High Strength Structural Bolts
PF High Strength Bolts for Structural Steel Joints with Nuts & Washers to Comply with ASTMA-325M/A490M for Bolts, A563M for Nuts & F436M for Washers Grade 8S/10S.
Table 1 : P.F. ASTM A325M High Strength Structural Bolts Dimensions
Thread Size |
M16 |
M20 |
(M22) |
M24 |
(M27) |
M30 |
M36 |
|
Pitch |
2.0 |
2.50 |
2.50 |
3.00 |
3.00 |
3.50 |
4.00 |
|
B |
Max. |
16.70 |
20.84 |
22.84 |
24.84 |
27.84 |
30.84 |
37.00 |
Min. |
15.30 |
19.16 |
21.16 |
23.16 |
26.16 |
29.16 |
35.00 |
|
da |
Max. |
18.70 |
23.24 |
25.24 |
27.64 |
30.40 |
33.40 |
39.40 |
W |
Max. |
27.00 |
34.00 |
36.00 |
41.00 |
46.00 |
50.00 |
60.00 |
Min. |
26.16 |
33.00 |
35.00 |
40.00 |
45.00 |
49.00 |
58.80 |
|
C |
Min. |
29.56 |
37.29 |
39.25 |
45.20 |
50.85 |
55.37 |
66.44 |
H |
Max. |
10.75 |
13.40 |
14.90 |
15.90 |
17.90 |
19.75 |
23.55 |
Min. |
9.25 |
11.60 |
13.10 |
14.10 |
16.10 |
17.65 |
21.45 |
|
R |
Min. |
0.60 |
0.80 |
0.80 |
1.00 |
1.20 |
1.20 |
1.50 |
T |
T1 Ref. |
31 |
36 |
38 |
41 |
44 |
49 |
56 |
T2 Ref. |
38 |
43 |
45 |
48 |
51 |
56 |
63 |
Table 2 : P.F. ASTM A563M High Strength Structural Nuts-Dimensions
Thread Size |
M16 |
M20 |
(M22) |
M24 |
(M27) |
M30 |
M36 |
|
|
Pitch |
2.0 |
2.50 |
2.50 |
3.00 |
3.00 |
3.50 |
4.00 |
W |
Max. |
27.00 |
34.00 |
36.00 |
41.00 |
46.00 |
50.00 |
60.00 |
Min. |
26.16 |
33.00 |
35.00 |
40.00 |
45.00 |
49.00 |
58.80 |
|
C |
Min. |
29.56 |
37.29 |
39.55 |
45.20 |
50.85 |
55.37 |
66.44 |
H |
Max. |
17.10 |
20.70 |
23.60 |
24.20 |
27.60 |
30.70 |
26.60 |
Min. |
16.40 |
19.40 |
22.30 |
22.60 |
26.30 |
29.10 |
35.00 |
|
Weight Kg./- 1000 Pcs. |
60.4 |
115.3 |
142.8 |
197.7 |
282.30 |
365.0 |
281.8 |
Bolt Size |
M16 |
M20 |
(M22) |
M24 |
(M27) |
M30 |
M36 |
|
d |
Min. |
18.00 |
22.00 |
24.00 |
26.00 |
30.00 |
33.00 |
39.00 |
Max. |
18.40 |
22.50 |
24.50 |
26.50 |
30.50 |
33.60 |
39.60 |
|
D |
Max. |
34.00 |
42.00 |
44.00 |
50.00 |
56.00 |
60.00 |
72.00 |
Min. |
32.40 |
40.40 |
42.40 |
48.40 |
54.10 |
58.10 |
70.10 |
|
H |
Max. |
4.60 |
4.60 |
4.60 |
4.60 |
4.60 |
4.60 |
4.60 |
Min. |
3.10 |
3.10 |
3.40 |
3.40 |
3.40 |
3.40 |
3.40 |
|
Weight Kg./- 1000 Pcs. |
20.3 |
31.3 |
33.2 |
44.7 |
54.8 |
61.4 |
89.7 |
Table 4 : Mechanical Properties of H.S.S. Bolts
Thread Size |
Stress Area |
Property Class 8.8 |
Property Class 10.9 |
||||
Ultimate Load (Min) |
Proof Load (Min) |
Hardness |
Ultimate Load (Min) |
Proof Load (Min) |
Hardness |
||
|
Mm2 |
Newtons |
Newtons |
HRC |
Newtons |
Newtons |
HRC |
M16 |
157 |
125600 |
91060 |
22 - 32 |
163280 |
130310 |
33 - 39 |
M20 |
245 |
203350 |
147000 |
23 - 34 |
254800 |
203350 |
|
M(22) |
303 |
251490 |
181800 |
315120 |
251490 |
||
M24 |
353 |
292990 |
211800 |
367120 |
262990 |
||
(M27) |
459 |
380970 |
275400 |
477360 |
380970 |
||
M30 |
561 |
465630 |
336600 |
583440 |
465630 |
||
M36 |
817 |
678110 |
490200 |
849680 |
678110 |
Thread Size |
Property Class 8 |
Property Class 10 |
||
Proof Load Newtons |
Hardness |
Proof Load Newtons |
Hardness |
|
M16 |
168900 |
HRB 89 to HRC 30 |
195500 |
HRC 26 to HRC 36 |
M20 |
263400 |
305000 |
||
M(22) |
325700 |
377200 |
||
M24 |
379500 |
439500 |
||
(M27) |
493400 |
571500 |
||
M30 |
603100 |
698400 |
||
M36 |
878300 |
1017200 |
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