ASTM A193 Grade B8m Class 2 Bolts
ASME SA 193 B8m CL1 Studs, Hex Bolt and B8m nuts manufacturer in India
ASTM A193 Grade B8M Bolts
ASTM A193 B8M Hex Bolts
SA 193 Grade B8m Studs
Manufacturer and supplier of ASTM A193 gr B8m Threaded Rod in Both Metric and Imperial (BSW, BSF, BA, UNC & UNF) Thread Forms in Mumbai
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.
Table of Content
- Specification List of ASTM A193 Grade B8M Bolts
- Different ASTM A193 B8M Hex Bolts Types
- SA 193 Grade B8m Studs Price in India
- Chemical Properties of A193 B8m Bolts
- Mechanical Characteristics of ASTM A193 Gr B8m Washers
- ASTM A193 B8M Bolts Stock List
- Stainless Steel A193 B8m Fasteners Sizes
- ASTM A193 B8m Class 2 Bolt Dimensions
- Dimensions Table of A193 B8m Heavy Hex Bolts
- Size Chart of A193 B8m Bolts
- Torque Chart of ASME SA193 B8m Bolts
The cooling of the A193 B8M Equivalent bolts must be done to a temperature below its cooling transformation range. The chemical composition requirements for each alloy A193 Gr B8M Material have been presented in detail in the specification. 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 A193 B8m 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.
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.
| Standard | DIN, UNI, ISO, JIS, GB, IS, BS, ASME, ANSI, ASTM and all International Standards |
|---|---|
| Size | M2, M2.5, M3, M4, M5, M6, M8, M10, M12, M14, M16, M20, M24, M30, M36 to M160 |
| Length | 3 mm to 200 mm |
| Studs Threads: | METRIC, BSW, BSF, UNC, UNF or as required |
| Standard: | ANSI - American National Standards Institute
DIN: 931, 933, 934, 970 UTS - Unified Thread Standard : UNC, UNF, UNEF, UNS, NPT, NPTF ISO - International Organization for Standardization : ISO 4032, ISO 4033, JIS standards |
| Bolts In Form of: | Hex, Square, Round, Threading as per Gauge Etc. |
| Head drive: | Phillips, Slotted, Phillips/Slot, Six-Lobe, etc |
| Thread | Metric Coarse |
| Test Certificate: | Manufacturer Test Certificate as per EN 10204 / 3.1 |
| finishing: | Zinc (yellow, white, blue, black), black oxide, , Geometry, Dacroment, anodizing, nickel plated, plated zinc-nickel, Stainless steel: Passivated, Self-Colour, Hot Dip Galvanised (HDG), Bright Zinc Plated (BZP), Sherardized, Mechanically Applied coating and some special one like DACROMET |
| Production process | M2-M24: Cold Froging, hot forging M24-M100, machining and CNC for Customized connecting element |
| Bolts types | Hex Bolts, Flange Bolts, Hex Head Bolts, Lag Bolts, Square Bolts, Eye Bolts, U Bolts, T Bolts, Counter sunk Bolts etc. |
| Nut types | Hex Head Nut, Eye Nut, Dome Nut, Wing Nut, T Nut, Panel Nut, Lock Nut, Coupling Nut, Square Nut, Acorn Nut etc. |
| Screws types | Hex Head Cap Screws, Socket Set Screws, Anchor Screws, Blind Rivet, Socket Head Screws, Concrete Screws, Shoulder Screws, Panel Screws, Threaded Screws, Machine Screws etc. |
| Washers Types | Machine Washers, Flat Washer, Star Washers, Sealing Washer, Lock Washer, Split Washer |
| Packing: | IN BULK: canton, pallet, Small Boxs / carton / pallet, or customer request |
Stainless Steel A193 B8m Bolts and Set Screws
ASTM A193 Grade B8m Socket Head Screws
Stainless Steel Grade B8m Nuts
ASTM A193 Gr B8m Washers
316 Stainless Steel B8m Threaded Rod
ASTM A193 B8m Class 2 Machine Screws
SA 193 Grade B8m Class 2 Self Tapping Screws
ASTM A193 B8m Class 1 Self Drilling Screws
We Stock and Supplies ASME SA193 B8M Nuts as per international standards, See A193 B8M Bolt Torque Chart and Yield Strength,
| Price list of ASTM A193 B8M Bolts manufacturer in India | ASTM A193 B8m Nuts & Bolts Price in India (INR) |
|---|---|
| S.S. 316 HEX BOLTS, STAINLESS STEEL A193 GR. B8M, M16 X 80 MM LONG (FULL THREAD) WITH 1 HEAVY HEX NUT AND 2 P | 225/set |
| Element | B7 | B8M | B8MM |
| Carbon | 0.37 - 0.49% | 0.08% max | 0.08% max |
| Manganese | 0.65 - 1.10% | 2.00% max | 2.00% max |
| Phosphorus, max | 0.035% | 0.045% | 0.045% |
| Sulfur, max | 0.040% | 0.030% | 0.030% |
| Silicon | 0.15 - 0.35% | 1.00% max | 1.00% max |
| Chromium | 0.75 - 1.20% | 18.0 - 20.0% | 16.0 - 18.0% |
| Nickel | 8.0 - 11.0% | 10.0 - 14.0% | |
| Molybdenum | 0.15 - 0.25% | 2.00 - 3.00% |
Compare A193 B8M Heavy Hex Bolts Price List, before buying A193 B8M Material
| Grade | Size | Tensile ksi, min | Yield, ksi, min | Elong, %, min | RA % min |
| B7 | Up to 2-1/2 | 125 | 105 | 16 | 50 |
| 2-5/8 - 4 | 115 | 95 | 16 | 50 | |
| 4-1/8 - 7 | 100 | 75 | 18 | 50 | |
| B8M Class 1 | All | 75 | 30 | 30 | 50 |
| B8MM Class 1 | All | 75 | 30 | 30 | 50 |
| B8M Class 2 | Up to 3/4 | 125 | 100 | 12 | 35 |
| 7/8 - 1 | 115 | 80 | 15 | 35 | |
| 1-1/8 - 1-1/4 | 105 | 65 | 20 | 35 | |
| 1-3/8 - 1-1/2 | 100 | 50 | 28 | 45 | |
| B8MM Class 2 | Up to 3/4 | 110 | 95 | 15 | 45 |
| 7/8 - 1 | 100 | 80 | 20 | 45 | |
| 1-1/8 - 1-1/4 | 95 | 65 | 25 | 45 | |
| 1-3/8 - 1-1/2 | 90 | 50 | 30 | 45 |
| ASTM A193 B8m Bolts | Stainless Steel Bolts B8m ASTM Foundation Bolts |
| Stainless Steel A193 B8m Hex Bolts | ASTM A193 B8m Cl2 T-Head Bolts |
| ASTM A193 Grade B8m Heavy Hex Bolts | SA193 Gr B8m Class 1 Tap Bolts |
| Stainless Steel Grade B8m Flange Bolts | ASTM A193 B8m Cl1 Machine Bolts |
| ASTM A193 Gr B8m Square Bolts | A193 B8m Stainless T-Head Bolts |
| 316 Stainless Steel B8m Eye Bolts | ASTM A193 B8m Class 2 Nace Hex Bolts Din 933 |
| ASTM A193 B8m Class 2 Hex Head Bolts | Stainless Steel B8m ASTM Hex Bolts Din 931 |
| SA 193 Grade B8m Class 2 Round Head Bolts | ASTM A193 B8m Hex Bolts Din 934 |
| ASTM A193 B8m Class 1 Plow Bolts | Stainless Steel A193 B8m Hex Bolts Din 6914 |
| Stainless Steel Bolts B8m ASTM Shoulder Bolts | ASTM A193 Grade B8m Hex Bolts Din 912 |
| ASTM A193 B8m Cl2 Carriage Bolts | Stainless Steel Grade B8m Hex Bolts Din 601 |
| SA193 Gr B8m Class 1 Elevator Bolts | ASTM A193 Gr B8m Asme B18.2.1 Heavy Hex Bolts |
| ASTM A193 B8m Cl1 Step Bolts | 316 Stainless Steel B8m Hexagon Flange Bolts Din6921 |
| A193 B8m Stainless J Bolts | ASTM A193 B8m Class 2 Eye Bolts Din 444 |
| ASTM A193 B8m Class 2 Nace Hanger Bolts | SA 193 Grade B8m Class 2 Eye Bolts Din 580 |
| Stainless Steel B8m ASTM Draw Bolts | ASTM A193 B8m Class 1 Eye Bolts Din 444 B |
| ASTM A193 B8m Anchor Bolts | Stainless Steel Bolts B8m ASTM Eye Bolts Din 444 Lb |
| Stainless Steel A193 B8m Stove Bolts | ASTM A193 B8m Cl2 Hex Head Bolts Din 933 |
| ASTM A193 Grade B8m Lag Bolts | SA193 Gr B8m Class 1 Hex Head Bolts Din 931 |
| Stainless Steel Grade B8m 12 point Bolts | ASTM A193 B8m Carriage Bolts Din 607 |
| ASTM A193 Gr B8m Anchor Bolts | A193 B8m Stainless Shoulder Bolts Din 7379 |
| 316 Stainless Steel B8m Structural Bolts | ASTM A193 B8m Class 2 Nace Shoulder Bolts Din 9841 |
| ASTM A193 B8m Class 2 Sex Bolts | Stainless Steel B8m ASTM Carriage Bolts Din 603 |
| SA 193 Grade B8m Class 2 Socket Bolts | Stainless Steel Grade B8m Wedge Anchor Bolts |
| ASTM A193 B8m Class 1 Mushroom Head Square Neck Bolts | Stainless Steel A193 B8m Elevator Bolts Din 15237 |
| ASTM A193 B8m Cl1 Hex Head Socket Bolts Din 912 | ASTM A193 Grade B8m Anchor Bolts Din 799 |
| SA193 Gr B8m Class 1 Bolts Type | SIZE | PROPERTY CLASS | TENSILE STRENGTH | STANDARD |
|---|---|---|---|---|
| ASTM A193 B8m Hex Head Bolts / Screws | M4 to M80 | 10.9 | 1040N / mm2 min | ISO 4017 (Full Thread), ISO 4014 (Half Thread) |
A trusted supplier & exporter of ASME SA193 B8M Bolts buy many Petrochemical, Oil & Gas companies
NOMINAL SIZE (D) |
BODY DIAMETER |
HEAD THICKNESS |
ACROSS THE FLATS |
ACROSS BOLTS 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 |
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. |
| NOM., DIA. | PITCH, mm | DIAMETER, mm | DIAMETER, inch | NUT, Size |
|---|---|---|---|---|
| M10 | 1.5 | 10 | 0.3937 | 17 |
| M12 | 1.75 | 12 | 0.4724 | 19 |
| M14 | 2 | 14 | 0.5512 | 22 |
| M16 | 2 | 16 | 0.6299 | 24 |
| M18 | 2.5 | 18 | 0.7087 | 27 |
| M20 | 2.5 | 20 | 0.7874 | 30 |
| M22 | 2.5 | 22 | 0.8661 | 32 |
| M24 | 3 | 24 | 0.9449 | 36 |
| M27 | 3 | 27 | 1.063 | 41 |
| M30 | 3.5 | 30 | 1.1811 | 46 |
| M33 | 3.5 | 33 | 1.2992 | 50 |
| M36 | 4 | 36 | 1.4173 | 55 |
| M39 | 4 | 39 | 1.5354 | 60 |
| M42 | 4.5 | 42 | 1.6535 | 65 |
| M45 | 4.5 | 45 | 1.7717 | 70 |
| M48 | 5 | 48 | 1.8898 | 75 |
| M52 | 5 | 52 | 2.0472 | 80 |
| M56 | 5.5 | 56 | 2.2047 | 85 |
| M60 | 5.5 | 60 | 2.3622 | 90 |
| M64 | 6 | 64 | 2.5197 | 95 |
| M68 | 6 | 68 | 2.6772 | 100 |
| M72 | 6 | 72 | 2.8346 | 105 |
| M76 | 6 | 76 | 2.9921 | 110 |
| M80 | 6 | 80 | 3.1496 | 115 |
| M85 | 6 | 85 | 3.3464 | 120 |
| M90 | 6 | 90 | 3.5433 | 130 |
| M100 | 6 | 100 | 3.937 | 145 |
| M110 | 6 | 110 | 4.3307 | 155 |
| M125 | 6 | 125 | 4.9212 | 180 |
| M140 | 6 | 140 | 5.5118 | 200 |
| M160 | 6 | 160 | 6.2992 | 230 |
BOLT, DIA |
Torque FT-LBS |
||
30% Initial, Torque |
70%, Torque |
100% Final, Torque |
|
1/2 |
16 |
36 |
52 |
9/16 |
23 |
53 |
75 |
5/8 |
31 |
73 |
104 |
3/4 |
55 |
129 |
184 |
7/8 |
71 |
166 |
237 |
1 |
107 |
249 |
356 |
1.1/8 |
127 |
297 |
424 |
1.1/4 |
179 |
417 |
596 |
1.3/8 |
186 |
435 |
622 |
1.1/2 |
246 |
574 |
821 |
1.9/16 |
168 |
392 |
560 |
1.5/8 |
191 |
445 |
636 |
1.3/4 |
240 |
561 |
801 |
1.7/8 |
298 |
696 |
994 |
2 |
366 |
853 |
1219 |
2.1/4 |
529 |
1234 |
1762 |
2.1/2 |
733 |
1709 |
2442 |
2.3/4 |
986 |
2300 |
3285 |
3 |
1289 |
3008 |
4297 |
Know the Delivery strength of your supplier first
| France, Europe, Thailand, Qatar | ASTM a193 b8M hex bolt |
| Indonesia, Philippines, Belgium, Dammam -KSA | ASTM A193 B8M Class2 Thread rod Stud Bolt with 2 Nut |
| USA, Bangladesh, Finland, Malaysia | DIN912 ASTM A193 B8M Allen Cap Head or Hex Socket Head Bolt |
| Germany, Thailand, Malaysia, Czechia | M26 hex head bolt m8 hex bolt colored b8 b8m hex bolt |
| South Africa, Singapore, Singapore, Bahrain | ASTM A193 Grade B8m Full Thread Stud Bolts And Nuts For Pipe Flange |
| Saudi Arabia (KSA), Kuwait, Brazil, South Africa | M30 M36 M38 astm a193 grade b8m bolts |
| Malaysia, Hong Kong, UAE, Oman | ASTM A193 B8 B8m CL2 Threaded Rod |
| Australia, UK, Nigeria, Philippines | B8m standard hex head bolts stud bolt M3*18 |
| Turkey, Norway, Malaysia, United Arab Emirates (UAE) | ASTM A193 B8M Rectangle Square Head Bolts |
| Italy, Iran, Singapore, Chile | ASTM A193 B8m Stud Bolt Full Thread |
| Malaysia, Russia, Dubai, Netherlands | m8x50 torque limiting astm a193 b8m bolt |
| Europe, Malaysia, UAE, United Kingdom -UK | 8mm 10mm stud bolt astm a193 b8m |
| South Korea, NY 12203 (USA), Malaysia, Singapore | Astm a193 b8m hex bolt |
Recommended Nuts & Washers of A193 B8M Material
| Bolting Grade | Nut Grade | Washer Grade |
|---|---|---|
| ASTM A193 Grade B8M, B8MA, B8M2, B8M3 | ASTM A194 Grade 8M, 8MA | SS 316 |
Raw Material of ASTM A193 Gr B8m Studs
| Grade | Tensile Class | Raw Material Description |
|---|---|---|
| B8M | Class 1 | AISI 316 Stainless Steel, Carbide Solution Treated |
| B8M | Class 2 | AISI 316 Stainless Steel, Carbide Solution Treated and Strain Hardened |
Temperature Range of SA193 B8m Bolts
SPEC |
GRADE |
TEMPERATURE deg F (deg C) |
|||||||||
650 |
700 |
750 |
800 |
850 |
900 |
950 |
1000 |
1050 |
1100 |
||
343 |
371 |
399 |
427 |
454 |
482 |
510 |
538 |
566 |
593 |
||
ASTM A193 |
B6 |
21.2 |
21.2 |
21.2 |
19.5 |
15.6 |
12 |
||||
ASTM A193 |
B7(*) |
||||||||||
ASTM A193 |
B7M |
25 |
25 |
23.6 |
21 |
17 |
12.5 |
8.5 |
4.5 |
||
ASTM A193 |
(*) |
20 |
20 |
20 |
18.5 |
16.2 |
12.5 |
8.5 |
4.5 |
||
ASTM A193 |
B8-CL1 |
11.2 |
11 |
10.8 |
10.5 |
10.3 |
10.1 |
9.9 |
|||
ASTM A193 |
B8-CL2 |
25 |
|||||||||
ASTM A193 |
(* *) |
25 |
25 |
25 |
25 |
23.5 |
20.5 |
16 |
11 |
6.3 |
2.8 |
ASTM A193 |
B16 |
||||||||||
ASTM A320 |
L7 |
25 |
25 |
||||||||
BS |
B17B |
20 |
19.8 |
19.8 |
19.8 |
19.7 |
19.7 |
19.6 |
19.4 |
19.3 |
16.6 |
ASTM 453 |
660 |
20.2 |
20.1 |
20 |
19.9 |
19.9 |
19.9 |
19.8 |
19.8 |
||
Marking of ASME SA193 B8M Bolt
| Class | Manufacturer's Mark | Grade Symbol |
|---|---|---|
| Class 1 | Raaj Sagar | B8M |
| Class 1B | B8Y or B8MN | |
| Class 1D | B95 | |
| Class 2 | B8MSH |
ASTM A193 B8M Bolts Weight Chart
| MM THREADS AS PER IS 1363/67 | ||||||||||
| APPROXIMATE WEIGHT IN KGS FOR 100 NOS | ||||||||||
| LENGTH | DIAMETER | |||||||||
| M 5 | M 6 | M 8 | M 10 | M 12 | M 14 | M 16 | M 18 | M 20 | M 22 | |
| 16 mm | 0.448 | 0.743 | 1.590 | 3.211 | ||||||
| 20 mm | 0.598 | 0.812 | 1.711 | 3.411 | 4.892 | |||||
| 25 mm | 0.660 | 0.897 | 1.871 | 3.660 | 5.252 | 8.170 | ||||
| 30 mm | 0.737 | 1.010 | 2.070 | 3.912 | 5.574 | 9.690 | 10.707 | 18.657 | ||
| 35 mm | 0.804 | 1.120 | 2.271 | 4.223 | 5.974 | 10.000 | 11.416 | 16.026 | 19.608 | |
| 40 mm | 0.881 | 1.230 | 2.470 | 4.533 | 6.410 | 10.288 | 12.107 | 16.667 | 20.747 | |
| 45 mm | 0.958 | 1.340 | 2.671 | 4.840 | 6.859 | 10.504 | 12.821 | 17.241 | 21.739 | |
| 50 mm | 1.030 | 1.450 | 2.870 | 5.155 | 7.299 | 11.261 | 13.624 | 17.857 | 22.727 | 28.409 |
| 55 mm | 1.560 | 3.071 | 5.464 | 7.740 | 11.628 | 14.409 | 18.868 | 23.810 | 30.120 | |
| 60 mm | 1.670 | 3.270 | 5.774 | 8.183 | 12.255 | 15.244 | 20.000 | 25.126 | 32.051 | |
| 65 mm | 1.781 | 3.472 | 6.083 | 8.621 | 12.626 | 16.026 | 21.008 | 26.455 | 34.014 | |
| 70 mm | 1.890 | 3.671 | 6.394 | 9.058 | 12.987 | 16.835 | 22.124 | 27.778 | 35.461 | |
| 75 mm | 2.000 | 3.873 | 6.702 | 9.506 | 13.228 | 17.606 | 23.256 | 29.070 | 39.063 | |
| 80 mm | 2.111 | 4.072 | 7.013 | 10.000 | 13.889 | 18.248 | 24.510 | 30.303 | 40.000 | |
| 90 mm | 4.472 | 7.634 | 10.917 | 14.925 | 19.841 | 26.042 | 33.113 | 41.667 | ||
| 100 mm | 4.873 | 8.251 | 11.820 | 16.340 | 21.459 | 27.778 | 35.714 | 46.296 | ||
| 110 mm | 8.881 | 12.723 | 17.730 | 23.041 | 31.250 | 38.168 | 47.170 | |||
| 120 mm | 9.506 | 13.624 | 18.797 | 24.631 | 32.895 | 40.984 | 50.000 | |||
| 130 mm | 10.101 | 14.535 | 20.000 | 26.316 | 34.722 | 43.478 | 52.632 | |||
| 140 mm | 10.707 | 15.432 | 20.833 | 27.933 | 35.461 | 46.296 | 55.556 | |||
| 150 mm | 11.312 | 16.340 | 22.222 | 29.412 | 37.594 | 48.544 | 58.824 | |||
| 160 mm | 11.905 | 17.241 | 24.272 | 31.056 | 40.984 | 50.505 | 61.728 | |||
| 170 mm | 12.500 | 18.116 | 32.680 | 53.191 | 64.935 | |||||
| 180 mm | 13.123 | 19.011 | 26.882 | 34.247 | 55.556 | 67.568 | ||||
| 190 mm | 13.736 | 19.920 | 35.971 | 58.140 | 70.423 | |||||
| 200 mm | 14.327 | 20.833 | 29.586 | 37.594 | 49.020 | 60.976 | 73.529 | |||
| 220 mm | 15.528 | 22.624 | 40.650 | 65.789 | 79.365 | |||||
| 240 mm | 16.722 | 24.510 | 43.860 | 71.429 | 84.746 | |||||
| 250 mm | 17.301 | 25.381 | 45.455 | 74.627 | 87.719 | |||||
| 260 mm | 17.921 | 26.316 | 47.170 | 76.923 | 90.909 | |||||
| 280 mm | 19.157 | 28.090 | 50.505 | 81.967 | 98.039 | |||||
| 300 mm | 20.325 | 29.940 | 53.763 | 87.719 | 104.167 | |||||
| 320 mm | 31.646 | 56.818 | 92.593 | |||||||
| 340 mm | 33.557 | 60.241 | 98.039 | |||||||
| 360 mm | 35.211 | 63.291 | 104.167 | |||||||
| 380 mm | 37.037 | 66.667 | 108.696 | |||||||
| 400 mm | 39.063 | 69.444 | 113.636 | |||||||
ASTM A193 B8M Nuts Weight Chart
| Size | Finished Hex | Heavy Hex | Finished Jam | Heavy Hex Jam | Square | Heavy Square |
| 1/2″ Nut | 3.75 | 6.54 | 2.62 | 4.00 | 5.78 | 7.87 |
| 5/8″ Nut | 7.33 | 11.9 | 4.93 | 6.96 | 10.8 | 14.3 |
| 3/4″ Nut | 11.9 | 19.3 | 7.70 | 11.0 | 15.4 | 23.5 |
| 7/8″ Nut | 19.0 | 29.7 | 12.0 | 16.7 | 24.5 | 36.2 |
| 1″ Nut | 28.3 | 42.5 | 17.6 | 23.5 | 36.3 | 51.5 |
| 11/8″ Nut | 40.3 | 59.2 | 24.7 | 32.4 | 52.5 | 72.4 |
| 11/4″ Nut | 54.3 | 78.6 | 36.1 | 45.8 | 70.6 | 95.5 |
| 13/8″ Nut | 73.0 | 102 | 47.9 | 59.3 | 94.5 | 125.0 |
| 11/2″ Nut | 94.3 | 131 | 60.9 | 74.8 | 122 | 161 |
| 15/8″ Nut | 162 | 91.6 | ||||
| 13/4″ Nut | 151 | 204 | 100 | 114 | ||
| 17/8″ Nut | 241 | 134 | ||||
| 2″ Nut | 224 | 299 | 140 | 165 | ||
| 21/4″ Nut | 419 | 227 | ||||
| 21/2″ Nut | 564 | 332 | ||||
| 23/4″ Nut | 738 | 429 | ||||
| 3″ Nut | 950 | 545 | ||||
| 31/4″ Nut | 1194 | 651 | ||||
| 31/2″ Nut | 1526 | 851 | ||||
| 33/4″ Nut | 1812 | 1005 | ||||
| 4″ Nut | 2180 | 1200 |
Threads Per Inch and Tensile Stress Areas
| Nominal Size, inch. | Coarse Threads - UNC | Fine Threads - UNF | 8 Thread Series - 8UN | |||
|---|---|---|---|---|---|---|
| Threads / inch | Stress AreaA, in2 | Threads / inch | Stress AreaA, in2 | Threads / inch | Stress AreaA, in2 | |
| 1/4 | 20 | 0.0318 | 28 | 0.0364 | -- | -- |
| 5/16 | 18 | 0.0524 | 24 | 0.0580 | -- | -- |
| 3/18 | 16 | 0.0775 | 24 | 0.0878 | -- | -- |
| 7/16 | 14 | 0.1063 | 20 | 0.1187 | ||
| 1/2 | 13 | 0.1419 | 20 | 0.1599 | ||
| 9/16 | 12 | 0.1820 | 18 | 0.2030 | ||
| 5/8 | 11 | 0.2260 | 18 | 0.2560 | ||
| 3/4 | 10 | 0.3340 | 16 | 0.3730 | ||
| 7/8 | 9 | 0.4620 | 14 | 0.5090 | ||
| 1 | 8 | 0.6060 | 12 | 0.6630 | ||
| 1 1/8 | 7 | 0.7630 | 12 | 0.8560 | 8 | 0.790 |
| 1 1/4 | 7 | 0.9690 | 12 | 1.0730 | 8 | 1.000 |
| 1 3/8 | 6 | 1.1550 | 12 | 1.3150 | 8 | 1.233 |
| 1 1/2 | 6 | 1.4050 | 12 | 1.5810 | 8 | 1.49 |