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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 | ||||||||
4*0.7 | 7 | 4 | 3 | 6 | 8 | 10 | 12 | 16 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 55 | |||||||
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 | 10 | 12 | 16 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 55 | 60 | 65 | 70 | 75 | 80 | 90 | 100 | ||
10*1.5 | 16 | 10 | 8 | 12 | 16 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 55 | 60 | 65 | 70 | 75 | 80 | 90 | 100 | |||
12*1.75 | 18 | 12 | 10 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 55 | 60 | 65 | 70 | 75 | 80 | 90 | 100 | |||||
14*1.75 | 22 | 14 | 12 | 25 | 30 | 35 | 40 | 45 | 50 | 55 | 60 | 65 | 70 | 75 | 80 | 90 | 100 | ||||||
16*2.0 | 24 | 16 | 14 | 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" | ||||||||||
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" | |||||||
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" | |||
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" | 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" | 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" | 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" | 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" | 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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