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ASTM A307 Bolts Manufacturer

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ASTM A307 Bolts

ASME SA307 Grade B Hex Bolt and ASTM A307 Threaded Rod manufacturer in India

Buy directly from ASTM A307 Grade B Bolts manufacturers in India, select your size from our online inventory of A307a Carbon Steel Anchor Bolts and Stud Bolt

Detailed Information

Prashaant Steel & Alloys specializes in manufacturing large caliber ASTM A307 Bolts. Among others, the ASTM A307 Bolts we make are common thanks to their superlative quality. At Prashaant Steel & Alloys Building, we are a well-equipped manufacturing facility with state-of-the-art technologies that enable us to produce industry-appreciated ASTM A307 Bolts. At Prashaant Steel & Alloys, we believe in consumer service and so we aim to fulfill our customers’ price and quantity demands and aspirations. Our massive inventory helps deliver bulk orders to our customers in no time. We market our products to various countries around the world and store our ASTM A307 Bolts in appropriate wooden boxes to avoid any damage to our product while shipping. We also include all the documents you require with our packaging. Some of the documents that we provide with our ASTM A307 Bolts are raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report, etc.

ASTM A307 specification covers the chemical and mechanical requirements for three grades (Grades A, B, and C) of carbon steel bolts, studs, threaded rods with minimum tensile requirement of 60 ksi. However Grade C has been replaced by ASTM F1554 Grade 36 Specification. A307 specification does not cover the requirements for machine screws, thread cutting/forming screws, mechanical expansion anchors, or other similar externally threaded fasteners. When tested, sampled specimens shall adhere to specified values for chemical composition, hardness, tensile strength, yield point, elongation, and dimensions.

ASTM A307 Bolts Specifications

Exporter and supplier of M1 to M30 Metric Size SA 307 Grade B Flange Bolts in India, best price of ASTM A307 Grade A/ B/ C Hex Head Bolt and A307 All Thread Fasteners in Mumbai

ASTM A307 Grade B Heavy Hex Bolts Sizes
  • 1/2″ to 2-1/2″ diameter
ISO 4014 Grade A & B Heavy Hex Bolt
  • M1.6 to M64
ISO 4017 Grade A & B Heavy Hex Screw
  • M1.6 to M64
Standard

Manufacturer of ASTM A307 Bolts as per BS, PN, CSN, ASTM, ISO, ANSI, ASME, IS, GB, DIN, JIS, IFI, UNI, EU, and all International Standards

  • ANSI B 18.2.4 2M
  • American ASME
  • ANSI B 28.2.4 1M
  • ANSI – American National Standards Institute
  • GB/T5783, T5783/ T5782
  • International ISO
  • Indian IS
  • German DIN
  • American SAE
  • Italian UNI
  • British BS
  • Polish PN
  • Spanish CSN
  • European EU
ASTM A307 Bolts Length 3 mm to 200 mm
Standard Thread Lengths
  • For A307 bolt lengths ≤ 6″ : Thread length = (diameter x 2) + 1/4″
    eg; 1/2″ Bolt: (1/2 x 2) + 1/4″ = 1.25″ thread length
  • For A307 bolt lengths > 6″ : Thread length = (diameter x 2) + 1/2″
    eg: 1 1/4″ Bolt: (1 1/4″ x 2) + 1/2″ = 3″ thread length
Carbon Steel A307 Gr B Bolts & Screws US Threads UNK, Unified national fine (UNF), UNJC, Unified National Coarse (UNC), Constant-pitch threads, BSW, METRIC, BSF, UNR, UNJF, Unified national extra fine (UNEF)
ASTM A307 Bolts Head drive Phillips/Slot, Phillips, Slotted, and Six-Lobe, etc
Material Origin ASTM A307 Bolts are Western European. Eastern origin possible on request.
ASTM A307 Nut Bolt Surface Finish & Coating
  • Ptfe Coated Carbon Steel ASTM A307 Bolts
  • Teflon
  • Phosphate
  • Manganese Phosphate
  • Xylon
  • Self-Colour
  • Zinc Phosphate
  • Anodizing
  • Dacroment
  • Cadmium
  • Nickel plated
  • Plated zinc-nickel
  • Black oxide
  • Geometry
  • Sherardized
  • Bright Zinc Plated (BZP)
  • ZAC
  • Zinc Electro Plating
  • Hot Dip Galvanised (HDG)
MOQ 5 pieces
ASTM A307 Grade A Fasteners types Socket Hexagon Head Screw, Nut, Hexagon Nut, Screws, Pan Head Screw, Studs, Anchors, U Bolts, Washers, Structural Bolts, Spring Washers, Cap Screw, Square Nut, Sockets, Nuts, Hex Set Screw, Socket Screw, Wing Screw, Hex Head Bolts, T-Head Bolts, Wing Screw, Mushroom Head Square Neck Bolts, Hex Domed Cap Nuts, Foundation Bolts, Socket Head Cap Screw, J Bolts, Screw, Bolts, Eye Bolt, Stud Bolts, Hex Coupling Nut, Studs, Anchor Bolt, Machine Screw, Hex Nut, Allen Cap screw, Marine Anchors,
  • An Indian manufacturer of A307 Bolts, 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 A307 Bolts manufacturers in China
  • Pre-production ASTM A307 Grade B Fasteners sample before mass production

Chemical Composition Of Carbon Steel ASTM A307 Hex Bolts

Mechanical Properties Of A307 Grade B Nut Bolt

Element A307 Grade A A307 Grade B
Carbon, maximum 0.29% 0.29%
Manganese, maximum 1.20% 1.20%
Phosphorus, maximum 0.04% 0.04%
Sulfur, maximum 0.15% 0.05%

A307 Grade A

60 min

18

A307 Grade B

60 – 100

18

A307 Grade C

58 – 80

36

23

A307 Grade B Hex Nuts Dimensions

ISO Carbon Steel ASTM A307 Hex Nut NB

Across Corners

MAX Thickness

MIN Thickness

MAX Across Flats

MIN Across Flats

M 8

14.38

6.8

6.44

13

12.73

M 10

17.77

8.4

8.04

16

15.73

M 12

20.03

10.8

10.37

18

17.73

M 14

23.35

12.8

12.1

21

20.67

M 16

26.75

14.8

14.1

24

23.67

M 18

29.56

15.8

15.1

27

26.16

M 20

32.95

18

16.9

30

29.16

M 22

37.29

19.4

18.1

34

33

M 24

39.55

21.5

20.2

36

35

M 27

45.2

23.8

22.5

41

40

M 30

50.85

26.6

24.3

46

45

M 33

55.37

28.7

27.4

50

49

M 36

60.79

31

29.4

55

53.8

M 39

66.44

33.4

31.8

60

58.8

M 42

71.3

34

32.4

65

63.1

M 45

76.95

36

34.4

70

68.1

M 48

82.6

38

39.4

75

73.1

M 52

88.25

42

40.4

80

78.1

M 56

93.56

45

43.4

85

82.8

M 60

99.21

48

46.4

90

87.8

M 64

104.86

51

49.1

95

92.8

M 68

110.51

54

52.1

100

97.8

M 72 x 6

116.16

58

56.1

105

102.8

M 76 x 6

121.81

61

59.1

110

107.8

M 80 x 6

127.46

64

62.1

115

112.8

Carbon Steel A307 Gr B Washer Sizes

Carbon Steel ASTM A307 SAE Flat Washers

Size

Inside Diameter

Outside Diameter

Thickness

#2

3/32″

1/4″

.020″

#4

1/8″

5/16″

1/32″

#6

5/32″

3/8″

3/64″

#8

3/16″

7/16″

3/64″

#10

7/32″

1/2″

3/64″

1/4

9/32″

5/8″

1/16″

5/16

11/32″

11/16″

1/16″

3/8

13/32″

13/16″

1/16″

7/16

15/32″

59/64″

1/16″

1/2

17/32″

1-1/16″

3/32″

9/16

19/32″

1-3/16″

3/32″

5/8

21/32″

1-5/16″

3/32″

3/4

13/16″

1-1/2″

9/64″

7/8

15/16″

1-3/4″

9/64″

1″

1-1/16″

2″

9/64″

1-1/8

1-3/16″

2-1/4″

9/64″

1-1/4

1-5/16″

2-1/2″

5/32″

1-1/2

1-7/16″

3″

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″

ASTM A307 Grade B Bolt Torque

Bolt Size

TPI

Proof

Clamp

Tightening Torque (ft lbs)

Proof Load (lbs)

Clamp Load (lbs)

Galv+Waxed

Galv

Plain

1⁄4

20

1145

859

2

4

4

5⁄16

18

1886

1415

4

9

7

3⁄8

16

2790

2093

7

16

13

7⁄16

14

3827

2870

10

26

21

1⁄2

13

5108

3831

16

40

32

9⁄16

12

6552

4914

23

58

46

5⁄8

11

8136

6102

32

79

64

3⁄4

10

12024

9018

56

141

113

7⁄8

9

15200

11400

83

208

166

1

8

20000

15000

125

313

250

11⁄8

7

25200

18900

177

443

354

11⁄4

7

32000

24000

250

625

500

13⁄8

6

38100

28575

327

819

655

11⁄2

6

46400

34800

435

1088

870

13⁄4

5

68400

51300

748

1870

1496

2

41⁄2

90000

67500

1125

2813

2250

21⁄4

41⁄2

117000

87750

1645

4113

3291

21⁄2

4

144000

108000

2250

5625

4500

23⁄4

4

177480

133110

3050

7626

6101

3

4

214920

161190

4030

10074

8060

31⁄4

4

255600

191700

5192

12980

10384

31⁄2

4

299880

224910

6560

16400

13120

33⁄4

4

347760

260820

8151

20377

16301

4

4

398880

299160

9972

24930

19944

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