Grade 12.9 Bolt Manufacturers
Grade 12.9 Bolt can come in quenched and tempered condition. The material is a high tensile material and there are different types of bolts in this grade of material. The hex socket head cap bolt, hex screws, socket cap screws and others are used in specific application circumstances. The Grade 12.9 Hex Bolts are used in high strength applications for the ease of installation with tools.
Grade 12.9 Bolt
High tensile Grade 12.9 Hex Bolts
12.9 Grade Threaded Rod
The applications that require high torque forces to drive the bolts use the Grade 12.9 Hex Head Bolts. The grade is DIN 933 and there are ASTM F568 and ASME SF568 standards that govern the dimensions of these bolts. The diameter of the bolts can range from 1.6mm to 100mm or from ¾ inches to 3 ½ inches. The High Tensile 12.9 Metric Hex Bolts are measured in metric scale. There are different coating types available for the fasteners as well. The plain, zinc plated and hot dip galvanized finishes are the most commonly used types. The 12.9 Grade Threaded Rod is a special type that has no head but a rod with thread. This type of fastener is useful in narrow spaces and in connecting components both ways. The thread types vary as coarse and fine threads as well. The High Tensile Grade 12.9 Fasteners have up to 1200MPa minimum tensile strength, 1100MPa minimum yield strength and up to 970MPa minimum proof load strength. The applications include machineries, tools, equipment and parts in petroleum, oil and gas, construction and in general engineering and structural applications.
Table of Content
Grade 12.9 Fasteners Grades |
DIN 933 Grade 12.9 |
Grade 12.9 Fasteners Standard |
ASTM F568, ASME SF568 |
Grade 12.9 Fasteners Size |
Dia 1.6mm to 100 mm Inch 3/4" to 3.1/2" |
Grade 12.9 Fasteners finish |
Zinc plated / Plain / Hot dip galvanised |
Grade 10.9 Dock Washers
ASTM A324 HT 10.9 Double Ended Studs
ASTM A324 HT Gr 10.9 Panel Nuts
SA324 HT 10.9 Hex Bolts
Grade 10.9 Self Locking Nuts
High tensile 10.9 T Nuts
High Tensile Gr 10.9 Grade A324 Self Tapping Screw
Gr 10.9 Carriage Bolts
Grade 10.9 Roofing Screw
A324 HT 10.9 Stud Bolts
Grade 10.9 Dome Nuts
Grade 10.9 Concrete Screw
DIA |
M4 |
M5 |
M6 |
M8 |
M10 |
M12 |
M14 |
M16 |
M18 |
M20 |
M22 |
M24 |
M27 |
M30 |
M33 |
M36 |
M39 |
M42 |
M45 |
M48 |
M52 |
Pitch |
0.7 |
0.8 |
1 |
1.25 |
1.5 |
1.75 |
2 |
2.5 |
3 |
3.5 |
4 |
4.5 |
5 |
||||||||
Grade A upto length |
40 |
50 |
60 |
80 |
100 |
120 |
140 |
150 |
Grade A not applicable to these dia’s |
||||||||||||
Head Across Flat (S) Nom = Max Min Grade A Grade B |
7 |
8 |
10 |
13 |
16 |
18 |
21 |
24 |
27 |
30 |
34 |
36 |
41 |
46 |
50 |
55 |
60 |
65 |
70 |
75 |
80 |
6.78 |
7.78 |
9.78 |
12.73 |
15.73 |
17.73 |
20.67 |
23.67 |
26.67 |
29.67 |
33.38 |
35.38 |
Grade A not applicable to these dia’s |
|||||||||
6.64 |
7.64 |
9.64 |
12.57 |
15.57 |
17.57 |
20.16 |
23.16 |
26.16 |
29.16 |
33 |
35 |
40 |
45 |
49 |
53.8 |
58.8 |
63.1 |
68.1 |
73.1 |
78.1 |
|
Head Height (K) Nom Tol + or – Grade A Grade B |
2.8 |
3.5 |
4 |
5.3 |
6.4 |
7.5 |
8.8 |
10 |
11.5 |
12.5 |
14 |
15 |
17 |
18.7 |
21 |
22.5 |
25 |
26 |
28 |
30 |
33 |
0.125 |
0.15 |
0.18 |
0.215 |
Grade A not applicable to these dia’s |
|||||||||||||||||
0.2 |
0.24 |
0.29 |
0.35 |
0.42 |
0.5 |
||||||||||||||||
Across corners e Min Grade A Grade B |
7.66 |
8.79 |
11.05 |
14.38 |
17.77 |
20.03 |
23.36 |
26.75 |
30.14 |
33.53 |
37.72 |
39.98 |
Grade A not applicable to these dia’s |
||||||||
7.5 |
8.63 |
10.89 |
14.2 |
17.59 |
19.85 |
22.78 |
26.17 |
29.56 |
32.95 |
37.29 |
39.55 |
45.2 |
50.85 |
55.37 |
60.79 |
66.44 |
71.3 |
76.95 |
82.6 |
88.25 |
|
Thread Length (b) For lengths < or = 125mm For lengths > 125mm <= 200mm For lengths > 200mm |
14 |
16 |
18 |
22 |
26 |
30 |
34 |
38 |
42 |
46 |
50 |
54 |
60 |
66 |
Not specified as full thread recommended |
||||||
20 |
22 |
24 |
28 |
32 |
36 |
40 |
44 |
48 |
52 |
56 |
60 |
66 |
72 |
78 |
84 |
90 |
96 |
102 |
108 |
116 |
|
33 |
35 |
37 |
41 |
45 |
49 |
53 |
57 |
61 |
65 |
69 |
73 |
79 |
85 |
91 |
97 |
103 |
109 |
115 |
121 |
129 |
|
Major Dia at thread (min) |
3.838 |
4.826 |
5.794 |
7.76 |
9.732 |
11.701 |
13.682 |
15.682 |
17.623 |
19.623 |
21.623 |
23.577 |
26.577 |
29.522 |
32.522 |
35.465 |
38.465 |
41.437 |
44.437 |
47.399 |
51.399 |
Major Dia at thread (max) |
3.978 |
4.976 |
5.974 |
7.972 |
9.968 |
11.966 |
13.962 |
15.962 |
17.958 |
19.958 |
21.958 |
23.952 |
26.952 |
29.947 |
32.947 |
35.94 |
38.94 |
41.937 |
44.937 |
47.929 |
51.929 |
DIA |
1/4 |
5/16 |
3/8 |
7/16 |
1/2 |
9/16 |
5/8 |
3/4 |
7/8 |
1 |
1 1/8 |
1 1/4 |
1 3/8 |
1 1/2 |
1 3/4 |
2 |
BSW Pitch (TPI) |
20 |
18 |
16 |
14 |
12 |
12 |
11 |
10 |
9 |
8 |
7 |
7 |
6 |
5 |
4.5 |
|
BSF PITCH (TPI) |
26 |
22 |
20 |
18 |
16 |
16 |
14 |
12 |
11 |
10 |
9 |
9 |
8 |
8 |
7 |
7 |
Head Across Flat (S) Min Max |
0.438 |
0.518 |
0.592 |
0.702 |
0.812 |
0.912 |
1.000 |
1.190 |
1.288 |
1.468 |
1.640 |
1.815 |
2.005 |
2.175 |
2.520 |
2.700 |
0.445 |
0.525 |
0.600 |
0.710 |
0.820 |
0.920 |
1.010 |
1.200 |
1.300 |
1.480 |
1.670 |
1.860 |
2.050 |
2.220 |
2.580 |
2.760 |
|
Head height (K) Min Max |
0.166 |
0.208 |
0.250 |
0.292 |
0.333 |
0.365 |
0.407 |
0.480 |
0.563 |
0.636 |
0.710 |
0.790 |
0.880 |
0.960 |
1.110 |
1.270 |
0.176 |
0.218 |
0.260 |
0.302 |
0.343 |
0.375 |
0.417 |
0.500 |
0.583 |
0.666 |
0.750 |
0.830 |
0.920 |
1.000 |
1.170 |
1.330 |
|
Across corners e Max |
0.51 |
0.61 |
0.69 |
0.82 |
0.95 |
1.06 |
1.17 |
1.39 |
1.50 |
1.71 |
1.93 |
2.15 |
2.37 |
2.56 |
2.98 |
3.19 |
Thread Length b Min |
Twice the Dia (2D) |
|||||||||||||||
Major Dia at thread BSW (min) |
0.2427 |
0.3046 |
0.3666 |
0.4285 |
0.4904 |
0.5527 |
0.6147 |
0.7390 |
0.8653 |
0.9897 |
1.1140 |
1.2388 |
1.4879 |
1.7369 |
1.9862 |
|
Major Dia at thread BSW (max) |
0.2488 |
0.3112 |
0.3736 |
0.4360 |
0.4985 |
0.5609 |
0.6233 |
0.7482 |
0.8750 |
1.000 |
1.1250 |
1.250 |
1.500 |
1.750 |
2.000 |
|
Major Dia at thread BSF (min) |
0.2432 |
0.3051 |
0.3671 |
0.4290 |
0.4910 |
0.5533 |
0.6153 |
0.7394 |
0.8658 |
0.9902 |
1.1148 |
1.2395 |
1.3640 |
1.4888 |
1.7380 |
1.9876 |
Major Dia at thread BSF (max) |
0.2489 |
0.3113 |
0.3737 |
0.4361 |
0.4985 |
0.5610 |
0.6234 |
0.7482 |
0.8750 |
1.000 |
1.1250 |
1.250 |
1.375 |
1.500 |
||
DIA |
M16 |
M20 |
M22 |
M24 |
M27 |
M30 |
M36 |
HARDNESS FOR PL. WASHER |
35 TO 45 HRC |
||||||
Hardness for Hot Dip Galvd washer |
26 HRC |
||||||
Outer Dia (Max) d2 |
34 |
42 |
44 |
50 |
56 |
60 |
72 |
Inner Dia (Min) d1 |
18 |
22 |
24 |
26 |
30 |
33 |
39 |
Thickness (S) |
3.1 TO 4.6 |
||||||
Tolerance for OD Minus(-) |
1.6 |
1.9 |
|||||
Tolerance for ID Plus(+) |
0.43 |
0.52 |
0.62 |
||||
DIA |
M4 |
M5 |
M6 |
M8 |
M10 |
M12 |
M14 |
M16 |
M18 |
M20 |
M22 |
M24 |
M27 |
M30 |
M33 |
M36 |
M39 |
M42 |
M45 |
M48 |
M52 |
Pitch |
0.7 |
0.8 |
1 |
1.25 |
1.5 |
1.75 |
2 |
2 |
2.5 |
2.5 |
2.5 |
3 |
3 |
3.5 |
3.5 |
4 |
4 |
4.5 |
4.5 |
5 |
5 |
Grade A upto length |
40 |
50 |
60 |
80 |
100 |
120 |
140 |
150 |
Grade A not applicable to these dia’s |
||||||||||||
Head Across Flat (S) Max Min(Grade A) Min (Grade B) |
7 |
8 |
10 |
13 |
16 |
18 |
21 |
24 |
27 |
30 |
34 |
36 |
41 |
46 |
50 |
55 |
60 |
65 |
70 |
75 |
80 |
6.78 |
7.78 |
9.78 |
12.73 |
15.73 |
17.73 |
20.67 |
23.67 |
26.67 |
29.67 |
33.38 |
35.38 |
Grade A not applicable to these dia’s |
|||||||||
6.64 |
7.64 |
9.64 |
12.57 |
15.57 |
17.57 |
20.16 |
23.16 |
26.16 |
29.16 |
33 |
35 |
40 |
45 |
49 |
53.8 |
58.8 |
63.1 |
68.1 |
73.1 |
78.1 |
|
Head Thickness (K) Tol + or – Grade A
Grade B |
2.8 |
3.5 |
4 |
5.3 |
6.4 |
7.5 |
8.8 |
10 |
11.5 |
12.5 |
14 |
15 |
17 |
18.7 |
21 |
22.5 |
25 |
26 |
28 |
30 |
33 |
0.125 |
0.15 |
0.18 |
0.215 |
Grade A not applicable to these dia’s |
|||||||||||||||||
0.2 |
0.24 |
0.29 |
0.35 |
0.42 |
0.5 |
||||||||||||||||
Across corners e Min Grade A
Min Grade B |
7.66 |
8.79 |
11.05 |
14.38 |
17.77 |
20.03 |
23.36 |
26.75 |
30.14 |
33.53 |
37.72 |
39.98 |
Grade A not applicable to these dia’s |
||||||||
7.5 |
8.63 |
10.89 |
14.2 |
17.59 |
19.85 |
22.78 |
26.17 |
29.56 |
32.95 |
37.29 |
39.55 |
45.2 |
50.85 |
55.37 |
60.79 |
66.44 |
71.3 |
76.95 |
82.6 |
88.25 |
|
Major Dia at thread (min) |
3.838 |
4.826 |
5.794 |
7.76 |
9.732 |
11.701 |
13.682 |
15.682 |
17.623 |
19.623 |
21.623 |
23.577 |
26.577 |
29.522 |
32.522 |
35.465 |
38.465 |
41.437 |
44.437 |
47.399 |
51.399 |
Major Dia at thread (max) |
3.978 |
4.976 |
5.974 |
7.972 |
9.968 |
11.966 |
13.962 |
15.962 |
17.958 |
19.958 |
21.958 |
23.952 |
26.952 |
29.947 |
32.947 |
35.94 |
38.94 |
41.937 |
44.937 |
47.929 |
51.929 |