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ASTM A320 Grade B8m Bolts Manufacturer

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ASTM A320 Grade B8m Bolts

ASTM A320 B8m Class 2 Stud Bolts and Nuts manufacturer in India

ASTM A320 Grade B8m Bolts Suppliers & Exporter in India.

Detailed Information

Prashaant Steel & Alloys is a leading producer of ASTM A320 Grade B8m Bolts and a high-calibre retailer. Thanks to their excellent resistivity properties, the ASTM A320 Grade B8m Bolts that we manufacture are extremely popular in the industry. We are considered to have the excellent quality of ASTM A320 Grade B8m Bolts at Prashaant Steel & Alloys, which is why we use the highest quality of the raw materials used in the production processes. The ASTM A320 Grade B8m Bolts provide outstanding resistance to corrosion and oxidation, which opens its doors to a wide range of applications. 

ASTM A320 B8m is similar to ASTM A320 B8 but instead it is manufactured from stainless steel 316 as opposed to stainless steel 304. Although type 316 stainless steel is more expensive, it offers superior corrosion resistance compared to 304 stainless steels. A320 B8m Class 2 fasteners require an additional strain hardening operation. ASTM A320 B8m Class 2 does not require an impact test. ASTM A320 B8m exhibits improved chloride corrosion resistance due to the addition of molybdenum. It offers acceptable corrosion resistance to the marine atmosphere when pitting corrosion is concerned. It provides good chemical resistance to most agents used in the petrochemical, food, dairy and paper industries.  It is widely used for an application which requires corrosion resistance or good elevated temperature strength. ASTM A320 B8m Class 2 exhibits excellent ductility and it can be easily roll formed, deep drawn and bent, in the annealed condition.  Annealing is important to restore ductility and to lower hardness for subsequent forming operations.

ASTM A320 Grade B8m Bolts Specifications

A320 B8m Class 2 Bolts Metric Size range
  • Dia: M10 – M110
  • Length: 12 – 1200MM
ASTM A320 Grade B8m Hex Bolts Size Inch / Imperial
  • Dia: 1/2″ – 4.0″
  • Length: 1/2″ – 52″
Standard Manufacturer of ASTM A320 Grade B8m Bolts as per JIS, GB, IS, CSN, ANSI, ASTM, DIN, ASME, IFI, ISO, PN, UNI, BS, EU, and all International Standards

  • German DIN
  • ANSI B 18.2.4 2M
  • Indian IS
  • ANSI B 28.2.4 1M
  • Spanish CSN
  • GB/T5783, GB/T5782, GB5783
  • American ASME
  • European EU
  • International ISO
  • American SAE
  • Italian UNI
  • Polish PN
  • British BS
  • ANSI – American National Standards Institute
ASTM A320 Grade B8m Bolts Length 3 mm to 200 mm
AISI 316 Stainless Steel A320 B8m Bolts & Screws US Threads Unified national extra fine (UNEF), METRIC, Unified national coarse (UNC), Unified national fine (UNF), BSW, UNJC, UNJF, UNK, BSF, UNR, Constant-pitch threads
ASTM A320 Grade B8m Bolts Head drive Phillips/Slot, Phillips, Slotted, Six-Lobe, etc
Material Origin ASTM A320 Grade B8m Bolts are Western European. Eastern origin possible on request.
ASTM A320 B8m Class 2 Fasteners types Screws, Bolts, Sockets, Wing Screw, J Bolts, Nut, Spring Washers, Hexagon Nut, Square Nut, Foundation Bolts, Cap Screw, Socket Screw, Socket Head Cap Screw, Machine Screw, Nuts, Anchor Bolt, Hex Coupling Nut, Eye Bolt, Hex Nut, Socket Hexagon Head Screw, Studs, Hex Domed Cap Nuts, Studs, Pan Head Screw, Structural Bolts, Stud Bolts, Screw, U Bolts, Allen Cap screw, T-Head Bolts, Washers, Anchors, Hex Head Bolts, Mushroom Head Square Neck Bolts, Wing Screw, Hex Set Screw, Marine Anchors
ASTM A320 Grade B8m Bolts UTS – Unified Thread Standard UNC, UNS, UNEF, NPT, UNF, NPTF
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 B8m Bolts manufacturers in China
  • Highly professional and technical team
  • Always final Inspection before shipment
  • Pre-production ASTM A320 B8m Fasteners sample before mass production
  • High precision threads
MOQ 5 pieces
Preferred SS ASTM A320 Grade B8m Nut Bolt Drawing Formats JPEG, PDF, CAD, STP, IGS
ASTM A320 Grade B8m Nut Bolt Surface Finish & Coating Sherardized, Hot Dip Galvanised (HDG), Zinc, Self-Colour, Bright Zinc Plated (BZP), Geometry, Plated zinc-nickel, Nickel plated, Anodizing, black oxide, Dacroment, Stainless Steel Passivated
Ask for Test Certificates from ASTM A320 Grade B8m Bolts manufacturers
  • Manufacturer Test Certificate (MTC) as per EN 10204 / 3.1,
  • A320 B8m Class 2 Bolts Tensile testing to ISO 898-1
  • Hardness testing to ISO 6508-1
  • Suitability for preloading to EN 14399-2
  • Tri-Roll Thread Comparators
  • ASTM A320 B8m Class 2 Bolts Charpy Impact testing in accordance with ISO 148-1
  • Suitability test for calibrated preload to EN 14399-10
  • Nut proof load testing to ISO 898-2
  • Calibrated gauges and tools
Free Samples Yes
Delivery time Regular product is about 7-15 days
Port of Dispatch Mumbai or Kalamboli ports in Maharashtra state of India
ISO – International Organization for Standardization
  • ISO 4014 Hex Bolt
  • ISO 4017 Hex Head Screw
  • ISO 4032 Nut
  • ISO 4162 Flange Bolts
  • ISO 4161 Flange Nut

Chemical Composition Of SS ASTM A320 Grade B8m Hex Bolts

Element Alloy

A320 B8M (AISI 316)

A320 B8 (AISI 304)

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

16.0 – 18.0%

18.0 – 20.0%

Nickel

10.0 – 14.0%

8.0 – 11.0%

Molybdenum

2.00 – 3.00%

Mechanical Properties Of A320 B8m Class 2 Nut Bolt

Grade

Size

Tensile Strength, ksi min

Yield Strength, ksi, min

Charpy Impact

Elong, % min

RA, %, min

A320 B8M Class 1

all

75

30

N/A

30

50

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

ASTM A320 B8m Class 2 Fasteners Equivalent Grade

ASTM A320 different grades Description
A320 B8M Class 1 AISI 316, SS carbide solution treated
A320 B8M Class 2 AISI 316, SS carbide solution treated, strain hardened

AISI 316 Stainless Steel A320 B8m Washer Sizes

SS ASTM A320 Grade B8m 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 B8m Bolts Sizes

ASME B18.2.1 SA320 B8m SS 316 Hex Bolt size (Inch Series)

Size in Inch

SS ASTM A320 Grade B8m Hex Bolt

Diameter [in]

A320 B8m Class 2 Bolt Width Across Flats

ASTM A320 B8m Class 2 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

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