UNI 7346 Standard Hammer drive screws with round head 的尺寸
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尺寸图和技术图
关键尺寸和技术参数
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Dimensions in mm - source UNI 7346 - WITHDRAWN |
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| Publication date: 11/1974 | ||||||
| d nominal thread size | D min/max | h min/max | d1 min/max |
s
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hole Ø hard materials | hole Ø soft materials |
| 1.5 | 2.28÷2.5 | 0.66÷0.87 | 1.18÷1.24 | 1.19 | 1.32 | 1.31 |
| 1.9 | 3÷3.22 | 1.05÷1.24 | 1.52÷1.6 | 1.19 | 1.75 | 1.7 |
| 2.5 | 3.7÷4.1 | 1.5÷1.75 | 2.03÷2.1 | 1.19 | 2.2 | 2.1 |
| 2.9 | 4.9÷5.35 | 1.9÷2.18 | 2.34÷2.43 | 1.19 | 2.7 | 2.6 |
| 3.5 | 6.06÷6.6 | 2.3÷2.6 | 2.84÷2.94 | 1.59 | 3.1 | 3 |
| 4.2 | 7.24÷7.84 | 2.7÷ 3.05 | 3.35÷3.45 | 1.98 | 3.7 | 3.6 |
| 4.5 | 8.49÷ 9.1 | 3.12÷3.47 | 3.71÷3.8 | 1.98 | 4.2 | 4 |
| 5.3 | 9.7÷10.35 | 3.53÷3.88 | 4.39÷4.5 | 3.18 | 4.9 | 4.7 |
| 6.1 | 10.9÷11.6 | 3.93÷4.3 | 5.02÷5.13 | 3.18 | 5.7 | 5.4 |
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Dimensions in Inches - source BS 4174 type U |
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| Publication date: 1972 | ||||||||
| d nominal thread size | Nr. of thread | d min/max | D min/max | h min/max | d1 min/max |
s nom
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drill Ø | hole Ø |
| No.00 | 6 | 0.057÷0.06 | 0.09÷0.099 | 0.026÷0.034 | 0.046÷0.049 | 0.02 | 55 | 0.052 |
| No.0 | 6 | 0.072÷0.075 | 0.116÷0.127 | 0.041÷0.049 | 0.06÷0.063 | 0.035 | 51 | 0.067 |
| No.2 | 8 | 0.097÷0.1 | 0.146÷0.162 | 0.059÷0.069 | 0.08÷0.083 | 0.045 | 44 | 0.086 |
| No.4 | 7 | 0.112÷0.116 | 0.193÷0.211 | 0.075÷0.086 | 0.092÷0.096 | 0.062 | 37 | 0.104 |
| No.6 | 7 | 0.136÷0.14 | 0.24÷0.26 | 0.091÷0.103 | 0.112÷0.116 | 0.078 | 31 | 0.12 |
| No.7 | 8 | 0.15÷0.154 | 0.264÷0.285 | 0.099÷0.111 | 0.122÷0.126 | 0.096 | 29 | 0.136 |
| No.8 | 8 | 0.162÷0.167 | 0.287÷0.309 | 0.107÷0.12 | 0.132÷0.136 | 0.125 | 27 | 0.144 |
| No.10 | 8 | 0.177÷0.182 | 0.334÷0.359 | 0.123÷0.137 | 0.146÷0.15 | 0.125 | 20 | 0.161 |
| No.12 | 8 | 0.206÷0.212 | 0.382÷0.408 | 0.139÷0.153 | 0.173÷0.177 | 0.142 | 11 | 0.191 |
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UNI 7346 - Approx. weights, in kg x1000 pcs, (ρ=7,85 kg/dm3) - commercial lengths |
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| d thread size | 1.5 | 1.9 | 2.5 | 2.9 | 3.5 | 4.2 | 4.5 | 5.3 | 6.1 | |||||
| nominal length l | ||||||||||||||
| 3.5 | 0.03 | 0.1 | 0.18 | |||||||||||
| 5 | 0.07 | 0.12 | 0.21 | 0.4 | ||||||||||
| 6.5 | 0.09 | 0.13 | 0.25 | 0.44 | 0.73 | |||||||||
| 8 | 0.16 | 0.3 | 0.49 | 0.79 | 1.08 | 1.66 | ||||||||
| 9.5 | 0.33 | 0.53 | 0.88 | 1.29 | 1.97 | |||||||||
| 13 | 0.68 | 1.08 | 1.76 | 2.65 | 2.7 | 3.44 | ||||||||
| 16 | 2.17 | 3.3 | 3.35 | 4.24 | ||||||||||
| 19 | 3.95 | 5.03 | ||||||||||||