High Tensile Grade 8.8 Hex Bolts
AS1252 Structural Bolts, Nuts and 8.8 Fasteners manufacturer in India
Class 8.8 Studs
Class 8.8 Nuts
BS 3692 Grade 8.8 Hex Bolt
M20 Grade 8.8 Galvanised Bolts
ASME SA324 8.8 Stainless Steel Bolts
Table of contents
- What Is 8.8 CW Bolt?
- Grade 8.8 Bolts Mechanical Properties
- Class 8.8 Nuts Chemical Composition
- High Tensile Class 8.8 Studs Specification List
- BS 3692 Grade 8.8 Hex Bolt Dimensions Chart
- En 15048 Bolts Size Chart
- Grade 8.8 Bolt Shear Strength
- Class 8.8 Bolt Torque Chart
- Grade 8.8 Bolt Material Equivalent
Manufacturer and supplier of Class 8.8 Jh Bolt in Metric sizes M12/ M16, buy Grade 8.8 Threaded Rod, Screw, Washer, Nuts in custom sizes.
What is 8.8 cw bolt?
CW is marked on high tensile 8.8 bolt which means Cold Worked, its a low temperature manufacturing process.
Grade 8.8 Bolts Mechanical Properties
| Gr. | Size Range | PS [MPa] | YS (minimum) [MPa] | TS (minimum) [MPa] | Hardness [Rockwell] |
|---|---|---|---|---|---|
| Class 8.8 | Under M16 | 580 | 640 | 800 | |
| 17-72 | 600 | 660 | 830 | C23–34 |
Class 8.8 Nuts Chemical Composition
| CLASS | Material And Treatment | C | C | P | S | B | Tempering Temp. [C] |
|---|---|---|---|---|---|---|---|
| Minimum | Maximum | Maximum | Maximum | Maximum | |||
| 8.8 | Carbon Steel With Additives (E.g. B, Mn Or Cr) Quenched And Tempered | 0.15 (D) | 0.4 | 0.025 | 0.025 | 0.003 | 425 |
| Carbon Steel Quenched And Tempered | 0.25 | 0.55 | 0.035 | 0.025 |
BS 4190 Stud Bolt Grade 8.8 and ASTM F568m Galvanised Hsfg Bolts manufacturer in India, view price list ex Mumbai.
High Tensile Class 8.8 Studs Specification List
| ASTM Standards | DIN 933 / 931, DIN ISO EN 4017 And 4014, IS 1363 / 1363 |
| Size | Dia. 20 to 100 MM / Inches 3/4 to 3.1/2 |
| Surface Finish | Plain / Zinc plated / Hot dip galvanised |
BS 3692 Grade 8.8 Hex Bolt Dimensions Chart
| Bolt Diameter | Body Diameter | Head Diameter(F) | Head Height (H) | Degree of Slope | |||
|---|---|---|---|---|---|---|---|
| (D) | Maximum | Maximum Edge Sharp | Minimum Edge Sharp | Absolute Minimum Rounded | Maximum | Minimum | |
| 1/2 | 0.515 | 0.935 | 0.905 | 0.845 | 0.269 | 0.233 | 78° to 82° |
| 5/8 | 0.642 | 1.169 | 1.132 | 1.066 | 0.336 | 0.292 | 78° to 82° |
| 3/4 | 0.768 | 1.402 | 1.357 | 1.285 | 0.403 | 0.349 | 78° to 82° |
| 7/8 | 0.895 | 1.637 | 1.584 | 1.511 | 0.47 | 0.408 | 78° to 82° |
| 1 | 1.022 | 1.869 | 1.81 | 1.735 | 0.537 | 0.466 | 78° to 82° |
| 1-1/8 | 1.149 | 2.104 | 2.037 | 1.962 | 0.604 | 0.525 | 78° to 82° |
| 1-1/4 | 1.277 | 2.337 | 2.262 | 2.187 | 0.671 | 0.582 | 78° to 82° |
| 1-3/8 | 1.404 | 2.571 | 2.489 | 2.414 | 0.738 | 0.641 | 78° to 82° |
| 1-1/2 | 1.531 | 2.804 | 2.715 | 2.64 | 0.805 | 0.698 | 78° to 82° |
| ASME B18.5 1990 (R 1998) Dimensions | |||||||
Looking for Grade 8.8 Bolts manufacturers in India? Hot dipped galvanised BS 3692 High Tensile Anchor Bolt and 8.8 HT Structural Fasteners exporter in India.
| Diameter Chart | M4 | M5 | M6 | M8 | M10 | M12 | M14 | M16 | M18 | M20 | M22 | M24 | M27 | M30 | M33 | M36 | M39 | M42 | M45 | M48 | M52 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pitch List | 0.7 | 0.8 | 1 | 1.25 | 1.5 | 1.75 |
2 |
2.5 |
3 |
3.5 |
4 |
4.5 |
5 |
||||||||
| GR A Length | 40 | 50 | 60 | 80 | 100 | 120 | 140 |
150 |
Grade A not applicable to these diameter | ||||||||||||
|
Head Across Flat (S) Normal = Maximum Minimum GR A GR 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 |
GR A not applicable to these dia. | |||||||||
| 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 Nom Tol + or – GR A GR 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 |
GR A not applicable to these dia. | |||||||||||||||||
| 0.2 |
0.24 |
0.29 |
0.35 |
0.42 |
0.5 | ||||||||||||||||
|
Across corners e Minimum GR A GR 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 |
GR A not applicable to these dia. | ||||||||
| 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 = 125ilimeter For lengths > 12ilimeter <= 200milimeter For lengths > 200ilimeter | 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 Diameter at thread (minimum) | 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 (maximum) | 3.978 | 4.976 | 5.974 | 7.972 | 9.968 | 11.966 | 13.962 | 15.962 | 17.958 | ||||||||||||
Manufacturer of Cold Worked 8.8 Cw and Jh Bolt in India for suspension, view properties, tensile stress, shear strength, weight and torque chart.
En 15048 Bolts Size Chart
| Class and Material | Nominal Size Range (mm) | Mechanical Properties | ||
|---|---|---|---|---|
| Proof Load (MPa) | Minimum Yield Strength (MPa) | Minimum Tensile Strength (MPa) | ||
| Class 8.8 Medium carbon steel, quenched and tempered | All sizes below 16 millimeter | 580 |
640 |
800 |
| 16mm - 72mm | 600 | 660 | 830 | |
Grade 8.8 Bolt Shear Strength
|
Bolt Diameter
|
Tensile
Stress Area At |
Tension
Capacity |
Shear
Capacity |
Bearing Capacity in kN (Min. of Pbb and Pbs) Thick. in millimeter of material passed through |
||||||||||||
|
Nominal
0.8 At pt |
Exact |
Single
Shear |
Double
Shear |
|||||||||||||
|
Pnom
|
Pt
|
Ps
|
2 Ps
|
|||||||||||||
|
millimeter
|
millimeter2
|
kN
|
kN
|
kN
|
kN
|
5
|
6
|
7
|
8
|
9
|
10
|
12
|
15
|
20
|
25
|
30
|
|
12
|
84.3
|
37.8
|
47.2
|
31.6
|
63.2
|
33.0
|
39.6
|
46.2
|
52.8
|
59.4
|
66.0
|
79.2
|
99.0
|
132
|
165
|
198
|
|
16
|
157
|
70.3
|
87.9
|
58.9
|
118
|
44.0
|
52.8
|
61.6
|
70.4
|
79.2
|
88.0
|
106
|
132
|
176
|
220
|
264
|
|
20
|
245
|
110
|
137
|
91.9
|
184
|
55.0
|
66.0
|
77.0
|
88.0
|
99.0
|
110
|
132
|
165
|
220
|
275
|
330
|
|
22
|
303
|
136
|
170
|
114
|
227
|
60.5
|
72.6
|
84.7
|
96.8
|
109
|
121
|
145
|
182
|
242
|
303
|
363
|
|
24
|
353
|
158
|
198
|
132
|
265
|
66.0
|
79.2
|
92.4
|
106
|
119
|
132
|
158
|
198
|
264
|
330
|
396
|
|
27
|
459
|
206
|
257
|
172
|
344
|
74.3
|
89.1
|
104
|
119
|
134
|
149
|
178
|
223
|
297
|
371
|
446
|
|
30
|
561
|
251
|
314
|
210
|
421
|
82.5
|
99.0
|
116
|
132
|
149
|
165
|
198
|
248
|
330
|
413
|
495
|
Grade 8.8 Bolt Material Equivalent
| Diameter Ranges | Grade Of Metric | Approx. ASTM Equivalent | Description | Tensile, minimum | Yield, minimum | ||
|---|---|---|---|---|---|---|---|
| Mpa | ksi | Mpa | ksi | ||||
| All | 4.6 | A307A | Low or medium carbon steel (cs) | 400 | 58 | 240 | 35 |
| through 1" (M24) | 5.8 | - | Cold worked low or medium carbon steel | 520 | 75 | 420 | 61 |
| through 1" (M24) | 8.8 | A449 | Heat treated medium carbon steel | 830 | 120 | 660 | 96 |
| above 1" (M24) | 8.8 | A193B7/A354BC or F1554G105 | Heat treated medium carbon steel | 830 | 120 | 660 | 96 |
| through 1-1/2" (M36) | 8.8.3 | A325 Type 3 / A449 Type 3 | Heat treated medium carbon weathering steel | 830 | 120 | 660 | 96 |
| All | 10.9 | A490/A354BD | Heat treated medium carbon alloy steel | 1040 | 151 | 940 | 136 |
| through 1-1/2" (M36) | 10.9.3 | A490 Type 3 | Heat treated medium carbon alloy weathering steel | 1040 | 151 | 940 | 136 |
| All | 12.9 | A574 | Heat treated alloy steel | 1220 | 177 | 1100 | 160 |
Class 8.8 Bolt Torque Chart
| Max. Recommended Tightening Torques | ||||||||
| Metric Course Pitch | Gr. 12.9 Plated | Metric Course Pitch | Gr. 10.9 Plated | Metric Course Pitch | Gr. 8.8 Plated | |||
| Nm | ft-lb | Nm | ft-lb | Nm | ft-lb | |||
| M6 | 14 | 10 | M6 | 12 | 9 | M6 | 8 | 6 |
| M8 | 34 | 25 | M8 | 29 | 21 | M8 | 20 | 15 |
| M10 | 68 | 50 | M10 | 57 | 42 | M10 | 40 | 30 |
| M12 | 119 | 88 | M12 | 99 | 73 | M12 | 70 | 52 |
| (M14) | 189 | 139 | (M14) | 158 | 116 | (M14) | 112 | 83 |
| M16 | 295 | 218 | M16 | 246 | 181 | M16 | 175 | 129 |
| (M18) | 406 | 299 | (M18) | 338 | 249 | (M18) | 241 | 177 |
| M20 | 576 | 424 | M20 | 480 | 354 | M20 | 341 | 252 |
| (M22) | 783 | 577 | (M22) | 652 | 481 | (M22) | 464 | 342 |
| M24 | 995 | 734 | M24 | 829 | 612 | M24 | 590 | 435 |
| (M27) | 1456 | 1074 | (M27) | 1213 | 895 | (M27) | 863 | 636 |
| M30 | 1977 | 1458 | M30 | 1647 | 1215 | M30 | 1171 | 864 |
| (M33) | 2690 | 1984 | (M33) | 2242 | 1653 | (M33) | 1594 | 1176 |
| M36 | 3454 | 2548 | M36 | 2879 | 2123 | M36 | 2047 | 1510 |
| (M39) | 4471 | 3298 | (M39) | 3726 | 2748 | (M39) | 2649 | 1954 |
| M42 | 5525 | 4075 | M42 | 4604 | 3396 | M42 | 3274 | 2415 |
| (M45) | 6871 | 5068 | (M45) | 5726 | 4223 | (M45) | 4072 | 3003 |
| M48 | 8287 | 6113 | M48 | 6906 | 5094 | M48 | 4911 | 3622 |
| M52 | 10749 | 7928 | M52 | 8958 | 6607 | M52 | 6370 | 4698 |