| |
3 尺寸
尺寸按下圖及表1～3所示。
表l mm
|
螺紋規格d |
M12 |
M16 |
M20 |
(M22) |
M24 |
(M27) |
M30 |
|
P |
1.75 |
2 |
2.5 |
2.5 |
3 |
3 |
3.5 |
|
C |
max |
O．8 |
0,8 |
0.8 |
0.8 |
O．8 |
0.8 |
O．8 |
|
min |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 |
|
da |
max |
15.23 |
19.23 |
24.32 |
26.32 |
28.32 |
32.84 |
35.84 |
|
ds |
max |
12.43 |
16.43 |
20.52 |
22.52 |
24.52 |
27.84 |
30.84 |
|
min |
11.57 |
15.57 |
19.48 |
21.48 |
23.48 |
26.16 |
29.16 |
|
dw |
min |
19.2 |
24.9 |
31.4 |
33.3 |
38．O |
42.8 |
46.5 |
|
e |
min |
22.78 |
29.56 |
37.29 |
39.55 |
45.20 |
50.85 |
55.37 |
|
K |
公稱 |
7.5 |
10 |
12.5 |
14 |
15 |
17 |
18.7 |
|
max |
7.95 |
10.75 |
13.40 |
14.90 |
15.90 |
17.90 |
19.75 |
|
min |
7.05 |
9.25 |
11.60 |
13.10 |
14.10 |
16.10 |
17.65 |
|
K′ |
min |
4.9 |
6.5 |
8.1 |
9.2 |
9.9 |
11.3 |
12,4 |
|
r |
min |
1.0 |
1.0 |
1.5 |
1.5 |
1.5 |
2．O |
2.0 |
|
S |
max |
2l |
27 |
34 |
36 |
4l |
46 |
50 |
|
min |
20.16 |
26.16 |
33 |
35 |
40 |
45 |
49 |
注： 括號內的規格為第二選擇系列。
表2 mm
|
l |
無螺紋桿部長度ls和夾緊長度lg |
|
螺紋規格 d |
|
M12 |
M16 |
M20 |
(M22) |
M24 |
(M27) |
M30 |
|
公稱 |
min |
max |
ls
min |
lg
max |
ls
min |
lg
max |
ls
min |
lg
max |
ls
min |
lg
max |
ls
min |
lg
max |
ls
min |
lg
max |
ls
min |
lg
max |
|
35 |
33.75 |
36.25 |
4.8 |
10 |
|
|
|
|
|
|
|
|
|
|
|
|
|
40 |
38.75 |
41.25 |
9.8 |
15 |
|
|
|
|
|
|
|
|
|
|
|
|
|
45 |
43.75 |
46.25 |
9.8 |
15 |
9 |
15 |
|
|
|
|
|
|
|
|
|
|
|
50 |
48.75 |
51.25 |
14.8 |
20 |
14 |
20 |
7.5 |
15 |
|
|
|
|
|
|
|
|
|
55 |
53.5 |
56.5 |
19.8 |
25 |
14 |
20 |
12.5 |
20 |
7.5 |
15 |
|
|
|
|
|
|
|
60 |
58.5 |
61.5 |
24.8 |
30 |
19 |
25 |
7.5 |
25 |
2.5 |
20 |
6 |
15 |
|
|
|
|
|
65 |
63.5 |
66.5 |
29.8 |
35 |
24 |
30 |
17.5 |
25 |
17.5 |
25 |
11 |
20 |
6 |
15 |
|
|
|
70 |
68.5 |
71.5 |
34.8 |
40 |
29 |
35 |
22.5 |
30 |
17.5 |
25 |
16 |
25 |
1l |
20 |
4.5 |
15 |
|
75 |
73.5 |
76.5 |
39.8 |
45 |
34 |
40 |
27.5 |
35 |
22.5 |
30 |
16 |
25 |
16 |
25 |
9.5 |
20 |
|
80 |
78.5 |
81.5 |
|
|
39 |
45 |
32.5 |
40 |
27.5 |
35 |
21 |
30 |
16 |
25 |
14.5 |
25 |
|
85 |
83.25 |
86.75 |
|
|
44 |
50 |
37.5 |
45 |
32.5 |
40 |
26 |
35 |
21 |
30 |
14.5 |
25 |
|
90 |
88.25 |
91.75 |
|
|
49 |
55 |
42.5 |
50 |
37.5 |
45 |
3l |
40 |
26 |
35 |
19.5 |
30 |
|
95 |
93.25 |
96.75 |
|
|
54 |
60 |
47.5 |
55 |
42.5 |
50 |
36 |
45 |
3l |
40 |
24.5 |
35 |
|
100 |
98.25 |
101.75 |
|
|
59 |
65 |
52.5 |
60 |
47.5 |
55 |
4l |
50 |
36 |
45 |
29.5 |
40 |
|
1lO |
108.25 |
111.75 |
|
|
69 |
75 |
62.5 |
70 |
57.5 |
65 |
51 |
60 |
46 |
55 |
39.5 |
50 |
|
120 |
118.25 |
121.75 |
|
|
79 |
85 |
72.5 |
80 |
67.5 |
75 |
61 |
70 |
56 |
65 |
49.5 |
60 |
|
130 |
128 |
132 |
|
|
89 |
95 |
82.5 |
90 |
77.5 |
85 |
71 |
80 |
66 |
75 |
59.5 |
70 |
|
140 |
138 |
142 |
|
|
|
|
92.5 |
100 |
87.5 |
95 |
8l |
90 |
76 |
85 |
69.5 |
80 |
|
150 |
148 |
152 |
|
|
|
|
102 5 |
110 |
97.5 |
105 |
91 |
100 |
86 |
95 |
79.5 |
90 |
|
160 |
156 |
164 |
|
|
|
|
112.5 |
120 |
107.5 |
115 |
101 |
110 |
96 |
105 |
89.5 |
100 |
|
170 |
166 |
174 |
|
|
|
|
|
|
117.5 |
125 |
111 |
120 |
106 |
115 |
99,5 |
110 |
|
180 |
176 |
184 |
|
|
|
|
|
|
127.5 |
135 |
12l |
130 |
116 |
125 |
109.5 |
120 |
|
190 |
185.4 |
194.6 |
|
|
|
|
|
|
137.5 |
145 |
13l |
140 |
126 |
135 |
119.5 |
130 |
|
200 |
195.4 |
204.6 |
|
|
|
|
|
|
147.5 |
155 |
141 |
150 |
136 |
145 |
129.5 |
140 |
|
220 |
215.4 |
224.6 |
|
|
|
|
|
|
167.5 |
175 |
16l |
170 |
156 |
165 |
149.5 |
160 |
|
240 |
235.4 |
244.6 |
|
|
|
|
|
|
|
|
18l |
190 |
179 |
185 |
169.5 |
180 |
|
260 |
254.8 |
265.2 |
|
|
|
|
|
|
|
|
|
|
196 |
205 |
189.5 |
200 |
注： ① 括號內的規格為第二選擇系列。
② lg max =l公稱 -(b)參考 ； ls min = lg max -3P 。
表3 mm
|
l |
螺紋規格 d |
螺紋規格 d |
|
M12 |
M16 |
M20 |
(M22) |
M24 |
(M27) |
M30 |
M12 |
M16 |
M20 |
(M22) |
M24 |
(M27) |
M30 |
|
公稱 |
(b) |
每1 000個鋼螺栓的理論質量kg |
|
35 |
25 |
|
|
|
|
|
|
49.4 |
|
|
|
|
|
|
|
40 |
54.2 |
|
|
|
|
|
|
|
45 |
30 |
30 |
57.8 |
113．O |
|
|
|
|
|
|
50 |
35 |
62.5 |
121.3 |
207.3 |
|
|
|
|
|
55 |
35 |
40 |
67.3 |
127.9 |
220.3 |
269.3 |
|
|
|
|
60 |
45 |
72.1 |
36.2 |
33.3 |
84.9 |
357.2 |
|
|
|
65 |
40 |
50 |
76.8 |
144.5 |
243.6 |
300.5 |
375.7 |
503.2 |
|
|
70 |
45 |
55 |
81.6 |
152.8 |
256.5 |
313.2 |
394.2 |
527.1 |
658.2 |
|
75 |
50 |
86.3 |
161.2 |
269.5 |
328.9 |
409.1 |
551.0 |
607.5 |
|
80 |
|
55 |
|
169.5 |
282.5 |
344.5 |
428.6 |
570.2 |
716.8 |
|
85 |
60 |
|
177.8 |
295.5 |
360.1 |
446.1 |
594.1 |
740.3 |
|
90 |
|
186.4 |
308.5 |
375.8 |
464.7 |
617.9 |
769.6 |
|
95 |
|
194.4 |
321.4 |
391.4 |
483.2 |
641.8 |
799.0 |
|
100 |
|
202.8 |
334.4 |
407.0 |
501.7 |
665.7 |
828.3 |
|
110 |
|
219.4 |
360.4 |
438.3 |
538.8 |
713.5 |
886.9 |
|
120 |
|
236.1 |
386.3 |
469.6 |
575.9 |
761.3 |
945.6 |
|
130 |
|
252.7 |
412.3 |
500.8 |
612.9 |
809.1 |
1004.2 |
|
140 |
|
|
|
438.3 |
532.1 |
650.0 |
856.9 |
1062.8 |
|
150 |
|
|
464.2 |
563.4 |
687.1 |
904.7 |
1121.5 |
|
160 |
|
|
490.2 |
594.6 |
724.2 |
952.4 |
1180.1 |
|
170 |
|
|
|
|
625.9 |
761.2 |
1000.2 |
1238.7 |
|
180 |
|
|
|
657.2 |
798.3 |
1048．O |
1297.4 |
|
190 |
|
|
|
688.4 |
835.4 |
1095.8 |
1356．O |
|
200 |
|
|
|
719.7 |
872.4 |
1143.6 |
1414.7 |
|
220 |
|
|
|
782.2 |
946.6 |
1239.2 |
1531.9 |
|
240 |
|
|
|
|
|
1020.7 |
1334.7 |
1649.2 |
|
260 |
|
|
|
|
|
|
1430.3 |
1766.5 |
注： 括號內的規格為第二選擇系列。
|
|
