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ASTM A193 B8C Hex Bolt Dimension

HEX BOLT & NUT DIMENSION
ASTM A193 B8C Hex Bolt Dimension

ASTM A193 B8C Hex Bolt Dimension

The ASTM A193 Grade B8C specification material is known for being a corrosion resistant grade. The ASTM A193 Grade B8c material is used in those applications which demand that the fastener have a high tensile strength and the ability to withstand high temperature.

Therefore they can be seen in equipment’s and special purpose applications like pressure piping & pressure vessels bolting. ASTM A193 Gr. B8c is a heat-treated, work-hardened (or a combination of both treatments) austenitic stainless steel.

Specification of ASTM A193 B8C Bolts


Grade
Tensile Class
Raw Material Description
B8C
Class 1
AISI 347 Stainless Steel, Carbide Solution Treated
B8C
Class 2
AISI 347 Stainless Steel, Carbide Solution Treated and Strained Hardened

ASTM A193 B8C Hex Bolt Dimension

ASTM A193 B8C Hex Bolt Dimension

* * All measurements in millimeters* *

NOMINAL SIZE (D)
BODY DIAMETER
HEAD THICKNEASTM A193
ACROASTM A193 THE FLATS
ACROASTM A193 CORNERS
D (MAX)
D (MIN)
H (MAX)
H (MIN)
F (MAX)
F (MIN)
C (MAX)
C (MIN)
m10
10.00
9.78
6.63
6.17
17.00
15.73
18.48
17.77
m12
12.00
11.73
7.76
4.24
19.00
17.73
20.78
20.03
m14
14.00
13.73
9.09
8.51
22.00
20.67
24.25
23.35
m16
16.00
15.73
10.32
9.68
24.00
23.67
27.71
26.75
m20
20.00
19.67
12.88
12.12
30.00
29.16
34.64
32.95
m24
24.00
23.67
15.44
14.56
36.00
35.00
41.57
39.55
m30
30.00
29.67
19.48
17.92
46.00
45.00
53.12
50.85
m36
36.00
35.61
23.38
21.63
55.00
53.80
63.51
60.79
m42
42.00
41.38
26.97
25.03
65.00
62.90
75.06
71.71
m48
48.00
47.38
31.07
28.93
75.00
72.60
86.60
82.76
m56
56.00
55.26
36.2
33.80
85.00
82.20
98.15
93.71
m64
64.00
63.26
41.32
38.68
95.00
91.80
109.70
104.65
m72
72.00
71.26
46.45
43.55
105.00
101.40
121.24
115.60
m80
80.00
79.26
51.58
48.42
115.00
111.00
132.72
126.54
m90
90.00
89.13
57.74
54.26
130.00
125.50
150.11
143.07
m100
90.00
99.13
63.9
60.10
145.00
140.00
167.43
159.60

Dimensions Of A193 B8C Heavy Hex Bolts

ASTM A193 B8C Heavy Hex Bolt Dimension

Diameter (D)
Body Diameter (D)
Across the Flats (F)
Across the Corners ©
Head Height (H)
Thread Lengths (T)
MAX
MIN
MAX
MIN
MAX
MIN
MAX
MIN
< 6”
> 6”
1/2
0.515
0.482
0.875
0.85
1.01
0.969
0.364
0.302
1.25
1.5
5/8
0.642
0.605
1.062
1.031
1.227
1.175
0.444
0.378
1.5
1.75
3/4
0.768
0.729
1.25
1.212
1.443
1.383
0.524
0.455
1.75
2
7/8
0.895
0.852
1.438
1.394
1.66
1.589
0.604
0.531
2
2.25
1
1.022
0.976
1.625
1.575
1.876
1.796
0.7
0.591
2.25
2.5
1 1/8
1.149
1.098
1.812
1.756
2.093
2.002
0.78
0.658
2.5
2.75
1 1/4
1.277
1.223
2
1.938
2.309
2.209
0.876
0.749
2.75
3
1 3/8
1.404
1.345
2.188
2.119
2.526
2.416
0.94
0.81
3
3.25
1 1/2
1.531
1.47
2.375
2.3
2.742
2.622
1.036
0.902
3.25
3.5
1 3/4
1.785
1.716
2.75
2.662
3.175
3.035
1.196
1.054
3.75
4
2
2.039
1.964
3.125
3.025
3.608
3.449
1.388
1.175
4.25
4.5
2 1/4
2.305
2.214
3.5
3.388
4.041
3.862
1.548
1.327
4.75
5
2 1/2
2.559
2.461
3.875
3.75
4.474
4.275
1.708
1.479
5.25
5.5
2 3/4
2.827
2.711
4.25
4.112
4.907
4.688
1.869
1.632
5.75
6
3
3.081
2.961
4.625
4.475
5.34
5.102
2.06
1.815
6.25
6.

Size Chart of ASTM A193 B8C Bolt

ASTM A193 B8C Bolt Size Chart