| s | max=habe nominal | 70 | 75 | 80 | 85 | 90 | 95 |
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| Grade A | min | - | - | - | - | - | - |
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| Grade B | min | 68.1 | 73.1 | 78.1 | 82.8 | 87.8 | 92.8 |
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| Halavan'ny kofehy b | - | - | - | - | - | - |
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Toetra sy tombony
DIN 6921 dia karazana bolt flange hex izay matetika ampiasaina amin'ny fampiharana indostrialy sy fananganana.Ity bolt ity dia manana flange izay miasa toy ny mpanasa anatiny ary manampy amin'ny fizarana ny entana manerana ny faritra midadasika kokoa.Ny lohan'ny bolt dia miendrika hexagonal ary mora ny mihenjana amin'ny fampiasana fanerena na faladia.
Ity bolt ity dia ampiasaina betsaka amin'ny milina, indostrian'ny fiara, ary amin'ny fananganana, noho ny tanjaka sy ny faharetany miavaka.Izy io dia vita amin'ny fitaovana avo lenta toy ny vy tsy misy pentina, titane ary vy karbaona, izay manome fanoherana maharitra amin'ny fitafy, ny harafesina ary ny harafesina.
Ny bolt DIN 6921 dia amboarina amin'ny fandeferana henjana ary iharan'ny fepetra fanaraha-maso kalitao henjana mba hahazoana antoka fa mahafeno ny fenitra ambony indrindra amin'ny kalitao sy ny fampisehoana.Ireo bolts ireo dia misy amin'ny habeny, ny halavany ary ny famaranana mifanaraka amin'ny fampiharana sy ny fepetra samihafa.
Ankoatr'izay, ny bolt DIN 6921 dia manaraka ny fenitry ny indostria henjana, ao anatin'izany ny fenitry ny DIN (Deutsches Institut für Normung) sy ny ISO (International Organization for Standardization).Nosedraina ihany koa izy ireo noho ny hamafin'izy ireo, ny tanjaky ny tensile ary ny fahamarinan'ny refy alohan'ny hamoahana azy hamidy.Ireo lafin-javatra rehetra ireo dia mandray anjara amin'ny kalitao tsara sy azo itokisana amin'ny bolt DIN 6921.
Amin'ny ankapobeny, ny bolt DIN 6921 dia vahaolana famehezana maro sy matanjaka izay ampiasaina amin'ny indostria maro samihafa.Izy io dia natao hanomezana hery fitahirizana tsara, fanoherana ny tonta sy ny rovitra, ary ny fanamorana ny fametrahana.Ny fanorenana avo lenta sy ny fanarahana hentitra ny fenitry ny indostria dia mahatonga azy ho safidy tsara indrindra ho an'ny injeniera, mpamorona ary matihanina amin'ny fanorenana maneran-tany.
