1. 目的:为完善作业标准,制订本文件。 2. 范围:适用于本公司各生产部门之作业。 3. 职责:各相关部门根据本文件要求,遵循并执行之。 4. 内容
4.1 公制螺丝规格表: M*P | A | E | B | L | 3*0.5 | 5.5 | 3 | 2.5 | 6 | 8 | 10 | 12 | 16 | 20 | 25 | 30 | 35 | 40 | 45 | 50 |
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| 4*0.7 | 7 | 4 | 3 | 6 | 8 | 10 | 12 | 16 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 55 |
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| 5*0.8 | 8.5 | 5 | 4 | 6 | 8 | 10 | 12 | 16 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 55 | 60 | 65 | 70 | 75 | 80 | 90 | 100 | 6*1.0 | 10 | 6 | 5 |
| 8 | 10 | 12 | 16 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 55 | 60 | 65 | 70 | 75 | 80 | 90 | 100 | 8*1.25 | 13 | 8 | 6 |
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| 10 | 12 | 16 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 55 | 60 | 65 | 70 | 75 | 80 | 90 | 100 | 10*1.5 | 16 | 10 | 8 |
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| 12 | 16 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 55 | 60 | 65 | 70 | 75 | 80 | 90 | 100 | 12*1.75 | 18 | 12 | 10 |
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| 20 | 25 | 30 | 35 | 40 | 45 | 50 | 55 | 60 | 65 | 70 | 75 | 80 | 90 | 100 | 14*1.75 | 22 | 14 | 12 |
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| 25 | 30 | 35 | 40 | 45 | 50 | 55 | 60 | 65 | 70 | 75 | 80 | 90 | 100 | 16*2.0 | 24 | 16 | 14 |
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| 25 | 30 | 35 | 40 | 45 | 50 | 55 | 60 | 65 | 70 | 75 | 80 | 90 | 100 |
4.2 英制螺丝规格表: D | A | E | B | L | 1/8' | 7/32' | 1/8' | 3/32' | 1/4' | 3/8' | 1/2' | 5/8' | 3/4' | 1' | 1 -1/4' |
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| 5/32' | 1/4' | 5/32' | 1/8' | 1/4' | 3/8' | 1/2' | 5/8' | 3/4' | 1' | 1 -1/4' | 1- 1/2' | 1 -3/4' | 2' |
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| 3/16' | 5/16' | 3/16' | 5/32' | 1/4' | 3/8' | 1/2' | 5/8' | 3/4' | 1' | 1- 1/4' | 1 -1/2' | 1- 3/4' | 2' | 2 -1/4' | 2 -1/2' | 2- 3/4' | 3' |
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| 1/4' | 3/8' | 1/4' | 3/16' |
| 3/8' | 1/2' | 5/8' | 3/4' | 1' | 1-1/4' | 1- 1/2' | 1- 3/4' | 2' | 2 -1/4' | 2 -1/2' | 2 -3/4' | 3' | 3- 1/4' | 3- 1/2' | 4' | 5/16' | 7/16' | 5/16' | 1/4' |
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| 1/2' | 5/8' | 3/4' | 1' | 1- 1/4' | 1 -1/2' | 1- 3/4' | 2' | 2 -1/4' | 2- 1/2' | 2- 3/4' | 3' | 3 -1/4' | 3- 1/2' | 4' | 3/8' | 9/16' | 3/8' | 5/16' |
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| 5/8' | 3/4' | 1' | 1 -1/4' | 1- 1/2' | 1- 3/4' | 2' | 2- 1/4' | 2- 1/2' | 2- 3/4' | 3' | 3- 1/4' | 3- 1/2' | 4' | 1/2' | 3/4 | 1/2' | 3/8' |
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| 1' | 1 -1/4' | 1- 1/2' | 1- 3/4' | 2' | 2 -1/4' | 2 -1/2' | 2- 3/4' | 3' | 3- 1/4' | 3- 1/2' | 4' | 5/8' | 7/8' | 5/8' | 1/2' |
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| 1 -1/4' | 1 -1/2' | 1- 3/4' | 2' | 2 -1/4' | 2 -1/2' | 2- 3/4' | 3' | 3- 1/4' | 3 -1/2' | 4' | 3/4' | 1' | 3/4' | 5/8' |
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| 1 -1/2' | 1- 3/4' | 2' | 2- 1/4' | 2- 1/2' | 2- 3/4' | 3' | 3- 1/4' | 3- 1/2' | 4' |
4.3 螺丝公、英制的选用:若无特别要求,一般选用公制螺丝。 4.4 螺丝大小的选用: 4.4.1 固定模板:一般用M8(W5/16″)、M10(W3/8″),特殊情况可选用M6(W1/4″)、M12(W1/2″); 4.4.2 固定冲头:一般用M8(W5/16″)或M6(W1/4″),特殊情况下可选用M4(W5/32″)。 4.5 螺丝的间距: 4.5.1 模板中: A:M6螺丝间距:一般取80-100; B:M8螺丝间距:一般取100-120; C:M10螺丝间距:一般取100-150; D:M12螺丝间距:一般取120-180。 4.5.2镶件、冲头上:螺丝间距根据实际情况定。 4.6 螺丝长度的选用::锁进模板的牙长度一般为螺丝直径D的2-3倍,但定购长度必须为上表所列长度规格。 4.7 螺丝订购代号:“D-L 数量”, 如“M8*40 10”或“W5/16″*1-1/2 10”。
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