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High tensile Grade 12.9 Hex Bolts

Home|Fasteners| Grade 12.9 Threaded rod

Grade 12.9 Grade Bolt Manufacturers in India

Grade 12.9 Hex Bolts are high strength bolts with 1100MPa minimum yield strength and 1220MPa minimum tensile strength. Suraj Metal Corporation is a leading manufacturer and supplier of the different types such as the Grade 12.9 Hex Head Bolts and others. The bolts come in different sizes and standards. The Grade 12.9 Material is quenched and tempered to provide hardness and strength to the bolts.

High tensile 12.9 hex Bolts

High tensile 12.9 hex Bolts

Grade 12.9 Socket Cap Screws

Grade 12.9 Socket Cap Screws

Check price & dimensions of Grade 12.9 Threaded Bar and 12.9 Grade Allen Bolt

The sizes range from M5 through M160 for different types of bolts. The material is an alloy steel. Class 12.9 Hex Bolt can come with zinc plated, plain or hot dip galvanized finish. There are different types of heads and threads. The 12.9 Grade Allen Bolt is useful to install in narrow spaces where the conventional wrenches could not be operated. The Grade 12.9 Metric Hex Head Bolts are the most used because of their ease of installation with tools and the mechanical strength. The use of the different types of Grade 12.9 Metric Bolts can be seen in different applications as oil and gas, petroleum, chemical, heat exchanger, ship building and many other applications. The Grade 12.9 Threaded Bar is used to connect two components without the use of nuts, heads or slots. There are one end threaded and both end threaded bars that do not need the Grade 12.9 Nuts for fastening. Please feel free to contact us to know more about the Grade 12.9 Studs, other fasteners and a complete price list

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Table of Content


High tensile garde 12.9 Hex Bolts Specification Format

Grade 12.9 Bolts Grades DIN 933 Grade 12.9
Grade 12.9 Studs Standard ASTM F568, ASME SF568
Grade 12.9 Threaded Rod Size Dia 1.6mm to 100 mm
Inch 3/4" to 3.1/2"
Grade 12.9 Set Screws finish Zinc plated / Plain / Hot dip galvanised

Grade 12.9 Bolts Mechanical Properties

View Class 12.9 Hex Bolt Updated price list and Grade 12.9 Bolts Mechanical Properties Online

Class Nominal Size Range
(mm)		 Mechanical Properties
Proof Load
(MPa)		 Min. Yield Strength
(MPa)		 Min. Tensile Strength
(MPa)

Class 12.9

 1.6mm - 100mm 970 1100 1220

Different types of High tensile grade 12.9 threaded rod

Grade 12.9 Bolt

Grade 12.9 Bolt

Grade 12.9 Alloy Steel Fasteners

Grade 12.9 Alloy Steel Fasteners

12.9 Grade Allen Bolt

12.9 Grade Allen Bolt

Grade 12.9 Cap Screw

Grade 12.9 Cap Screw

Grade 12.9 Socket Cap Screws

Grade 12.9 Socket Cap Screws

Grade 12.9 Fasteners

Grade 12.9 Fasteners

Grade 12.9 Flange Bolts

Grade 12.9 Flange Bolts

Grade 12.9 Galvanised Bolts

Grade 12.9 Galvanised Bolts

Class 12.9 Cap Screw

Class 12.9 Cap Screw

Grade 12.9 Hex Head Bolts

Grade 12.9 Hex Head Bolts

Grade 12.9 High Tensile Bolts

Grade 12.9 High Tensile Bolts

Grade 12.9 Head Bolts

Grade 12.9 Head Bolts

Grade 12.9 Metric Studs

Grade 12.9 Metric Studs

Grade 12.9 M10 Bolt

Grade 12.9 M10 Bolt

Class 12.9 Nut

Class 12.9 Nut

Grade 12.9 Threaded Rod

Grade 12.9 Threaded Rod

Grade 12.9 Screw

Grade 12.9 Screw

Grade 12.9 Socket Head Cap Screws

Grade 12.9 Socket Head Cap Screws


DIN 933 Grade 12.9 Bolts Size Schedule Chart

Buy custom sizes Grade 12.9 Studs, DIN 933 Grade 12.9 Bolts & HT Grade 12.9 Threaded Rods from our Inventory
Size Chart of Grade 8.8 Bolts

High Strength Garde 12.9 Friction Hex Nuts Dimension Chart

DIA M16 M20 M22 M24 M27 M30 M36
Pitch 2 2.5 2.5 3 3 3.5 4
Head Across Flat (B) Min 26.16 33 35 40 45 49 58.8
Head Across Flat (B) Max 27 34 36 41 46 50 60
Minor Dia at thread (min) 14.235 17.694 19.694 21.202 24.252 26.761 32.270
Minor Dia at thread (max) 14.610 18.144 20.144 21.702 24.752 27.321 32.870
Height (H) Min Max 16.4 19.4 22.3 22.9 26.3 29.1 35
17.1 20.7 23.6 24.2 27.6 30.7 36.6
Across corners C min 29.56 37.29 39.55 45.20 50.85 55.37 66.44

Class 12.9 hex Nut Dimension Standard

Diameter 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
Across Flat (S) Max Minimum 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 26.16 29.16 33 35 40 45 49 53.8 510.9 63.1 68.1 73.1 78.1
Thickness (M) Max Minimum 3.2 4.7 5.2 6.8 8.4 10.8 12.8 14.8 15.8 18 19.4 21.5 23.8 25.6 28.7 31 33.4 34 36 38 42
2.9 4.4 4.9 6.44 8.04 10.37 12.1 14.1 15.1 16.9 18.1 20.2 22.5 24.3 27.4 29.4 31.8 32.4 34.4 36.4 40.4
Minor Dia at thread (maximum) 3.422 4.334 5.153 6.912 8.676 10.441 12.210 14.210 15.744 17.774 19.774 21.252 24.252 26.771 29.771 32.27 35.27 37.799 40.799 43.297 47.297
Across corners (E) Min 7.66 8.79 11.05 14.38 17.77 20.03 23.35 26.75 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
Minor Dia at thread (min) 3.242 4.134 4.917 6.647 8.376 10.106 11.835 13.835 15.294 17.294 19.294 20.752 23.752 26.211 29.211 31.67 34.67 37.129 40.129 42.587 46.587

Grade 12.9 Hex Nuts In Bsw Threads To Bs 1083-1965

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
WIDTH 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
Minor Dia at thread BSF (min) 0.2008 0.2543 0.3110 0.3663 0.4200 0.4825 0.5336 0.6432 0.7586 0.8720 0.9828 1.1078 1.2150 1.3400 1.5670 1.8170
Minor Dia at thread BSF (max) 0.2125 0.2684 0.3280 0.3844 0.4395 0.5020 0.5549 0.6669 0.7838 0.8990 1.0120 1.1370 1.2470 1.3720 1.6026 1.8526
Thickness (M) Min Max 0.190 0.240 0.302 0.365 0.427 0.490 0.552 0.677 0.740 0.865 0.990 1.105 1.230 1.355 1.605 1.730
0.200 0.250 0.312 0.375 0.437 0.500 0.562 0.687 0.750 0.875 1.000 1.125 1.250 1.375 1.625 1.750
Across corners (Max inches) 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
Minor Dia at thread BSW (min) 0.1860 0.2413 0.2950 0.3461 0.3932 0.4557 0.5086 0.6220 0.7328 0.8400 0.9420 1.0670 – 1.2866 1.4938 1.7154
Minor Dia at thread BSW (max) 0.2030 0.2594 0.3145 0.3674 0.4169 0.4794 0.5338 0.6490 0.7620 0.8720 0.9776 1.1026 – 1.3269 1.5408 1.7668

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
Minor Dia at thread (min) 3.242 4.134 4.917 6.647 8.376 10.106 11.835 13.835 15.294 17.294 19.294 20.752 23.752 26.211 29.211 31.67 34.67 37.129 40.129 42.587 46.587
Minor Dia at thread (max) 3.422 4.334 5.153 6.912 8.676 10.441 12.210 14.210 15.744 17.774 19.774 21.252 24.252 26.771 29.771 32.27 35.27 37.799 40.799 43.297 47.297
Across Flat (S) Max Min 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 26.16 29.16 33 35 40 45 49 53.8 58.8 63.1 68.1 73.1 78.1
Thickness (M) Max Min 3.2 4.7 5.2 6.8 8.4 10.8 12.8 14.8 15.8 18 19.4 21.5 23.8 25.6 28.7 31 33.4 34 36 38 42
2.9 4.4 4.9 6.44 8.04 10.37 12.1 14.1 15.1 16.9 18.1 20.2 22.5 24.3 27.4 29.4 31.8 32.4 34.4 36.4 40.4
Across corners (E) Min 7.66 8.79 11.05 14.38 17.77 20.03 23.35 26.75 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

Dimensions of Grade 12.9 Fasteners

Wide range of styles and sizes in Grade 12.9 Studs, Grade 12.9 Cap screw, and grade 12.9 high tensile bolts
Grade 8.8 Hex Bolt Dimension
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
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
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

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

HT Grade 12.9 Washer Dimension Table

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

Grade 12.9 Socket Cap Screws Dimensions Schedule

Dimensions of Grade 8.8 Hex 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 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
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
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

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