The ASTM A193 B8m Bolts specification covers both alloy steel as well as stainless steel bolting material. The bolting produced from ASTM A193 Grade B8m Bolts are meant to be used for applications in pressure vessels, valves, flanges, and fittings. Typically, the ASTM A193 B8m Class 1 Bolts is used for high temperature or high pressure service, as well as for other special purpose applications. Ferritic steels which fall under the ASTM A193 Grade B8m Class 2 Bolts category must be properly heat treated as, what best suits the high temperature features of each grade. Immediately after rolling or forging, the bolting ASTM A193 B8m Torque material has to be allowed to be cooled.
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ASTM A193 B8m Bolts
ASME SA 193 B8m Class 2 Studs, Hex Bolt and B8m nuts manufacturer in India.
The steel A193 B8M Bolts must not contain an unspecified element for ordered grade to an extent at which the steel Sa193 B8m bolts conforms to the requirements of another grade for which that particular element is a specified element. The tensile property and hardness property requirements of the ASTM A193 Grade B8m Class 2 Bolts have been discussed in the specification. The tensile strength property requirements of the A193 B8m Cl2 has been highlighted by a full size fasteners, wedge tensile testing. Click on the given link for the A193 B8M Torque Chart
The ASTM A193 B8M specification fasteners such as the A193 B8m Stud Bolts are heavily utilized in industries like petroleum and chemical. The ASTM A193 B8m fasteners often find use in applications that involve the construction industry. Although, the ASTM A193 Gr B8m material is frequently available in national coarse or also referred to as UNC thread pitches, if the ASTM A193 B8m Class 1 Torque are being used in traditional applications, threads are specified in the ASTM A193 B8m Pdf mention 8 threads per inch or tpi for those fasteners which have a diameter above one inch.
Which Sort of ASTM A193 B8m Bolts Manufacturer you're trying to find ?
- Exceptionally experienced and ancient Company: Yes Siddhagiri Metals is one of the oldest Manufacturer of Astm A193 Class 2 Grade B8m Bolts
- All Sizes and Wall thickness are in Stock so no delay and immediate celerity of material
- No confinement of least amount; We cherish to supply indeed a single Astm A193 Gr B8m Bolt
Fasteners from ASTM A193 B8m Class 1 are similar to Grade B8. But instead of being manufactured from AISI 304 grade stainless steel, the A193 B8 Class 1 has been produced from AISI 316 stainless steel grade. The Type 316 ASTM A193 B8m Class 2 Torque stainless offers superior resistance to corrosion as compared to grade 304 stainless steel. This is due to the added molybdenum content in ASTM A193 B8m Cl2. The addition of molybdenum in the A193 Grade B8 also improves resistance to pitting in chloride ion solutions. The A193 B8 Cl2 bolts demonstrate an increased tensile strength even at high temperatures.
ASTM A193 B8m Class 2 316 grade stainless steel is known to be effective in acidic environments. The use of A193 B8m grade of stainless steel proves highly effective in protecting the fasteners against corrosion caused by acids such as sulfuric, acetic, hydrochloric, formic, and tartaric, as well as acid sulfates and alkaline chlorides. The additional strain hardening operation performed on the A193 B8 Class 2 fasteners not only increases its tensile strength, but also can demonstrate the A193 B8m Class 2 Properties reduced susceptibility to galling.
A193 B8m Class 1 fasteners have been carbide solution treated, on the other hand A193 B8m Class 2 fasteners have been both carbide solution treated as well as strain hardened. The work hardening that occurs during the manufacturing process of A193 B8m Cl.2 fasteners tends to increases their tensile strength. Typically, Sa193 B8m Class 2 fasteners are differentiated by a line under the grade symbol. This line under the grade will appear either on the heads of bolts or the ends of threaded rods. In this case, A193 Gr B8m Class 2 fasteners have been marked as B8MSH with the grade symbol being underlined.
Table of Content
- ASTM A193 Bolts Studs Manufacturer Specifications
- Grade B8M Class 2 Threaded Rod Price List
- ASME SA 193 B8m CL1 Studs Size Chart
- ASTM A193 Grade B8m Class 2 Bolts Dimensions Formula
- SA 193 Grade B8M Heavy Hex Bolts Dimensions With Tolerances
- Grade B8M Bolts Size Chart In MM
- ASTM A193 B8m Class 2 Torque Chart
- A193 B8M Material Recommended Nuts And Washers
- SA193 B8m Fasteners Temperature Range
- Sa193 B8m Class 2 Stud Bolts Weight Chart
- ASME SA193 B8M Bolts Weight Chart
- ASTM A193 Grade B8m Class 2 Bolts Ready Stock
- ASTM A193 B8M Bolts Head Style
- ASTM A193 B8m socket head cap screw Dimensions
- Astm A193 B8m Class 2 Bolts Drive Style
- A193 B8m Class 1 Flat Washer Dimensions
- Thread style of Astm A193 Grade B8m Bolts
- ASTM A193 B8m hex screw size chart
- SA193 B8M Stud Bolts Dimensions Schedule
- Gr B8m Hex Nuts Dimensions
- Dimensions chart of Astm A193 Grade B8m Threaded Rod
- SA193 B8M Square Bolts Dimensions
- Size Chart of ASTM A193 B8M Nuts
- ASTM A193 B8m socket head bolt Chemical Properties
- Mechanical Properties of ASTM A193 B8m spring
| Specification Checklist | ASTM A193 Grade B8m Class 2 Bolts |
|---|---|
| Type Of ASTM A193 B8m hex head bolts Threads: | BSW And BSF & METRIC And UNC |
| Standard Dimensions Of: | ISO 14585C/ DIN 7973C/ DIN 7983C/ ISO 2009/ ASME B18.3.1M/ ASME B18.6.3 |
| Provide Multiple Payment Online Options? | Yes |
| Different Types Of ASTM A193 B8m Heavy Hex Bolts Head | Pan/ Flat/ Oval/ Phillips/ Hex Head bolts |
| Process Of Making Bolts And Nuts | Heat Treatment/ Surface Plating/ Cold Heading/ Insert tapping/ Wire Drawing |
| Available Types | Truss head/ Round/ Oval/ Hex Head/ Pan |
| Call, For ASTM A193 B8m stud bolts Free Sample | Nuts And Bolts (Some Pieces) |
| B8m Class 2 Bolts ISO And British Standard | ISO 10642 And BS 57 |
| Length Of Bolts | 3 millimeter to 200 millimeter |
Manufacturer and supplier of ASTM A193 gr B8m CL1 Threaded Rod in Both Metric and Imperial (BSW, BSF, BA, UNC & UNF) Thread Forms in Mumbai.
| Size | Grade | Material | Type Of Product | Price In INR Per KG |
|---|---|---|---|---|
| 5/8 Unc | A193 Grade B8m Class 2 | Stainless Steel | Threaded Rod | 238.00 |
| 1 Unc | Stainless Steel | Threaded Rod | 348.00 | |
| 7/8 Unc | Stainless Steel | Threaded Rod | 568.00 | |
| 1-1/2 8 Unc | Stainless Steel | Threaded Rod | 847.00 | |
| 1-3/8 8 Unc | Stainless Steel | Threaded Rod | 1220.00 |
One of India’s largest Manufacturer Of ASTM A193 Grade B8m Class 2 Bolts in India. For final ASME SA 193 B8m CL1 Studs Price List Please Call on +91(22) – 6743 8321 or drop an E-Mail : enquiry@siddhagirimetals.com.
Difference Between B8m Class 1 And Class 2?
| Type Bolts | Size Bolts | Type Of Property Class | Tensile And Yield Strength | Standard |
|---|---|---|---|---|
| ASTM A193 Grade B8m Class 2 Bolts/ Hex Nut/ Screws Threaded Rod/ Studs | Metric 4 to Metric 80 | 10.9 | 1040N / mm2 minimum | ISO 4014 (Half Thread) And ISO 4017 (Full Thread) |
| Nominal Size Of (D) | Thickness Of Head | Body Diameter Of Bolts | ASTM A193 B8M Bolts Across The Flats | ASTM A193 B8M Bolts Across Corners | ||||
|---|---|---|---|---|---|---|---|---|
| MAXIMUM (H) | MINIMUM (H) | MAXIMUM (D) | MINIMUM (D) | MAXIMUM (F) | MINIMUM (F) | MAXIMUM (C) | MINIMUM (C) | |
| M 10 | 6.063 | 6.017 | 10.000 | 9.078 | 17.000 | 15.073 | 18.048 | 17.077 |
| M 12 | 7.076 | 4.024 | 12.000 | 11.073 | 19.000 | 17.073 | 20.078 | 20.003 |
| M 14 | 9.009 | 8.051 | 14.000 | 13.073 | 22.000 | 20.067 | 24.025 | 23.035 |
| M 16 | 10.032 | 9.068 | 16.000 | 15.073 | 24.000 | 23.067 | 27.071 | 26.075 |
| M 20 | 12.088 | 12.012 | 20.000 | 19.067 | 30.000 | 29.016 | 34.064 | 32.095 |
| M 24 | 15.044 | 14.056 | 24.000 | 23.067 | 36.000 | 35.000 | 41.057 | 39.055 |
| M 30 | 19.048 | 17.092 | 30.000 | 29.067 | 46.000 | 45.000 | 53.012 | 50.085 |
| M 36 | 23.038 | 21.063 | 36.000 | 35.061 | 55.000 | 53.080 | 63.051 | 60.079 |
| M 42 | 26.097 | 25.003 | 42.000 | 41.038 | 65.000 | 62.090 | 75.006 | 71.071 |
| M 48 | 31.007 | 28.093 | 48.000 | 47.038 | 75.000 | 72.060 | 86.060 | 82.076 |
| M 56 | 36.02 | 33.080 | 56.000 | 55.026 | 85.000 | 82.020 | 98.015 | 93.071 |
| M 64 | 41.032 | 38.068 | 64.000 | 63.026 | 95.000 | 91.080 | 109.070 | 104.065 |
| M 72 | 46.045 | 43.055 | 72.000 | 71.026 | 105.000 | 101.040 | 121.024 | 115.060 |
| M 80 | 51.058 | 48.042 | 80.000 | 79.026 | 115.000 | 111.000 | 132.072 | 126.054 |
| M 90 | 57.074 | 54.026 | 90.000 | 89.013 | 130.000 | 125.050 | 150.011 | 143.007 |
| M 100 | 63.09 | 60.010 | 90.000 | 99.013 | 145.000 | 140.000 | 167.043 | 159.060 |
Diameter Of (D) | Heavy Hex Bolts Across the Flats (F) | Body Diameter Of Heavy Hex Bolts (D) | Height Of (H) Head | Heavy Hex Bolts Across the Corners © | Lengths Of (T) Thread | |||||
|---|---|---|---|---|---|---|---|---|---|---|
MAXIMUM | MINIMUM | MAXIMUM | MINIMUM | MAXIMUM | MINIMUM | MAXIMUM | MINIMUM | < 6” | > 6” | |
1/2 | 0.0875 | 0.085 | 0.0515 | 0.0482 | 0.0364 | 0.0302 | 1.001 | 0.0969 | 1.025 | 1.05 |
5/8 | 1.0062 | 1.0031 | 0.0642 | 0.0605 | 0.0444 | 0.0378 | 1.0227 | 1.0175 | 1.05 | 1.075 |
3/4 | 1.025 | 1.0212 | 0.0768 | 0.0729 | 0.0524 | 0.0455 | 1.0443 | 1.0383 | 1.075 | 2 |
7/8 | 1.0438 | 1.0394 | 0.0895 | 0.0852 | 0.0604 | 0.0531 | 1.066 | 1.0589 | 2 | 2.025 |
1 | 1.0625 | 1.0575 | 1.0022 | 0.0976 | 0.07 | 0.0591 | 1.0876 | 1.0796 | 2.025 | 2.05 |
1 1/8 | 1.0812 | 1.0756 | 1.0149 | 1.0098 | 0.078 | 0.0658 | 2.0093 | 2.0002 | 2.05 | 2.075 |
1 1/4 | 2 | 1.0938 | 1.0277 | 1.0223 | 0.0876 | 0.0749 | 2.0309 | 2.0209 | 2.075 | 3 |
1 3/8 | 2.0188 | 2.0119 | 1.0404 | 1.0345 | 0.094 | 0.081 | 2.0526 | 2.0416 | 3 | 3.025 |
1 1/2 | 2.0375 | 2.03 | 1.0531 | 1.047 | 1.0036 | 0.0902 | 2.0742 | 2.0622 | 3.025 | 3.05 |
1 3/4 | 2.075 | 2.0662 | 1.0785 | 1.0716 | 1.0196 | 1.0054 | 3.0175 | 3.0035 | 3.075 | 4 |
2 | 3.0125 | 3.0025 | 2.0039 | 1.0964 | 1.0388 | 1.0175 | 3.0608 | 3.0449 | 4.025 | 4.05 |
2 1/4 | 3.05 | 3.0388 | 2.0305 | 2.0214 | 1.0548 | 1.0327 | 4.0041 | 3.0862 | 4.075 | 5 |
2 1/2 | 3.0875 | 3.075 | 2.0559 | 2.0461 | 1.0708 | 1.0479 | 4.0474 | 4.0275 | 5.025 | 5.05 |
2 3/4 | 4.025 | 4.0112 | 2.0827 | 2.0711 | 1.0869 | 1.0632 | 4.0907 | 4.0688 | 5.075 | 6 |
3 | 4.0625 | 4.0475 | 3.0081 | 2.0961 | 2.006 | 1.0815 | 5.034 | 5.0102 | 6.025 | 6.0 |
| Normal Diameter | Size Of Nuts | Diameter In Millimeter | PITCH In Millimeter | Diameter In Inches |
|---|---|---|---|---|
| (Metric) M10 | 17 | 10 | 1.5 | 0.3937 |
| (Metric) M12 | 19 | 12 | 1.75 | 0.4724 |
| (Metric) M14 | 22 | 14 | 2 | 0.5512 |
| (Metric) M16 | 24 | 16 | 2 | 0.6299 |
| (Metric) M18 | 27 | 18 | 2.5 | 0.7087 |
| (Metric) M20 | 30 | 20 | 2.5 | 0.7874 |
| (Metric) M22 | 32 | 22 | 2.5 | 0.8661 |
| (Metric) M24 | 36 | 24 | 3 | 0.9449 |
| (Metric) M27 | 41 | 27 | 3 | 1.063 |
| (Metric) M30 | 46 | 30 | 3.5 | 1.1811 |
| (Metric) M33 | 50 | 33 | 3.5 | 1.2992 |
| (Metric) M36 | 55 | 36 | 4 | 1.4173 |
| (Metric) M39 | 60 | 39 | 4 | 1.5354 |
| (Metric) M42 | 65 | 42 | 4.5 | 1.6535 |
| (Metric) M45 | 70 | 45 | 4.5 | 1.7717 |
| (Metric) M48 | 75 | 48 | 5 | 1.8898 |
| (Metric) M52 | 80 | 52 | 5 | 2.0472 |
| (Metric) M56 | 85 | 56 | 5.5 | 2.2047 |
| (Metric) M60 | 90 | 60 | 5.5 | 2.3622 |
| (Metric) M64 | 95 | 64 | 6 | 2.5197 |
| (Metric) M68 | 100 | 68 | 6 | 2.6772 |
| (Metric) M72 | 105 | 72 | 6 | 2.8346 |
| (Metric) M76 | 110 | 76 | 6 | 2.9921 |
| (Metric) M80 | 115 | 80 | 6 | 3.1496 |
| (Metric) M85 | 120 | 85 | 6 | 3.3464 |
| (Metric) M90 | 130 | 90 | 6 | 3.5433 |
| (Metric) M100 | 145 | 100 | 6 | 3.937 |
| (Metric) M110 | 155 | 110 | 6 | 4.3307 |
| (Metric) M125 | 180 | 125 | 6 | 4.9212 |
| (Metric) M140 | 200 | 140 | 6 | 5.5118 |
| (Metric) M160 | 230 | 160 | 6 | 6.2992 |
We Stock and Supplies ASME SA193 B8M Nuts as per international standards, See A193 B8M Bolt Torque Chart and Yield Strength.
Diameter Of Bolts | Torque Weight In LBS | ||
Torques Of 70% | Torques Of 30% Initial | Torques Of 100% Final | |
1/2 | 36 | 16 | 52 |
9/16 | 53 | 23 | 75 |
5/8 | 73 | 31 | 104 |
3/4 | 129 | 55 | 184 |
7/8 | 166 | 71 | 237 |
1 | 249 | 107 | 356 |
1.1/8 | 297 | 127 | 424 |
1.1/4 | 417 | 179 | 596 |
1.3/8 | 435 | 186 | 622 |
1.1/2 | 574 | 246 | 821 |
1.9/16 | 392 | 168 | 560 |
1.5/8 | 445 | 191 | 636 |
1.3/4 | 561 | 240 | 801 |
1.7/8 | 696 | 298 | 994 |
2 | 853 | 366 | 1219 |
2.1/4 | 1234 | 529 | 1762 |
2.1/2 | 1709 | 733 | 2442 |
2.3/4 | 2300 | 986 | 3285 |
3 | 3008 | 1289 | 4297 |
A193 B8M Material Recommended Nuts And Washers
| Grade Of Bolts | Grade Of Nuts | Grade Of Washers |
|---|---|---|
| ASTM A193 Grade B8M/ B8MA/ B8M2/ B8M3 | ASTM A194 Grade 8M/ 8MA | SS 316 |
SA193 B8m Fasteners Temperature Range
Specification Of Bolts | Type Of Grade | Temperature Ratings | |||||||||
800 | 700 | 650 | 750 | 900 | 850 | 1000 | 950 | 1050 | 1100 | ||
427 | 371 | 343 | 399 | 482 | 454 | 538 | 510 | 566 | 593 | ||
ASTM A320 Bolts | L7 | 25 | 25 | ||||||||
ASTM A193 | B16 | ||||||||||
| ASTM A193 Bolts | B6 | 19.05 | 21.02 | 21.02 | 21.02 | 12 | 15.06 | ||||
B7(*) | |||||||||||
B7M | 21 | 25 | 25 | 23.06 | 12.05 | 17 | 4.05 | 8.05 | |||
(*) | 18.05 | 20 | 20 | 20 | 12.05 | 16.02 | 4.05 | 8.05 | |||
B8-CL1 | 10.05 | 11 | 11.02 | 10.08 | 10.01 | 10.03 | 9.09 | ||||
B8-CL2 | 25 | ||||||||||
(* *) | 25 | 25 | 25 | 25 | 20.05 | 23.05 | 11 | 16 | 6.03 | 2.08 | |
BS | B17B | 19.08 | 19.08 | 20 | 19.08 | 19.07 | 19.07 | 19.04 | 19.06 | 19.03 | 16.06 |
ASTM 453 Bolts | 660 | 19.09 | 20.01 | 20.02 | 20 | 19.09 | 19.09 | 19.08 | 19.08 | ||
Compare A193 B8M Heavy Hex Bolts Price List, before buying A193 B8M Material, View Dimesions and weight chart.
ASME SA193 B8M Bolts Weight Chart
| Weight Of Bolts Approximate In Kilogram | |||||||||||
| Length Of Bolts | Diameter Of Bolts | ||||||||||
| Metric 6 | Metric 5 | Metric 8 | Metric 16 | Metric 12 | Metric 10 | Metric 14 | Metric 20 | Metric 18 | Metric 22 | ||
| 16 millimeter | 0.0743 | 0.0448 | 1.0590 | 3.0211 | |||||||
| 20 millimeter | 0.0812 | 0.0598 | 1.0711 | 4.0892 | 3.0411 | ||||||
| 25 millimeter | 0.0897 | 0.0660 | 1.0871 | 5.0252 | 3.0660 | 8.0170 | |||||
| 30 millimeter | 1.0010 | 0.0737 | 2.0070 | 10.0707 | 5.0574 | 3.0912 | 9.0690 | 18.0657 | |||
| 35 millimeter | 1.0120 | 0.0804 | 2.0271 | 11.0416 | 5.0974 | 4.0223 | 10.0000 | 19.0608 | 16.0026 | ||
| 40 millimeter | 1.0230 | 0.0881 | 2.0470 | 12.0107 | 6.0410 | 4.0533 | 10.0288 | 20.0747 | 16.0667 | ||
| 45 millimeter | 1.0340 | 0.0958 | 2.0671 | 12.0821 | 6.0859 | 4.0840 | 10.0504 | 21.0739 | 17.0241 | ||
| 50 millimeter | 1.0450 | 1.0030 | 2.0870 | 13.0624 | 7.0299 | 5.0155 | 11.0261 | 22.0727 | 17.0857 | 28.0409 | |
| 55 millimeter | 1.0560 | 3.0071 | 14.0409 | 7.0740 | 5.0464 | 11.0628 | 23.0810 | 18.0868 | 30.0120 | ||
| 60 millimeter | 1.0670 | 3.0270 | 15.0244 | 8.0183 | 5.0774 | 12.0255 | 25.0126 | 20.0000 | 32.0051 | ||
| 65 millimeter | 1.0781 | 3.0472 | 16.0026 | 8.0621 | 6.0083 | 12.0626 | 26.0455 | 21.0008 | 34.0014 | ||
| 70 millimeter | 1.0890 | 3.0671 | 16.0835 | 9.0058 | 6.0394 | 12.0987 | 27.0778 | 22.0124 | 35.0461 | ||
| 75 millimeter | 2.0000 | 3.0873 | 17.0606 | 9.0506 | 6.0702 | 13.0228 | 29.0070 | 23.0256 | 39.0063 | ||
| 80 millimeter | 2.0111 | 4.0072 | 18.0248 | 10.0000 | 7.0013 | 13.0889 | 30.0303 | 24.0510 | 40.0000 | ||
| 90 millimeter | 4.0472 | 19.0841 | 10.0917 | 7.0634 | 14.0925 | 33.0113 | 26.0042 | 41.0667 | |||
| 100 millimeter | 4.0873 | 21.0459 | 11.0820 | 8.0251 | 16.0340 | 35.0714 | 27.0778 | 46.0296 | |||
| 110 millimeter | 23.0041 | 12.0723 | 8.0881 | 17.0730 | 38.0168 | 31.0250 | 47.0170 | ||||
| 120 millimeter | 24.0631 | 13.0624 | 9.0506 | 18.0797 | 40.0984 | 32.0895 | 50.0000 | ||||
| 130 millimeter | 26.0316 | 14.0535 | 10.0101 | 20.0000 | 43.0478 | 34.0722 | 52.0632 | ||||
| 140 millimeter | 27.0933 | 15.0432 | 10.0707 | 20.0833 | 46.0296 | 35.0461 | 55.0556 | ||||
| 150 millimeter | 29.0412 | 16.0340 | 11.0312 | 22.0222 | 48.0544 | 37.0594 | 58.0824 | ||||
| 160 millimeter | 31.0056 | 17.0241 | 11.0905 | 24.0272 | 50.0505 | 40.0984 | 61.0728 | ||||
| 170 millimeter | 32.0680 | 18.0116 | 12.0500 | 53.0191 | 64.0935 | ||||||
| 180 millimeter | 34.0247 | 19.0011 | 13.0123 | 26.0882 | 55.0556 | 67.0568 | |||||
| 190 millimeter | 35.0971 | 19.0920 | 13.0736 | 58.0140 | 70.0423 | ||||||
| 200 millimeter | 37.0594 | 20.0833 | 14.0327 | 29.0586 | 60.0976 | 49.0020 | 73.0529 | ||||
| 220 millimeter | 40.0650 | 22.0624 | 15.0528 | 65.0789 | 79.0365 | ||||||
| 240 millimeter | 43.0860 | 24.0510 | 16.0722 | 71.0429 | 84.0746 | ||||||
| 250 millimeter | 45.0455 | 25.0381 | 17.0301 | 74.0627 | 87.0719 | ||||||
| 260 millimeter | 47.0170 | 26.0316 | 17.0921 | 76.0923 | 90.0909 | ||||||
| 280 millimeter | 50.0505 | 28.0090 | 19.0157 | 81.0967 | 98.0039 | ||||||
| 300 millimeter | 53.0763 | 29.0940 | 20.0325 | 87.0719 | 104.0167 | ||||||
| 320 millimeter | 56.0818 | 31.0646 | 92.0593 | ||||||||
| 340 millimeter | 60.0241 | 33.0557 | 98.0039 | ||||||||
| 360 millimeter | 63.0291 | 35.0211 | 104.0167 | ||||||||
| 380 millimeter | 66.0667 | 37.0037 | 108.0696 | ||||||||
| 400 millimeter | 69.0444 | 39.0063 | 113.0636 | ||||||||
A trusted supplier & exporter of ASME SA193 B8M Bolts buy many Petrochemical, Oil & Gas companies.
ASTM A193 Grade B8m Socket Head Screws
ASTM A193 B8m Washers
Stainless Steel Grade B8m Nuts
ASTM A193 B8m Class 2 Machine Screws
ASTM A193 Bolts Studs
ASME SA193 B8m Class 1 Threaded Rod
D Nominal Size | Body Of Diameter | Head Thick. | Flats Acrosses | Bolts Corners Acrosses | ||||
|---|---|---|---|---|---|---|---|---|
| D (Maxi.0) | D (Minimum) | H (Maxi.0) | H (Minimum) | F (Maxi.0) | F (Minimum) | C (Maxi.0) | C (Mini.0) | |
| M10 | 10.000 | 9.078 | 6.063 | 6.017 | 17.000 | 15.073 | 18.048 | 17.077 |
| M12 | 12.000 | 11.073 | 7.076 | 4.024 | 19.000 | 17.073 | 20.078 | 20.003 |
| M14 | 14.000 | 13.073 | 9.009 | 8.051 | 22.000 | 20.067 | 24.025 | 23.035 |
| M16 | 16.000 | 15.073 | 10.032 | 9.068 | 24.000 | 23.067 | 27.071 | 26.075 |
| M20 | 20.000 | 19.067 | 12.088 | 12.012 | 30.000 | 29.016 | 34.064 | 32.095 |
| M24 | 24.000 | 23.067 | 15.044 | 14.056 | 36.000 | 35.000 | 41.057 | 39.055 |
| M30 | 30.000 | 29.067 | 19.048 | 17.092 | 46.000 | 45.000 | 53.012 | 50.085 |
| M36 | 36.000 | 35.061 | 23.038 | 21.063 | 55.000 | 53.080 | 63.051 | 60.079 |
| M42 | 42.000 | 41.038 | 26.097 | 25.003 | 65.000 | 62.090 | 75.006 | 71.071 |
| M48 | 48.000 | 47.038 | 31.007 | 28.093 | 75.000 | 72.060 | 86.060 | 82.076 |
| M56 | 56.000 | 55.026 | 36.02 | 33.080 | 85.000 | 82.020 | 98.015 | 93.071 |
| M64 | 64.000 | 63.026 | 41.032 | 38.068 | 95.000 | 91.080 | 109.070 | 104.065 |
| M72 | 72.000 | 71.026 | 46.045 | 43.055 | 105.000 | 101.040 | 121.024 | 115.060 |
| M80 | 80.000 | 79.026 | 51.058 | 48.042 | 115.000 | 111.000 | 132.072 | 126.054 |
| M90 | 90.000 | 89.013 | 57.074 | 54.026 | 130.000 | 125.050 | 150.011 | 143.007 |
| M100 | 90.000 | 99.013 | 63.09 | 60.010 | 145.000 | 140.000 | 167.043 | 159.060 |
Size Of Flat Washer | USS | SAE | ||||
|---|---|---|---|---|---|---|
I.D. (Inside Diameter) Of (A) | O.D. (Outside Diameter) Of (B) | Wall Thickness Of (C) | I.D. Of (A) | O.D. Of (B) | Wall Thickness Of (C) | |
#2 | - | - | - | 3/32" | 1/4" | 0.020" |
#4 | - | - | - | 1/8" | 5/16" | 0.032" |
#6 | - | - | - | 5/32" | 3/8" | 0.049" |
#8 | - | - | - | 3/16" | 7/16" | 0.049" |
| Diameter Of Stud Bolts | Studs Bolts | |
|---|---|---|
| Plain | ||
| UNC | 8UN | |
| 1/2 Inch | 19568 | - |
| 5/8 Inch | 19569 | - |
| 3/4 Inch | 19570 | |
| 7/8 Inch | 19571 | - |
| 1 Inch | 19572 | - |
| 11/8 Inch | 19573 | 13979 |
| 11/4 Inch | 19574 | 13980 |
| 13/8 Inch | 19656 | 13981 |
| 11/2 Inch | 19657 | 13982 |
| 13/4 Inch | 19658 | 13983 |
| 2 Inch | 19659 | 13984 |
| Thread Diameter Of Nominal Size Nut | Diameter Of (F) | Diameter Of (G) | Diameter Of (H) | ||||||
| Hex Nut Width Across Flats | Hex Nut Width Across Corners | Wall Thickness | |||||||
| Basic | Maximum | Minimum | Maximum | Minimum | Basic | Maximum | Minimum | ||
| 1/4 | .2500 | 7/16 | .438 | .428 | .505 | .488 | 7/32 | .226 | .212 |
| 5/16 | .3125 | 1/2 | .500 | .489 | .577 | .557 | 17/64 | .273 | .258 |
| 3/8 | .3750 | 9/16 | .562 | .551 | .650 | .628 | 21/64 | .337 | .479 |
| 7/16 | .4375 | 11/16 | .688 | .675 | .794 | .768 | 3/8 | .385 | .365 |
| 1/2 | .5000 | 3/4 | .750 | .736 | .866 | .840 | 7/16 | .448 | .427 |
| 9/16 | .5625 | 7/8 | .875 | .861 | 1.010 | .982 | 31/64 | .496 | .473 |
| 5/8 | .6250 | 15/16 | .938 | .922 | 1.083 | 1.051 | 35/64 | .559 | .535 |
| 3/4 | .7500 | 1-1/8 | 1.125 | 1.088 | 1.299 | 1.240 | 41/64 | .665 | .617 |
| 7/8 | .8750 | 1-5/16 | 1.312 | 1.269 | 1.516 | 1.447 | 3/4 | .776 | .724 |
| 1 | 1.0000 | 1-1/2 | 1.500 | 1.450 | 1.732 | 1.653 | 55/64 | .887 | .831 |
| 1-1/8 | 1.1250 | 1-11/16 | 1.688 | 1.631 | 1.949 | 1.859 | 31/32 | .999 | .939 |
| 1-3/8 | 1.3750 | 2-1/16 | 2.062 | 1.994 | 2.382 | 2.273 | 1-11/64 | 1.206 | 1.138 |
| 1-1/2 | 1.500 | 2-1/4 | 2.250 | 2.175 | 2.598 | 2.480 | 1-9/32 | 1.ASTM A194 GR. 8 | 1.245 |
| 1-5/8 | 1.6250 | 2-7/16 | 2.438 | 2.356 | 2.815 | 2.686 | 1-25/64 | 1.429 | 1.353 |
| 1-3/4 | 1.7500 | 2-5/8 | 2.625 | 2.538 | 3.031 | 2.893 | 1-1/2 | 1.540 | 1.460 |
| 2 | 2.0000 | 3 | 3.000 | 2.900 | 3.464 | 3.306 | 1-23/32 | 1.763 | 1.675 |
| 2-1/4 | 2.2500 | 3-3/8 | 3.375 | 3.263 | 3.897 | 3.719 | 1-15/16 | 1.986 | 1.890 |
| 2-1/2 | 2.5000 | 3-3/4 | 3.750 | 3.625 | 4.330 | 4.133 | 2-5/32 | 2.209 | 2.105 |
| 2-3/4 | 2.7500 | 4-1/8 | 4.125 | 3.988 | 4.763 | 4.546 | 2-3/8 | 2.431 | 2.319 |
| D | P | D
| P |
|---|---|---|---|
| M For Metric 2 | 0.4 | M For Metric 20 | 1.5/2.5 |
| M For Metric 2.5 | 0.45 | M For Metric 22 | 1.5/2.5 |
| M For Metric 3 | 0.5 | M For Metric 24 | 2/3 |
| M For Metric 3.5 | 0.6 | M For Metric 27 | 2/3 |
| M For Metric 4 | 0.7 | M For Metric 30 | 2/3.5 |
| M For Metric 5 | 0.8 | M For Metric 33 | 2/3.5 |
| M For Metric 6 | 1 | M For Metric 36 | 3/4 |
| M For Metric 8 | 1/1.25 | M For Metric 39 | 3/4 |
| M For Metric 10 | 1/1.25/1.5 | M For Metric 42 | 3/4.5 |
| M For Metric 12 | 1.25/1.5/1.75 | M For Metric 45 | 3/4.5 |
| M For Metric 14 | 1.5/2 | M For Metric 48 | 3/5 |
| M For Metric 16 | 1.5/2 | M52 | 3/5 |
| M18 | 1.5/2.5 |
| Square Bolts Dimensions | ||||||||
|---|---|---|---|---|---|---|---|---|
| Size Of Square Bolts | A (maximum) | B | C (minimum) | D | E | F Thread Length for Bolts Length | ||
| maximum | minimum | 6" and shorter | over 6" | |||||
| 1/4 Inches | 0.260 | 3/8 | 0.498 | 11/64 | 0.03 | 0.01 | 0.750 | 1.000 |
| 5/16 Inches | 0.324 | 1/2 | 0.665 | 13/64 | 0.03 | 0.01 | 0.875 | 1.125 |
| 3/8 Inches | 0.388 | 9/16 | 0.747 | 1/4 | 0.03 | 0.01 | 1.000 | 1.250 |
| 7/16 Inches | 0.452 | 5/8 | 0.828 | 19/64 | 0.03 | 0.01 | 1.125 | 1.375 |
| 1/2 Inches | 0.515 | 3/4 | 0.995 | 21/64 | 0.03 | 0.01 | 1.250 | 1.500 |
| 5/8 Inches | 0.642 | 15/16 | 1.244 | 27/64 | 0.06 | 0.02 | 1.500 | 1.750 |
| 3/4 Inches | 0.768 | 1-1/8 | 1.494 | 1/2 | 0.06 | 0.02 | 1.750 | 2.000 |
| 7/8 Inches | 0.895 | 1-5/16 | 1.742 | 19/32 | 0.06 | 0.02 | 2.000 | 2.250 |
| 1 Inches | 1.022 | 1-1/2 | 1.991 | 21/32 | 0.09 | 0.03 | 2.250 | 2.500 |
| 1-1/8 Inches | 1.149 | 1-11/16 | 2.239 | 3/4 | 0.09 | 0.03 | 2.500 | 2.750 |
| 1-1/4 Inches | 1.277 | 1-7/8 | 2.489 | 27/32 | 0.09 | 0.03 | 2.750 | 3.000 |
| 1-3/8 Inches | 1.404 | 2-1/16 | 2.738 | 29/32 | 0.09 | 0.03 | 3.000 | 3.250 |
| 1-1/2 Inches | 1.531 | 2-1/4 | 2.986 | 1 | 0.09 | 0.03 | 3.250 | 3.500 |
Nuts Diameter* In (Millimeter) | Nuts Size In (Millimeter) | Height Of Nut In (Millimeter) | ||
|---|---|---|---|---|
Jam Nuts | Hex Nuts | Nylock Nuts | ||
4 | 2 | 1.2 | 1.6 | - |
5 | 2.5 | 1.6 | 2 | - |
5.5 | 3 | 1.8 | 2.4 | 4 |
7 | 4 | 2.2 | 3.2 | 5 |
8 | 5 | 2.7 | 4 | 5 |
10 | 6 | 3.2 | 5 | 6 |
11 | 7 | 3.5 | 5.5 | - |
13 | 8 | 4 | 6.5 | 8 |
17 | 10 | 5 | 8 | 10 |
19 | 12 | 6 | 10 | 12 |
22 | 14 | 7 | 11 | 14 |
24 | 16 | 8 | 13 | 16 |
27 | 18 | 9 | 15 | 18.5 |
30 | 20 | 10 | 16 | 20 |
Know The Delivery Strength Of Your Supplier First
| France, Europe, Thailand, Qatar | ASTM a193 b8M hex bolts |
| Indonesia, Philippines, Belgium, Dammam -KSA | ASTM A193 Grade B8M Class 2 Bolts |
| USA, Bangladesh, Finland, Malaysia | ASTM A193 B8m Flange bolts |
| Germany, Thailand, Malaysia, Czechia | Grade B8M CL 2 Studs |
| South Africa, Singapore, Singapore, Bahrain | A193 Grade B8M Class 2 Threaded Rod |
| Saudi Arabia (KSA), Kuwait, Brazil, South Africa | ASTM A193 B8m rivets |
| Malaysia, Hong Kong, UAE, Oman | ASTM A193 Bolts Studs and Rods |
| Australia, UK, Nigeria, Philippines | ASTM A193 B8M Bolts |
| Turkey, Norway, Malaysia, United Arab Emirates (UAE) | Astm A193 B8m Fasteners |
| Italy, Iran, Singapore, Chile | ASTM A193 B8m set screws |
| Malaysia, Russia, Dubai, Netherlands | ASTM A193 B8m screw |
| Europe, Malaysia, UAE, United Kingdom -UK | ASTM A193 B8m u bolts |
| Element | ASTM A193 Grade B8M Bolts | ASTM A193 Grade B8MM Bolts |
| Sulfur, maximum | 0.030% | 0.030% |
| Molybdenum | 2.00 - 3.00% | |
| Carbon | 0.08% maximum | 0.08% maximum |
| Manganese | 2.00% maximum | 2.00% maximum |
| Phosphorus, maximum | 0.045% | 0.045% |
| Silicon | 1.00% maximum | 1.00% maximum |
| Chromium | 18.0 - 20.0% | 16.0 - 18.0% |
| Nickel | 8.0 - 11.0% | 10.0 - 14.0% |
| Grade | Size | RA % minimum | Yield, ksi, minimum | Tensile ksi, minimum | Elong, %, minimum |
| ASTM A193 Grade B8MM Class 2 Stud | Up to 3/4 | 45 | 95 | 110 | 15 |
| 7/8 - 1 | 45 | 80 | 100 | 20 | |
| 1-1/8 - 1-1/4 | 45 | 65 | 95 | 25 | |
| 1-3/8 - 1-1/2 | 45 | 50 | 90 | 30 | |
| ASTM A193 Grade B8M Class 1 Hex Nut | All | 50 | 30 | 75 | 30 |
| ASTM A193 Grade B7 Hex Nut | Up to 2-1/2 | 50 | 105 | 125 | 16 |
| 2-5/8 - 4 | 50 | 95 | 115 | 16 | |
| 4-1/8 - 7 | 50 | 75 | 100 | 18 | |
| ASTM A193 Grade B8M Class 2 Nut | Up to 3/4 | 35 | 100 | 125 | 12 |
| 7/8 - 1 | 35 | 80 | 115 | 15 | |
| 1-1/8 - 1-1/4 | 35 | 65 | 105 | 20 | |
| 1-3/8 - 1-1/2 | 45 | 50 | 100 | 28 | |
| ASTM A193 Grade B8MM Class 1 Hex Bolts | All | 50 | 30 | 75 | 30 |