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Stainless Steel SA 320 B8 Class 2 Stud Bolt, Nuts and screws manufacturer in India

Jignesh Steel is a leading manufacturer of ASTM A320 Grade B8 Bolts. It is a type of fastener that usually contains a head at one end, a chamfer at the other, and a shaft characterized by an external helical ridge known as a ‘thread’. It is typically used to hold objects or materials together, or to position objects. It is available in various grades, classes, sizes, schedules and standards. Our product is been precisely processed under the guidance of qualified engineers and technical team with advance technology. We make sure that our product is designed by using making superior quality raw material.

A320 Gr B8 specification covers alloy steel and stainless steel bolting materials for low temperature service. It covers rolled, forged, or strain hardened bars, bolts, screws, studs, and stud bolts useful for pressure vessels, flanges, valves, and fittings. ASTM A320 Grade B8 Class 2 is superior in hardness, toughness and corrosion resistance make them ideal for structural components, automotive applications, chemical processing and power generating equipment. A320 B8 Class 2 contains a huge variety of components which can enhance various properties of the material, such as corrosion resistance and mechanical thermal. ASTM A320 B8 Class 2 is being used in a wide range of industries due to its machinability, extreme strength, cost-effectiveness and availability. A320 B8 is found in military vehicles, construction equipment, ships, pipelines, pressure vessels oil drilling platforms and in structural components.

ASTM A320 Grade B8 Fasteners

ASTM A320 Grade B8 Fasteners

ASTM A320 Grade B8 Bolts

ASTM A320 Grade B8 Bolts

ASTM A320 Grade B8 Stud Bolts

ASTM A320 Grade B8 Stud Bolts

ASTM A320 Grade B8 Hex Bolts

ASTM A320 Grade B8 Hex Bolts

ASTM A320 Grade B8 Nuts

ASTM A320 Grade B8 Nuts

ASTM A320 Grade B8 Threaded Rod

ASTM A320 Grade B8 Threaded Rod

Manufacturer of AISI 304 Stainless Steel A320 Gr B8 Hex Bolts, Studs and Threaded Rod in India, view difference between ASTM A320 B8 and A193 B8 Fasteners

ASTM A320 Grade B8 Bolts Specifications

ASTM A320 Grade B8 Class 2 Bolts Metric Sizes
  • Dia: M10 - M110
  • Length: 12 - 1200MM
ASTM A320 Grade B8 Hex Bolts Inch / Imperial Size
  • Dia: 1/2" - 4.0"
  • Length: 1/2" - 52"
Standard

Manufacturer of ASTM A320 Grade B8 Bolts as per IS, ANSI, ASTM, DIN, ISO, JIS, GB, ASME, BS, UNI, CSN, EU, IFI, PN, and all International Standards

  • ANSI B 18.2.4 2M
  • Italian UNI
  • ANSI - American National Standards Institute
  • European EU
  • Indian IS
  • American ASME
  • American SAE
  • British BS
  • Spanish CSN
  • International ISO
  • German DIN
  • Polish PN
  • ANSI B 28.2.4 1M
  • GB/T5783, GB/T5782, GB5783
ASTM A320 Grade B8 Bolts Length 3 mm to 200 mm
A320 B8 Class 2 Bolts & Screws US Threads METRIC, BSW, BSF, Unified national coarse (UNC), UNJC and UNJF threads, UNK threads, UNR, Constant-pitch, Unified national fine (UNF) and Unified national extra fine (UNEF)
ASTM A320 Grade B8 Bolts Head drive Phillips/Slot, Phillips, Slotted, Six-Lobe, etc
Material Origin ASTM A320 Grade B8 Bolts are Western European. Eastern origin possible on request.
ASTM A320 Grade B8 Nut Bolt Surface Finish & Coating Zinc, Bright Zinc Plated (BZP), Anodizing, Stainless Steel Passivated, Self-Colour, Sherardized, Hot Dip Galvanised (HDG), black oxide, Dacroment, Plated zinc-nickel, Geometry, Nickel plated
ASTM A320 Grade B8 Bolts UTS - Unified Thread Standard UNC, UNF, NPT, UNS, UNEF, NPTF
SS ASTM A320 Grade B8 Fasteners types Mushroom Head Square Neck Bolts, Foundation Bolts, Socket Screw, U Bolts, Bolts, Hex Nut, J Bolts, Sockets, T-Head Bolts, Wing Screw, Allen Cap screw, Stud Bolts, Nut, Hex Set Screw, Eye Bolt, Hexagon Nut, Cap Screw, Socket Head Cap Screw, Studs, Screws, Hex Coupling Nut, Square Nut, Spring Washers, Anchor Bolt, Machine Screw, Marine Anchors, Anchors, Wing Screw, Nuts, Structural Bolts, Hex Domed Cap Nuts, Screw, Washers, Socket Hexagon Head Screw, Studs, Pan Head Screw, Hex Head Bolts
Why Jignesh Steel?
  • An Indian manufacturer, established in Year 2008
  • Wide International network : Western Europe, Eastern Europe, Middle East, Southeast Asia, North America, and South America
  • Best Price in India compared to ASTM A320 Grade B8 Bolts manufacturers in China
  • Highly professional and technical team
  • Always final Inspection before shipment
  • Pre-production ASTM A320 B8 Class 2 Fasteners sample before mass production
  • High precision threads
MOQ 5 pieces
Preferred Stainless Steel A320 Gr B8 Nut Bolt Drawing Formats JPEG, PDF, CAD, STP, IGS
Ask for Test Certificates from ASTM A320 Grade B8 Bolts manufacturers
  • Bolt Hardness testing to ISO 6508-1
  • Manufacturer Test Certificate (MTC) as per EN 10204 / 3.1,
  • ASTM A320 Grade B8 Class 2 Bolts Tensile testing to ISO 898-1
  • Suitability for preloading to EN 14399-2
  • Nut proof load testing to ISO 898-2
  • Fasteners Tri-Roll Thread Comparators
  • SS ASTM A320 Grade B8 Bolts Charpy Impact testing in accordance with ISO 148-1
  • Suitability test for calibrated preload to EN 14399-10
  • Calibrated gauges and tools
Free Samples Yes
Delivery time Regular product is about 7-15 days
Payment Terms T/T, Western Union, Paypal, L/C or Trade Assurance 30% deposit & balance before shipping
Other ASTM A320 Grade B8 Bolts manufacturers Omni, APL, Kundan, Deepak Fasteners, Unbrako, Sundaram Precision, Infasco, Caparo, EBY Fastener, SPAX® Screws, GKW Etc.
Port of Dispatch Mumbai or Kalamboli ports in Maharashtra state of India
Find our dealers & distributors of ASTM A320 Grade B8 Bolts Perth, Thane, Hyderabad, Shah Alam, Panipat, Janeiro, Mumbai, Houston, Santiago, Vung Granada, Chennai, Gurgaon, Nagpur, Port-of-Spain, Istanbul, Muscat, Kanpur, London, Dubai, India, Pune, Noida, Baroda, Riyadh, Pimpri-Chinchwad, Courbevoie, Tehran, Patna, Bengaluru, Rajkot, Ludhiana, Montreal, Calgary, Gujarat, Lucknow, Bogota, Kochi, New Delhi, Surat, Kuwait, Lagos, Jakarta, Agra, Howrah, Indore, Singapore, Ernakulam, Ahmedabad, Doha, Navi Mumbai, Vapi, Coimbatore, Khobar, Sydney, Tau, Thiruvananthapuram, Vadodara, Caracas, Seoul, Abu Dhabi, Mexico, Ranchi, Nashik, Karachi, Bangalore, Kuala Lumpur, Manama, Sharjah, Jamshedpur, Bhubaneswar, Ankara, Brisbane, Dammam, Ahvaz, Mysuru, Jaipur, Kolkata, Dhaka, Melbourne, Gimhae-si
A320 B8 Class 2 Fasteners Application and Uses Industrial, Wind tower, Railway, Nuclear power, Construction, Electronic, and Automotive industry
ISO - International Organization for Standardization

Stainless Steel A320 Gr B8 Hex Bolts Dimensions

Stainless Steel A320 Gr B8 Heavy Hex Bolts Dimensions

 Heavy Hex Bolt Diameter  D  F  C  H
 Body Diameter    Width Across Flats   Width Across Corners   Height
 Max  Basic   Max        Min         Max  Min  Basic  Max       Min      
1/2 0.515 7/8 0.875 0.850 1.010 0.969 11/32 0.364 0.302
5/8 0.642 1-1/16 1.062 1.031 1.227 1.175 27/64 0.444 0.378
3/4 0.768 1-1/4 1.250 1.212 1.443 1.383 1/2 0.524 0.455
7/8 0.895 1-7/16 1.438 1.394 1.660 1.589 37/64 0.604 0.531
1 1.022 1-5/8 1.625 1.575 1.876 1.796 43/64 0.700 0.591
1-1/8 1.149 1-13/16 1.812 1.756 2.093 2.002 3/4 0.780 0.658
1-1/4 1.277 2 2.00 1.938 2.309 2.209 27/32 0.876 0.749
1-3/8 1.404 2-3/16 2.188 2.119 2.526 2.416 29/32 0.940 0.810
1-1/2 1.531 2-3/8 2.375 2.300 2.742 2.622 1 1.036 0.902
1-3/4 1.785 2-3/4 2.750 2.662 3.175 3.035 1-5/32 1.196 1.054
2 2.039 3-1/8 3.125 3.025 3.608 3.449 1-11/32 1.388 1.175
2-1/4 2.305 3-1/2 3.500 3.388 4.041 3.862 1-1/2 1.548 1.327
2-1/2 2.559 3-7/8 3.875 3.750 4.474 4.275 1-21/32 1.708 1.479

ASTM A320 Grade B8 Class 2 Hex Nuts Dimensions

SS ASTM A320 Grade B8 Metric Nut Dimensions Chart in mm

ASTM A320 Grade B8 Class 2 Hex Nuts Dimensions

Stainless Steel A320 Gr B8 Metric Nut Size Thread
Pitch
s e m
Width
Across
Flats
Width
Across
Corners
Height of the
ASTM A320 Grade B8 Class 2 Nut
max. min. min. max. min.
M1.6 0.35 3.20 3.02 3.41 1.30 1.05
M2 0.4 4.00 3.82 4.32 1.60 1.35
M2.5 0.45 5.00 4.82 5.45 2.00 1.75
M3 0.5 5.50 5.32 6.01 2.40 2.15
M3.5* 0.6 6.00 5.82 6.58 2.80 2.55
M4 0.7 7.00 6.78 7.66 3.2 2.9
M5 0.8 8.00 7.78 8.79 4.7 4.4
M6 1 10.00 9.78 11.05 5.2 4.9
M8 1.25 13.00 12.73 14.38 6.80 6.44
M10 1.5 16.00 15.73 17.77 8.40 8.04
M12 1.75 18.00 17.73 20.03 10.80 10.37
M14* 2 21.00 20.67 23.36 12.8 12.1
M16 2 24.00 23.67 26.75 14.8 14.1
M18* 2.5 27.00 26.16 29.56 15.8 15.1
M20 2.5 30.00 29.16 32.95 18.0 16.9
M22* 2.5 34 33 37.29 19.4 18.1
M24 3 36 35 39.55 21.5 20.2
M27* 3 41 40 45.2 23.8 22.5
M30 3.5 46 45 50.85 25.6 24.3
M33* 3.5 50 49 55.37 28.7 27.4
M36 4 55.0 53.8 60.79 31.0 29.4
M39* 4 60.0 58.8 66.44 33.4 31.8
M42 4.5 65.0 63.1 71.3 34.0 32.4
M45* 4.5 70.0 68.1 76.95 36.0 34.4
M48 5 75.0 73.1 82.6 38.0 36.4
M52* 5 80.0 78.1 88.25 42.0 40.4
M56 5.5 85.0 82.8 93.56 45.0 43.4
M60* 5.5 90.0 87.8 99.21 48.0 46.4
M64 6 95.0 92.8 104.86 51.0 49.1

Notes:

  • * Non-preferred threads according to standard.
  • All dimensions are given in mm millimeters.

A320 Grade B8 Bolts Type

ASTM A320 Grade B8 Class 2 Hex Bolts

ASTM A320 Grade B8 Class 2 Hex Bolts

Stainless Steel A320 Gr B8 Flange Bolts

Stainless Steel A320 Gr B8 Flange Bolts

SS ASTM A320 Grade B8 Square Bolts

SS ASTM A320 Grade B8 Square Bolts

ASTM A320 B8 Class 2 U Bolts

ASTM A320 B8 Class 2 U Bolts

AISI 304 Stainless Steel A320 B8 Eye Bolts

AISI 304 Stainless Steel A320 B8 Eye Bolts

A320 B8 Class 2 Heavy Hex Bolts

A320 B8 Class 2 Heavy Hex Bolts

A320 B8 Class 2 Anchor Bolts

A320 B8 Class 2 Anchor Bolts

SS ASTM A320 Grade B8 Carriage Bolts

SS ASTM A320 Grade B8 Carriage Bolts

Stainless Steel A320 Gr B8 Lag Bolts

Stainless Steel A320 Gr B8 Lag Bolts

ASTM A320 Grade B8 Class 2 Hex Head Bolts

ASTM A320 Grade B8 Class 2 Hex Head Bolts

ASTM A320 B8 Class 2 Allen Cap Bolt

ASTM A320 B8 Class 2 Allen Cap Bolt

AISI 304 Stainless Steel A320 B8 Countersunk Bolts

AISI 304 Stainless Steel A320 B8 Countersunk Bolts

ASTM A320 Grade B8 Nuts Types

ASTM A320 B8 Class 2 Lock Nuts

ASTM A320 B8 Class 2 Lock Nuts

AISI 304 Stainless Steel A320 B8 Panel Nuts

AISI 304 Stainless Steel A320 B8 Panel Nuts

ASTM A320 Grade B8 Class 2 Square Nuts

ASTM A320 Grade B8 Class 2 Square Nuts

SS ASTM A320 Grade B8 T-Nuts For Wood

SS ASTM A320 Grade B8 T-Nuts For Wood

A320 B8 Class 2 Heavy Hex Nuts

A320 B8 Class 2 Heavy Hex Nuts

ASTM A320 Grade B8 Class 2 Hex Nuts

ASTM A320 Grade B8 Class 2 Hex Nuts

Stainless Steel A320 Gr B8 Eye Nuts

Stainless Steel A320 Gr B8 Eye Nuts

SS ASTM A320 Grade B8 Jam Nuts

SS ASTM A320 Grade B8 Jam Nuts

AISI 304 Stainless Steel A320 B8 Cage Nuts and Spring Nuts

AISI 304 Stainless Steel A320 B8 Cage Nuts and Spring Nuts

A320 B8 Class 2 Wheel Nuts and Caps

A320 B8 Class 2 Wheel Nuts and Caps

ASTM A320 B8 Class 2 Wing Nuts

ASTM A320 B8 Class 2 Wing Nuts

ASTM A320 B8 Self Locking Nuts

ASTM A320 B8 Self Locking Nuts

A320 Grade B8 Stud Bolt Type

Stainless Steel A320 Gr B8 Stud Bolts

Stainless Steel A320 Gr B8 Stud Bolts

A320 B8 Class 2 Double Ended Studs

A320 B8 Class 2 Double Ended Studs

SS ASTM A320 Grade B8 Fully Threaded Studs

SS ASTM A320 Grade B8 Fully Threaded Studs

ASTM A320 B8 Class 2 Threaded Rod

ASTM A320 B8 Class 2 Threaded Rod

ASTM A320 Grade B8 Class 2 Tie Rod

ASTM A320 Grade B8 Class 2 Tie Rod

AISI 304 Stainless Steel A320 B8 Unc Stud Bolt

AISI 304 Stainless Steel A320 B8 Unc Stud Bolt

ASTM A320 Grade B8 Screws Types

304 SS ASTM A320 B8 Tek Screws

304 SS ASTM A320 B8 Tek Screws

ASTM A320 B8 Deck Screws

ASTM A320 B8 Deck Screws

304 SS ASTM A320 B8 Concrete Screws

304 SS ASTM A320 B8 Concrete Screws

Stainless Steel A320 Gr B8 Eye Screw

Stainless Steel A320 Gr B8 Eye Screw

A320 B8 Class 2 Thumb Screw

A320 B8 Class 2 Thumb Screw

ASTM A320 Grade B8 Class 2 Wood Screw

ASTM A320 Grade B8 Class 2 Wood Screw

Stainless Steel A320 Gr B8 Socket Head Cap Screw

Stainless Steel A320 Gr B8 Socket Head Cap Screw

SS ASTM A320 Grade B8 Coach Screw

SS ASTM A320 Grade B8 Coach Screw

ASTM A320 B8 Class 2 Hex Head Lag Screw

ASTM A320 B8 Class 2 Hex Head Lag Screw

ASTM A320 Grade B8 Class 2 Wing Screw

ASTM A320 Grade B8 Class 2 Wing Screw

SS ASTM A320 Grade B8 Captive Panel Screws

SS ASTM A320 Grade B8 Captive Panel Screws

A320 B8 Class 2 Hex Cap Screw

A320 B8 Class 2 Hex Cap Screw

ASTM A320 B8 Class 2 Allen Cap Screw

ASTM A320 B8 Class 2 Allen Cap Screw

AISI 304 Stainless Steel A320 B8 12-Point Flange Head Cap Screws

AISI 304 Stainless Steel A320 B8 12-Point Flange Head Cap Screws

AISI 304 Stainless Steel A320 B8 Grub Screw

AISI 304 Stainless Steel A320 B8 Grub Screw

ASTM A320 B8 Fully Threaded Screw

ASTM A320 B8 Fully Threaded Screw

304 SS ASTM A320 B8 Torx Screw

304 SS ASTM A320 B8 Torx Screw

304 SS ASTM A320 B8 Truss Head Screw

304 SS ASTM A320 B8 Truss Head Screw

ASTM A320 B8 Pan Head Screw

ASTM A320 B8 Pan Head Screw

Stainless Steel A320 Gr B8 Flat Head Screw

Stainless Steel A320 Gr B8 Flat Head Screw

A320 Grade B8 Washers Types

Stainless Steel A320 Gr B8 Cup Washer

Stainless Steel A320 Gr B8 Cup Washer

ASTM A320 Grade B8 Class 2 Lock Washer

ASTM A320 Grade B8 Class 2 Lock Washer

SS ASTM A320 Grade B8 Countersunk Washer

SS ASTM A320 Grade B8 Countersunk Washer

A320 B8 Class 2 Square Washer

A320 B8 Class 2 Square Washer

ASTM A320 B8 Class 2 Belleville Washer

ASTM A320 B8 Class 2 Belleville Washer

ASTM A320 Grade B8 Class 2 Square Plate Washer

ASTM A320 Grade B8 Class 2 Square Plate Washer

SS ASTM A320 Grade B8 Square Washer

SS ASTM A320 Grade B8 Square Washer

AISI 304 Stainless Steel A320 B8 Shim Washer

AISI 304 Stainless Steel A320 B8 Shim Washer

Polished AISI 304 Stainless Steel A320 B8 Washer

Polished AISI 304 Stainless Steel A320 B8 Washer

A320 B8 Class 2 Penny Washer

A320 B8 Class 2 Penny Washer

ASTM A320 B8 Class 2 Machine Washers

ASTM A320 B8 Class 2 Machine Washers

ASTM A320 B8 Ring Washers

ASTM A320 B8 Ring Washers

ASTM A320 Grade B8 Fasteners Application

  • Defence and Nuclear Energy Sector
  • Offshore , Sea Water & Chemical Industry
  • ASTM A320 Grade B8 Stud Bolt for Construction
  • Metric ASTM A320 Grade B8 Hex Bolts for Power Generation
  • High quality ASTM A320 Grade B8 Petrochemical Fasteners
  • High Strength ASTM A320 Grade B8 Bolts and Nuts for Automotive industry
  • Large size ASTM A320 Grade B8 Bolts for Oil & Gas Industries
  • Heavy duty ASTM A320 Grade B8 Fasteners for Heat Exchangers
  • ASTM A320 Grade B8 Nut Bolt suitable for Off-Shore Oil Drilling

Stainless Steel A320 Gr B8 Bolts Testing Tool & Equipment

  • Thread gauge and Smooth plug gauge used to check ASTM A320 Grade B8 Screws and Nuts quickly
  • Routine inspection of calipers
  • Image measuring instrument
  • Roughness tester used to test the surface finish of a ASTM A320 Grade B8 Bolts and Nuts
  • Micrometer for accurate measurement of ASTM A320 Grade B8 Bolts
  • Coordinate Measuring Machine

ASTM A320 Grade B8 Class 2 Nuts Sizes

A320 B8 Class 2 UNC Heavy Hex Nuts sizes as per ANSI/ASME B18.2.2

ASTM A320 Grade B8 Class 2 Nuts Sizes

UNC Stainless Steel A320 Gr B8 Heavy hex nut dimensions
A320 B8 Nut N/B Maximum Across Corners Min Across Corners Maximum Thickness Min Thickness Maximum Across Flats Maximum Across Flats
3/8 20.2 19.4 9.6 8.7 17.5 17
7/16 22 21.1 11.2 10.2 19 18.5
1/2 25.6 24.6 12.8 11.8 22.2 21.6
9/16 27.5 26.3 14.4 13.4 23.8 23.1
5/8 31.2 29.8 16 14.9 27 26.2
3/4 36.7 35.1 19.3 18 31.8 30.8
7/8 42.2 40.4 22.5 21.2 36.5 35.4
1 47.7 45.6 25.7 24.3 41.3 40
1 1/8 53.2 50.8 28.9 27.4 46 44.6
1 1/4 58.6 56.1 31.8 30.1 50.8 49.2
1 3/8 64.2 61.4 35 33.3 55.6 53.8
1 1/2 69.6 66.6 38.2 36.4 60.3 58.4
1 5/8 75.2 71.8 41.5 39.5 65.1 63
1 3/4 80.6 77.1 44.7 42.6 69.9 67.6
1 7/8 86.2 82.3 47.9 45.8 74.6 72.2
2 91.6 87.6 51.1 48.9 79.4 76.8
2 1/4 102.6 98.1 57.2 54.7 88.9 86.1
2 1/2 113.6 108.6 63.6 61 98.4 95.2
2 3/4 124.6 119.1 70.1 67.2 108 104.4
3 135.6 129.6 76.5 73.5 117.5 113.7

SS ASTM A320 Grade B8 Screws Sizes

BS 2470 A320 B8 Class 2 Hexagon Socket Head Screw (1936 SERIES) G

SS ASTM A320 Grade B8 Hexagon Socket Head Screw Sizes

Stainless Steel A320 Gr B8 Screw Size and Thread Dia
D
Thread Pitch Length of Thread
B
Head diameter
dk
Diameter of unthreaded shank
dw
Head Thickness
k
Width across flats
s
Radius under head
r
Hex socket depth
t
Wall thickness
w
  UNC UNF min max. min. max. min. max. min. nom. max. min. min. min.
0 - 8000% 0.5 0.096 0.093 0.6 0.0568 0.06 0.057 0.05 0.007 0.003 0.025 0.019
1 64 7200% 0.625 0.118 0.114 0.073 0.0695 0.073 0.07 0.05 0.007 0.003 0.031 0.023
2 56 6400% 0.625 0.14 0.136 0.086 0.0822 0.086 0.083 1/161/16 0.008 0.004 0.038 0.028
3 48 5600% 0.625 0.161 0.157 0.099 0.0949 0.099 0.095 5/645/64 0.008 0.004 0.044 0.032
4 40 4800% 0.75 0.183 0.178 0.112 0.1075 0.112 0.108 5/645/64 0.009 0.005 0.051 0.036
5 40 4400% 0.75 0.205 0.2 0.125 0.1202 0.125 0.121 3/323/32 0.01 0.006 0.057 0.04
6 32 4000% 0.75 0.226 0.221 0.138 0.1329 0.138 0.134 3/323/32 0.01 0.006 0.064 0.044
8 32 3600% 0.875 0.27 0.265 0.164 0.1585 0.164 0.159 1/81/8 0.012 0.007 0.077 0.052
10 24 3200% 0.875 5/165/16 0.306 0.19 0.184 0.19 0.185 5/325/32 0.014 0.009 0.09 0.061
12 24 2800% 0.875 0.343 0.332 0.216 0.21 0.216 0.201 5/325/32 0.014 0.009 0.11 0.074
1/41/4 20 2800% 1 3/83/8 0.367 0.25 0.2435 1/41/4 0.233 3/163/16 0.014 0.009 0.12 0.08
5/165/16 18 2400% 1.125 7/167/16 0.429 0.3125 0.3053 5/165/16 0.306 7/327/32 0.017 0.012 0.151 0.1
3/83/8 16 2400% 1.25 9/169/16 0.553 0.375 0.3678 3/83/8 0.368 5/165/16 0.02 0.015 0.182 0.12
7/167/16 14 2000% 1.375 5/85/8 0.615 0.4375 0.4294 7/167/16 0.43 5/165/16 0.023 0.018 0.213 0.14
43467 13 2000% 1.5 43528 0.739 0.5 0.4919 43467 0.492 43532 0.026 0.02 0.245 0.16
43724 12 1800% 1.625 0.812 0.795 0.5625 0.554 0.562 0.553 43532 0.03 0.022 0.276 0.18
43593 11 1800% 1.75 43654 0.863 0.625 0.6163 43593 0.616 43467 0.032 0.024 0.307 0.2
43528 10 1600% 2 1 0.987 0.75 0.7406 43528 0.74 43724 0.039 0.03 0.37 0.24
43654 9 1400% 2.25 1.1/8 1.111 0.875 0.8647 43654 0.864 43724 0.044 0.034 0.432 0.28
1 8 14/12 2.5 1.5/16 1.297 1 0.98861 1 0.988 43593 0.05 0.04 0.495 0.32
1.1/8 7 1200%   1.5   1.125 1.1086 1.125 1.111 43528     0.557 0.428
1.1/4 7 1200%   1.75   1.25 1.2336 1.25 1.236 43528     0.62 0.475
1.3/8 6 1200%   1.875   1.375 1.3568 1.375 1.36 43528     0.682 0.523
1.1/2 6 1200.00%   2   1.5 1.4818 1.5 1.485 1     0.745 0.57
1.3/4 5 -   2.5   1.75 1.7295 1.75 1.734 1.1/4     0.87 0.665
2 4.1/2 -   2.75   2 1.978 2 1.983 1.3/8     0.995 0.76

A320 B8 Class 2 Washer Sizes

Stainless Steel A320 Gr B8 USS Flat Washers
Size ID OD Thickness
3/16 1/4" 9/16" 3/64"
1/4 5/16" 3/4" 1/16"
5/16 3/8" 7/8" 5/64"
3/8 7/16" 1" 5/64"
7/16 1/2" 1-1/4" 5/64"
1/2 9/16" 1-3/8" 7/64"
9/16 5/8" 1-1/2" 7/64"
5/8 11/16" 1-3/4" 9/64"
3/4 13/16" 2" 5/32"
7/8 15/16" 2-1/4" 1/64"
1 1-1/16" 2-1/2" 11/64"
1-1/8 1-1/4" 2-3/4" 11/64"
1-1/4 1-3/8" 3" 11/64"
1-3/8 1-1/2" 3-1/4" 3/16"
1-1/2 1-5/8" 3-1/2" 3/16"
1-5/8 1-3/4" 3-3/4" 3/16"
1-3/4 1-7/8" 4" 3/16"
2 2-1/8" 4-1/2" 3/16"
2-1/2 2-5/8" 4-1/2" 3/16"
3 3-1/8" 5-1/2" 9/32"

ASTM A320 B8 Class 2 Bolts Sizes

ASME B18.2.1 AISI 304 Stainless Steel A320 B8 Hex Bolt size (Inch Series)

Size in Inch Stainless Steel A320 Gr B8 Hex Bolt
Diameter [in]
ASTM A320 Grade B8 Class 2 Bolt Width Across Flats SS ASTM A320 Grade B8 Bolt Head Height
Nominal [in] Min. [in] Nominal [in] Min. [in]
1/4" 0.2500 7/16"(0.438) 0.425 11/64" 0.150
5/16" 0.3125 1/2"(0.500) 0.484 7/32" 0.195
3/8" 0.3750 9/16"(0.562) 0.544 1/4" 0.226
7/16" 0.4375 5/8"(0.625) 0.603 19/64" 0.272
1/2" 0.5000 3/4"(0.750) 0.725 11/32" 0.302
5/8" 0.6250 15/16"(0.938) 0.906 27/64" 0.378
3/4" 0.7500 1-1/8"(1.125) 1.088 1/2" 0.455
7/8" 0.8750 1-5/16"(1.312) 1.269 37/64" 0.531
1" 1.0000 1-1/2"(1.500) 1.450 43/64" 0.591
1-1/8" 1.1250 1-11/16"(1.688) 1.631 3/4" 0.658
1-1/4" 1.2500 1-7/8"(1.875) 1.812 27/32" 0.749
1-3/8" 1.3750 2-1/16"(2.062) 1.994 29/32" 0.810
1-1/2" 1.5000 2-1/4"(2.250) 2.175 1" 0.902
1-5/8" 1.6250 2-7/16"(2.438) 2.356 1-3/32" 0.978
1-3/4" 1.7500 2-5/8"(2.625) 2.538 1-5/32" 1.054
1-7/8" 1.8750 2-13/16"(2.812) 2.719 1-1/4" 1.130
2" 2.0000 3"(3.000) 2.900 1-11/32" 1.175

Chemical Composition of Stainless Steel A320 Gr B8 Hex Bolts

Element Alloy A320 B8 (AISI 304) A320 B8M (AISI 316)
Carbon (c) 0.08% max 0.08% max
Manganese 2.00% max 2.00% max
Phosphorus, max 0.045% 0.045%
Sulfur, max 0.030% 0.030%
Silicon 1.00% max 1.00% max
Chromium 18.0 - 20.0% 16.0 - 18.0%
Nickel 8.0 - 11.0% 10.0 - 14.0%
Molybdenum 2.00 - 3.00%

Mechanical Properties of ASTM A320 Grade B8 Class 2 Nut Bolt

Grade Size Tensile Strength, ksi min Yield Strength, ksi, min Charpy Impact  Elong, % min RA, %, min
A320 L7 up to 21/2 125 105 -150° F 16 50
A320 B8 Class 1 all 75 30 N/A 30 50
A320 B8M Class 1 all 75 30 N/A 30 50
B8 Class 2 Up to 3/4 125 100 N/A 12 35
7/8 – 1 115 80 N/A 15 35
11/8 – 11/4 105 65 N/A 20 35
13/8 – 11/2 100 50 N/A 28 45
A320 B8M Class 2 Up to 3/4 110 95 N/A 15 45
7/8 – 1 100 80 N/A 20 45
11/8 – 11/4 95 65 N/A 25 45
13/8 – 11/2 90 50 N/A

SS ASTM A320 Grade B8 Fasteners Equivalent Grade

ASTM A320 different grades Description
A320 L7 AISI 4140/ 4142 Alloy Steel Quenched and tempered
A320 L7M AISI 4145 Alloy Steel Quenched and tempered
A320 L43 AISI 4340 Alloy Steel Quenched and tempered
A320 B8 Class 1 AISI 304, Stainless Steel carbide solution treated
A320 B8 Class 2 AISI 304, Stainless Steel carbide solution treated, strain hardened
A320 B8M Class 1 AISI 316, Stainless Steel carbide solution treated
A320 B8M Class 2 AISI 316, Stainless Steel carbide solution treated, strain hardened

ASTM A320 Grade B8 Bolts Price List

Products FOB Price US $
7/8'' Aisi 304 Stainless Steel A320 Gr B8 Hex Bolt US $0.85-$0.89/ Piece
High Tensile Hex Bolt ASTM A320 B8 Class 2 DIN933 US $0.01/ Piece
A320 B8 STUD BOLT M12 X 400MM US $0.90-$1.10/ Piece
ASTM A193 Grade B8 Full Thread Stud Bolts And Nuts For Pipe Flange US $0.10/ Piece

Call us or send us an email to sales@jigneshsteel.com for more details. Always compare our price with other ASTM A320 Grade B8 Bolts manufacturers in India or China