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National standard expansion bolts
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norm Screw Length effective burial depth mounting hole Perforation depth Mounting torque Design Tension Ultimate Tension norm Screw length effective burial depth mounting hole Perforation depth Mounting torque Design Tension Ultimate Tension 6*60
60
43
10
50
0.99
5
12*80
80
46
16
58
40
15
35
6*80
80
63
10
70
4
0.99
12*90
90
56
16
68
40
15
38
6*100
100
83
10
90
4
0.99 5
12*100
100
66
16
78
40
15
38
6*120
120
103
10
110
0.99
5
12*110
110
76
16
88
40
15
38
6*150
150
130
10
135
0.99
5
12*120
20
86
16
98
40
15
38
8*60
60
36
12
44
8
2.3
9
12*150
50
116
16
128
40
15
38
8*70
70
46
12
54
8
2.3
9.5
14*100
100
65
18
77
50
18
45
8*80
80
56
12
64
8
2.3
9.5
14*120
120
85
18
97
50
18
45
8*100
100
76
12
84
8
2.3
9.8
14*150
150
115
18
127
50
18
45
8*120
120
96
12
104
8
2.3
9.9
14*200
200
165
18
177
50
18
45
8*150
150
126
12
134
8
2.3
9.8
16*100
100
50
20
71
60
25
60
8*200
200
176
12
184
8
2.3
9.9
16*120
120
78
20
91
60
25
60
10*60
60
32
14
42
25
7
25
16*150
150
108
20
121
60
25
60
10*70
70
42
14
52
25
7
25
16*180
180
138
20
151
60
25
60
10*80
80
51
14
61
25
7
28
16*200
200
160
20
173
60
25
60
10*90
90
61
14
71
25
7
28
18*150
150
110
22
124
80
29
80
10*100
100
71
14
81
25
28
18*180
180
140
22
154
80
29
80
10*110
110
81
14
91
25
7
28
18*200
200
160
22
174
80
29
80
10*120
120
91
14
101
25
7
28
20*150
150
98
25
112
110
35
100
10*150
150
120
14
131
25
7
28
20*180
180
130
25
144
110
35
100
10*200
200
170
14
181
25
7
28
20*200
200
150
25
164
110
35
100
12*70
70
36
16
48
40
15
35
20*250
250
200
25
214
110
35
100
Specification:
M6-M24; Material: Q235 plain carbon steel;Series Composition:
Generally, there are metal sleeves, screws, nuts, flat washers and spring washers, which can be processed and customised according to the user's needs;Surface Finishing:
Electroplated blue and white, hot-dip galvanised;Product Features:
Easy to install, large load, wide range of uses, can replace the foot wire pre-embedded parts, shorten the construction cycle;Scope of application:
Suitable for all kinds of steel structure, keel, air-conditioner, security doors, machinery and equipment, railings, brackets and other installation and reinforcement.Installation Diagram
National standard expansion bolts
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