Bolltau fflans DIN 6921 Dosbarth 8.8 a 10.9
Enw cynhyrchion | BOLT HEX DIN 931/ISO4014 hanner edau |
Safonol | DIN, ASTM / ANSI JIS EN ISO, AS, GB |
Gradd | Gradd Dur: 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, |
Gorffen | Sinc (Melyn, Gwyn, Glas, Du), Galfanedig Dip Hop (HDG), Ocsid Du, Geomet, Dacroment, anodization, platiau nicel, platiau sinc-nicel |
Proses Gynhyrchu | M2-M24: Ffrwgio Oer, Ffrwgio Poeth M24-M100, Peiriannu a CNC ar gyfer clymwr wedi'i addasu |
Cynhyrchion wedi'u Haddasu Amser Arweiniol | 30-60 diwrnod, |

Edau Sgriw | M1.6 | M2 | M2.5 | M3 | (M3.5) | M4 | M5 | M6 | (M7) | M8 | M10 | M12 | ||
P | Traw | 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 | uchafswm | 0.25 | 0.25 | 0.25 | 0.4 | 0.4 | 0.4 | 0.5 | 0.5 | 0.6 | 0.6 | 0.6 | 0.6 | |
munud | 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 | uchafswm | 2 | 2.6 | 3.1 | 3.6 | 4.1 | 4.7 | 5.7 | 6.8 | 7.8 | 9.2 | 11.2 | 13.7 | |
ds | maint enwol = uchafswm | 1.6 | 2 | 2.5 | 3 | 3.5 | 4 | 5 | 6 | 7 | 8 | 10 | 12 | |
Gradd A | munud | 1.46 | 1.86 | 2.36 | 2.86 | 3.32 | 3.82 | 4.82 | 5.82 | 6.78 | 7.78 | 9.78 | 11.73 | |
Gradd B | munud | 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 | Gradd A | munud | 2.54 | 3.34 | 4.34 | 4.84 | 5.34 | 6.2 | 7.2 | 8.88 | 9.63 | 11.63 | 14.63 | 16.63 |
Gradd B | munud | 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 | Gradd A | munud | 3.41 | 4.32 | 5.45 | 6.01 | 6.58 | 7.66 | 8.79 | 11.05 | 12.12 | 14.38 | 17.77 | 20.03 |
Gradd B | munud | 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 | uchafswm | 0.6 | 0.8 | 1 | 1 | 1 | 1.2 | 1.2 | 1.4 | 1.4 | 2 | 2 | 3 | |
k | Maint Enwol | 1.1 | 1.4 | 1.7 | 2 | 2.4 | 2.8 | 3.5 | 4 | 4.8 | 5.3 | 6.4 | 7.5 | |
Gradd A | uchafswm | 1.225 | 1.525 | 1.825 | 2.125 | 2.525 | 2.925 | 3.65 | 4.15 | 4.95 | 5.45 | 6.58 | 7.68 | |
munud | 0.975 | 1.275 | 1.575 | 1.875 | 2.275 | 2.675 | 3.35 | 3.85 | 4.65 | 5.15 | 6.22 | 7.32 | ||
Gradd B | uchafswm | 1.3 | 1.6 | 1.9 | 2.2 | 2.6 | 3 | 3.74 | 4.24 | 5.04 | 5.54 | 6.69 | 7.79 | |
munud | 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 | Gradd A | munud | 0.68 | 0.89 | 1.1 | 1.31 | 1.59 | 1.87 | 2.35 | 2.7 | 3.26 | 3.61 | 4.35 | 5.12 |
Gradd B | munud | 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 | munud | 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 | maint enwol = uchafswm | 3.2 | 4 | 5 | 5.5 | 6 | 7 | 8 | 10 | 11 | 13 | 16 | 18 | |
Gradd A | munud | 3.02 | 3.82 | 4.82 | 5.32 | 5.82 | 6.78 | 7.78 | 9.78 | 10.73 | 12.73 | 15.73 | 17.73 | |
Gradd B | munud | 2.9 | 3.7 | 4.7 | 5.2 | 5.7 | 6.64 | 7.64 | 9.64 | 10.57 | 12.57 | 15.57 | 17.57 | |
Hyd yr Edau b | - | - | - | - | - | - | - | - | - | - | - | - | ||
Edau Sgriw | (M14) | M16 | (M18) | M20 | (M22) | M24 | (M27) | M30 | (M33) | M36 | (M39) | M42 | ||
P | Traw | 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 | uchafswm | 0.6 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 1 | 1 | |
munud | 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 | uchafswm | 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 | maint enwol = uchafswm | 14 | 16 | 18 | 20 | 22 | 24 | 27 | 30 | 33 | 36 | 39 | 42 | |
Gradd A | munud | 13.73 | 15.73 | 17.73 | 19.67 | 21.67 | 23.67 | - | - | - | - | - | - | |
Gradd B | munud | 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 | Gradd A | munud | 19.64 | 22.49 | 25.34 | 28.19 | 31.71 | 33.61 | - | - | - | - | - | - |
Gradd B | munud | 19.15 | 22 | 24.85 | 27.7 | 31.35 | 33.25 | 38 | 42.75 | 46.55 | 51.11 | 55.86 | 59.95 | |
e | Gradd A | munud | 23.36 | 26.75 | 30.14 | 33.53 | 37.72 | 39.98 | - | - | - | - | - | - |
Gradd B | munud | 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 | uchafswm | 3 | 3 | 3 | 4 | 4 | 4 | 6 | 6 | 6 | 6 | 6 | 8 | |
k | Maint Enwol | 8.8 | 10 | 11.5 | 12.5 | 14 | 15 | 17 | 18.7 | 21 | 22.5 | 25 | 26 | |
Gradd A | uchafswm | 8.98 | 10.18 | 11.715 | 12.715 | 14.215 | 15.215 | - | - | - | - | - | - | |
munud | 8.62 | 9.82 | 11.285 | 12.285 | 13.785 | 14.785 | - | - | - | - | - | - | ||
Gradd B | uchafswm | 9.09 | 10.29 | 11.85 | 12.85 | 14.35 | 15.35 | 17.35 | 19.12 | 21.42 | 22.92 | 25.42 | 26.42 | |
munud | 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 | Gradd A | munud | 6.03 | 6.87 | 7.9 | 8.6 | 9.65 | 10.35 | - | - | - | - | - | - |
Gradd B | munud | 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 | munud | 0.6 | 0.6 | 0.6 | 0.8 | 0.8 | 0.8 | 1 | 1 | 1 | 1 | 1 | 1.2 | |
s | maint enwol = uchafswm | 21 | 24 | 27 | 30 | 34 | 36 | 41 | 46 | 50 | 55 | 60 | 65 | |
Gradd A | munud | 20.67 | 23.67 | 26.67 | 29.67 | 33.38 | 35.38 | - | - | - | - | - | - | |
Gradd B | munud | 20.16 | 23.16 | 26.16 | 29.16 | 33 | 35 | 40 | 45 | 49 | 53.8 | 58.8 | 63.1 | |
Hyd yr Edau b | - | - | - | - | - | - | - | - | - | - |
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Edau Sgriw | (M45) | M48 | (M52) | M56 | (M60) | M64 |
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P | Traw | 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 | uchafswm | 1 | 1 | 1 | 1 | 1 | 1 |
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munud | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 |
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da | uchafswm | 48.6 | 52.6 | 56.6 | 63 | 67 | 71 |
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ds | maint enwol = uchafswm | 45 | 48 | 52 | 56 | 60 | 64 |
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Gradd A | munud | - | - | - | - | - | - |
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Gradd B | munud | 44.38 | 47.38 | 51.26 | 55.26 | 59.26 | 63.26 |
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dw | Gradd A | munud | - | - | - | - | - | - |
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Gradd B | munud | 64.7 | 69.45 | 74.2 | 78.66 | 83.41 | 88.16 |
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e | Gradd A | munud | - | - | - | - | - | - |
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Gradd B | munud | 76.95 | 82.6 | 88.25 | 93.56 | 99.21 | 104.86 |
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L1 | uchafswm | 8 | 10 | 10 | 12 | 12 | 13 |
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k | Maint Enwol | 28 | 30 | 33 | 35 | 38 | 40 |
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Gradd A | uchafswm | - | - | - | - | - | - |
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munud | - | - | - | - | - | - |
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Gradd B | uchafswm | 28.42 | 30.42 | 33.5 | 35.5 | 38.5 | 40.5 |
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munud | 27.58 | 29.58 | 32.5 | 34.5 | 37.5 | 39.5 |
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k1 | Gradd A | munud | - | - | - | - | - | - |
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Gradd B | munud | 19.31 | 20.71 | 22.75 | 24.15 | 26.25 | 27.65 |
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r | munud | 1.2 | 1.6 | 1.6 | 2 | 2 | 2 |
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s | maint enwol = uchafswm | 70 | 75 | 80 | 85 | 90 | 95 |
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Gradd A | munud | - | - | - | - | - | - |
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Gradd B | munud | 68.1 | 73.1 | 78.1 | 82.8 | 87.8 | 92.8 |
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Hyd yr Edau b | - | - | - | - | - | - |
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Nodweddion a Manteision
Mae DIN 6921 yn fath o follt fflans hecsagonol a ddefnyddir yn gyffredin mewn cymwysiadau diwydiannol ac adeiladu. Mae gan y bollt hwn fflans sy'n gweithredu fel golchwr adeiledig ac yn helpu i ddosbarthu'r llwyth ar draws arwynebedd ehangach. Mae pen y bollt yn hecsagonol o ran siâp ac mae'n hawdd ei dynhau gan ddefnyddio wrench neu soced.
Defnyddir y bollt hwn yn helaeth mewn peiriannau, diwydiannau modurol, ac mewn adeiladu, oherwydd ei gryfder a'i wydnwch eithriadol. Fe'i gwneir o ddeunyddiau o ansawdd uchel fel dur di-staen, titaniwm, a dur carbon, sy'n darparu ymwrthedd hirdymor yn erbyn traul, cyrydiad, a rhwd.
Mae bolltau DIN 6921 yn cael eu cynhyrchu i oddefiannau tynn ac maent yn destun mesurau rheoli ansawdd llym i sicrhau eu bod yn bodloni'r safonau uchaf o ran ansawdd a pherfformiad. Mae'r bolltau hyn ar gael mewn amrywiaeth o feintiau, hydoedd a gorffeniadau i gyd-fynd â gwahanol gymwysiadau a gofynion.
Yn ogystal, mae bolltau DIN 6921 yn cadw at safonau diwydiant llym, gan gynnwys safonau DIN (Deutsches Institut für Normung) ac ISO (Sefydliad Safoni Rhyngwladol). Maent hefyd yn cael eu profi am eu caledwch, eu cryfder tynnol, a'u cywirdeb dimensiynol cyn cael eu rhyddhau i'w gwerthu. Mae'r holl ffactorau hyn yn cyfrannu at ansawdd gwych a pherfformiad dibynadwy'r bollt DIN 6921.
At ei gilydd, mae'r bollt DIN 6921 yn ateb clymu amlbwrpas a chadarn a ddefnyddir mewn llawer o ddiwydiannau gwahanol. Fe'i cynlluniwyd i ddarparu pŵer dal rhagorol, ymwrthedd i draul a rhwyg, a rhwyddineb gosod. Mae ei adeiladwaith o ansawdd uchel a'i gydymffurfiaeth gaeth â safonau'r diwydiant yn ei wneud yn ddewis gorau i beirianwyr, dylunwyr a gweithwyr proffesiynol adeiladu ledled y byd.