Permpoon Fastening and Motor (2004) C0., Ltd.
Head Marking |
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Meaning of the word
The PFM mark : TheGuarantee of the high quality product and service mild
8.8 : This mark indicates that bolt are grade 8.8 steel and replace
previous mark 8G used on metric bolts to JIS standards |
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Meaning of the word
The PFM mark : TheGuarantee of the high quality product and service mild
A307-B : This mark indicates that bolts are standard steel used on metric
bolts to JIS standards |
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Meaning of the word
The PFM mark : TheGuarantee of the high quality product and service mild
SS 304 : This mark indicates that bolts are standard steel used on metric
bolts to JIS standards |
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Meaning of the word
The PFM mark : TheGuarantee of the high quality product and service mild
SS 316 : This mark indicates that bolts are standard steel used on metric
bolts to JIS standards |
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Meaning of the word
The PFM mark : TheGuarantee of the high quality product and service mild
T-0 : This mark indicates that bolts are standard A325 type 0 |
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Dimention for standard bolt and nut [mm.] |
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Size [mm.]
[D] |
M-Thread |
Nut |
Bolt |
Pitch
Normal |
Pitch
Special |
N-mm. |
H-mm. |
N-mm. |
H-mm. |
M.4 |
0.7 |
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7 |
3.2 |
7 |
2.8 |
M.5 |
0.8 |
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8 |
4 |
8 |
3.5 |
M.6 |
1.0 |
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10 |
5 |
10 |
4 |
M.8 |
1.25 |
1.0 |
13 |
6.5 |
13 |
5.5 |
M.10 |
1.5 |
1.25 |
17 |
8 |
17 |
7 |
M.12 |
1.75 |
1.5 |
18 |
10 |
19 |
8 |
M.14 |
2.0 |
1.5 |
22 |
11 |
22 |
9 |
M.16 |
2.0 |
1.5 |
24 |
13 |
24 |
10 |
M.18 |
2.5 |
1.5 |
27 |
15 |
27 |
12 |
M.20 |
2.5 |
1.5 |
30 |
16 |
30 |
13 |
M.22 |
2.5 |
1.5 |
32 |
18 |
32 |
14 |
M.24 |
3.0 |
2.0 |
36 |
19 |
36 |
15 |
M.27 |
3.0 |
2.0 |
41 |
22 |
41 |
17 |
M.30 |
3.5 |
2.0 |
46 |
24 |
46 |
19 |
M.33 |
3.5 |
2.0 |
50 |
26 |
50 |
21 |
M.36 |
4.0 |
3.0 |
55 |
29 |
55 |
23 |
M.39 |
4.0 |
3.0 |
60 |
31 |
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Dimention for standard bolt and nut [Inch] |
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Size [Inch]
[D] |
Thread
per Inch |
Nut |
Bolt |
H [mm.] |
B [mm.] |
A [mm.] |
E [mm.] |
B [mm.] |
A [mm.] |
1/4" |
20 |
4.5-5.0 |
9.8-10.5 |
11.0-11.5 |
4.0-4.5 |
10.5-10.88 |
12.0-12.5 |
5/16" |
18 |
5.5-6.0 |
12.3-12.7 |
14.0-14.5 |
4.5-5.5 |
13.5-14.0 |
15.0-15.5 |
3/8" |
16 |
7.5-8.0 |
16.75-17.25 |
19.0-19.5 |
5.5-6.0 |
16.5-17.0 |
19.0-19.5 |
7/16" |
14 |
9.0-9.5 |
18.0-19.5 |
21.0-21.5 |
7.5-8.5 |
18.5-19.5 |
21.0-21.5 |
1/2" |
12 |
9.5-10.0 |
20.6-21.2 |
23.5-24.5 |
8.5-9.0 |
18.5-19.0 |
23.5-24.5 |
5/8" |
11 |
13.5-14.5 |
25.0-25.6 |
28.0-28.5 |
10.2-11.0 |
23.5-24.0 |
27.5-28.5 |
3/4" |
10 |
17.5-18.5 |
31.2-31.8 |
35.8-36.0 |
12.5-13.0 |
30.8-31.8 |
35.0-35.5 |
7/8" |
9 |
19.5-20.5 |
34.2-34.8 |
39.2-40.0 |
16.5-17.5 |
34.0-35.5 |
39.0-39.5 |
1" |
8 |
22.5-23.5 |
40.5-41.3 |
46.0-47.5 |
16.9-17.9 |
37.0-37.8 |
42.0-42.5 |
1-1/8" |
7 |
27.5-28.5 |
43.0-44.5 |
49.0-50.0 |
20.5-21.5 |
43.5-44.5 |
50.2-51.0 |
1-1/4" |
7 |
30.5-31.5 |
49.5-50.5 |
56.0-57.0 |
21.5-22.5 |
49.5-50.0 |
56.0-57.0 |
1-3/8" |
6 |
34.5-35.5 |
51.5-52.5 |
60.0-61.0 |
26.5-27.5 |
51.5-52.5 |
60.0-61.0 |
1-1/2" |
6 |
36.5-38.5 |
54.5-55.5 |
69.0-70.0 |
26.5-27.5 |
54.4-55.5 |
69.0-70.0 |
1-3/4" |
5 |
44.5-45.5 |
69.5-70.5 |
80.0-81.0 |
29.5-30.5 |
69.5-70.5 |
80.0-81.0 |
2" |
4.5 |
49.5-51.5 |
74.5-75.5 |
85.0-86.0 |
45.5-36.5 |
74.5-75.5 |
85.0-86.0 |
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