螺母
螺母經常與大小相合的螺絲共用,以固定有關的接合部份。如果震動等環境因素會令螺母鬆脫,可使用膠水或別針等工具進一步為有關部份加固。
螺母又稱為螺帽(英語:),是一種固定用工具,其中心有孔,孔的內側有旋紋。
螺母多呈六角形,其次為正方形。
標準公制六角螺母尺寸
以下單位皆為mm
規格 D |
牙距 P |
對邊 A/F |
最大外徑 A/C |
高度 H | |||
---|---|---|---|---|---|---|---|
常用 | 不常用 | 六角螺母 | 防鬆螺母 | 尼龍螺母 | |||
1 | 0.25 | ||||||
1.2 | 0.25 | ||||||
1.4 | 0.3 | ||||||
1.6 | 0.35 | ||||||
1.8 | 0.35 | ||||||
2 | 0.4 | 4 | 1.6 | 1.2 | - | ||
2.5 | 0.45 | 5 | 2 | 1.6 | - | ||
3 | 0.5 | 5.5 | 6.4 | 2.4 | 1.8 | 4 | |
3.5 | 0.6 | ||||||
4 | 0.7 | 7 | 8.1 | 3.2 | 2.2 | 5 | |
5 | 0.8 | 8 | 9.2 | 4 | 2.7 | 5 | |
6 | 1 | 10 | 11.5 | 5 | 3.2 | 6 | |
7 | 1 | 11 | 5.5 | 3.5 | - | ||
8 | 1.25 | 13 | 15 | 6.5 | 4 | 8 | |
10 | 1.5 | 17 | 19.6 | 8 | 5 | 10 | |
12 | 1.75 | 19 | 22.1 | 10 | 6 | 12 | |
14 | 2 | 22 | 11 | 7 | 14 | ||
16 | 2 | 24 | 27.7 | 13 | 8 | 16 | |
18 | 2.5 | 27 | 15 | 9 | 18.5 | ||
20 | 2.5 | 30 | 34.6 | 16 | 10 | 20 | |
22 | 2.5 | ||||||
24 | 3 | 36 | 41.6 | 19 | |||
27 | 3 | ||||||
30 | 3.5 | 46 | 53.1 | 24 | |||
33 | 3.5 | ||||||
36 | 4 | 55 | 63.5 | 29 | |||
39 | 4 | ||||||
42 | 4.5 | ||||||
45 | 4.5 | ||||||
48 | 5 | ||||||
52 | 5 | ||||||
56 | 5.5 | ||||||
60 | 5.5 | ||||||
64 | 6 |
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