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  Triple Lock Nuts
  Conical Ring Lock Nut
  Safety Bearing Nut
  Safety Hexagon Nut
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  Conical Washer Nut
  Nylon Insert Conical Nut
  Hard-Lock Ring Lock Nut
  Metal Insert Conical Nut
 
 
SAFETY HEXAGON NUT
 
Prevailing torque nut with metal insert is designed in accordance with engineering basic principal. A spring ring is inserted onto a nut, so two pieces are to be formed an integral unit as a safety nut. When the unt is tighten on the bolt or screw, tensional force on the spring ring ensures the nut to be locked securely. Within the designed torque limit, this typical nut provides good mechanical feature and wear characteristics so that nut can be used repeatedly for a reasonable period. Under severe vibrated or thermal (-30℃ to 300℃ ) operation environment , the nut still maintains its good mechanical performance.
 
PREVAILING TORQUE HEXAGON NUT WITH METAL INSERT
ISO METRIC STANDARD
ANSI UNIFIED STANDARD
WHITWORTH STANDARD
DIMENSION
DIMENSION
DIMENSION
SIZE
A/F
B
HEIGHT
H
SIZE
SIZE
M-3
0.5
5.5
3.0
#10
3/8
0.156
W3/16

24

9
4
M-4
0.7
7
3.8
#12
7/16
0.191
0.353
W1/4
20
10
5.3
8.5
M-5
0.8
8
4.6
8.8
1/4
7/16
0.254
0.193
0.447
W5/16
18
14
7.3
5
13
M-6
1.0
10
5.3
4.3
10.2
5/16
1/2
0.305
0.227
0.530
W3/8
16
17
8.3
6.5
15
M-8
1.25/1.0
13
7.3
5.0
13.0
3/8
9/16
0.371
0.262
0.639
W7/16
14
19
10
7.5
M-10
1.5/1.25
17
8.3
6.5
15.0
7/16
11/16
0.422
0.297
0.769
W1/2
12
21
10.5
8.5
19
M-12
1.75/1.25
19
10.5
8.5
19.0
1/2
3/4
0.497
0.372
0.832
W5/8
11
26
14.5
11
25
M-14
2.0/1.5
22
12.5
9.5
24.0
9/16
7/8
0.551
0.380
1.004
W3/4
10
32
16
13.5
31
M-16
2.0/1.5
24
14.5
25.0
5/8
15/16
0.614
0.446
1.027
W7/8
9
35
18
15.5
34
M-18
2.5/1.5
27
16.0
28.0
3/4
1-1/8
0.719
0.501
1.192
W1
8
41
22
17
41
M-20
2.5/1.5
30
17.5
31.0
7/8
1-5/16
0.841
0.575
1.411
W1-1/8
7
46
24
19
M-22
2.5/1.5
32
19.5
34.0
1
1-1/2
0.950
0.645
1.717
W1-1/4
7
50
28
21.5
M-24
3.0/2.0
36
21.5
41.0
1-1/8
1-11/16
1.087
0.727
W1-3/8
6
54
31
M-27
3.0/2.0
41
24.0
1-1/4
1-7/8
1.181
0.845
W1-1/2
6
58
34
M-30
3.5/3.0
46
27.0
1-3/8
2-1/16
1.310
0.919
W1-3/4
5
67
40
M-33
3.5/3.0
50
29.5
1-1/2
2-1/4
1.439
1.001
W2
4.5
77
45
M-36
4.0/3.0
55
32.5
M-39
4.5/3.0
60
35.0
M-42
4.5/3.0
65
38.0
M-45
4.5/3.0
70
40.0
 
 
FORTUNE BRIGHT INDUTRIAL CO., LTD.   Tel: +886-3-480-3436   Fax: +886-3-480-3438  Emai l: fb888@ms14.hinet.net
No.7, Aly.175,Ln.129. Jiulong Sec., Zhongxing Rd., Longtan Dist., TaoyuanCity 325, Taiwan