6

IRT6912

6

9

12

IRT61912

6

19

12

IRT61916

6

19

16

7

IRT710

3.2

7

10

10.5

IRT712

3.9

7

10

12.5

IRT715

4.8

7

10

15.5

8

IRT81011

8

10

11

IRT81210

8

12

10

IRT81212

8

12

12

IRT81215

8

12

15

IRT815

7.5

8

12

15.5

9

IRT91211

9

12

11

IRT91212

9

12

12

IRT91216

9

12

16

10

IRT101312

10

13

12

IRT1012-2

7.2

10

14

12.5

IRT101416

10

14

16

IRT101420

10

14

20

IRT101515

10

15

15

IRT1015-1

11.7

10

15

15.5

IRT101520

10

15

20

IRT101525

10

15

25

12

IRT121512

12

15

12

IRT121516.5

8.1

12

15

16.5

IRT121522

12

15

22

IRT121612

12

16

12

IRT1212-1

8.5

12

16

12.5

IRT1216-1

11.2

12

16

16.5

IRT121620

12

16

20

IRT121622

12

16

22

IRT121715

12

17

15

15

IRT15815

15

18

15

IRT1516

9.9

15

18

16.5

IRT151820

15

18

20

IRT151825

15

18

25

IRT151910

15

19

10

IRT151916

15

19

16

IRT151920

15

19

20

IRT152012

15

20

12

IRT152013

15

20

13

IRT152015

15

20

15

IRT152018

15

20

18

IRT152020

15

20

20

IRT15202

15

20

23

IRT152025

15

20

35

IRT152030

15

20

30

16

IRT162220

16

22

20

17

IRT172020

17

20

20

IRT1720

13.7

17

20

20.5

IRT172030

17

20

30

IRT1730

20.5

17

20

30.5

IRT172116

17

21

16

IRT1716-1

15.1

17

21

16.5

IRT172120

17

21

20

IRT1720-1

18.8

17

21

20.5

IRT172213

17

22

13

IRT172215

17

22

15

IRT1715-2

18.3

17

22

15.5

IRT1716-2

19.4

17

22

16.5

IRT172228

17

22

28

IRT172220

17

22

20

IRT1720-2

24

17

22

20.5

IRT172223

17

22

23

IRT172225

17

22

25

IRT1725-2

30

17

22

25.5

IRT172230

17

22

30

IRT1730-2

36

17

22

30.5

IRT172232

17

22

32

IRT172413

17

24

13

IRT172420

17

24

20

18

IRT182213

18

22

13

IRT182220

18

22

20

20

IRT202416

20

24

16

IRT2016

17.5

20

24

16.5

IRT202420

20

24

20

IRT2020

22

20

24

20.5

IRT2028

3.5

20

24

28.5

IRT2010-1

14.3

20

25

10.5

IRT2015-1

21

20

25

15.5

IRT202516

20

25

16

IRT202517

20

25

17

IRT202520

28

20

25

20

IRT2020-1

20

25

20.5

IRT202523

20

25

23

IRT202525

20

25

25

IRT2025-1

34.5

20

25

25.5

IRT2026-1

36

20

25

26.5

IRT202530

20

25

30

IRT2030-1

41.5

20

25

30.5

IRT2038-1

52.5

20

25

38.5

IRT202820

20

28

20

22

IRT222616

22

26

16

IRT2216

19.1

22

26

16.5

IRT222620

22

26

20

IRT2220

24

22

26

20.5

IRT222817

22

28

17

IRT222820

22

28

20

IRT2220-1

37

22

28

20.5

IRT222823

22

28

23

IRT222830

22

28

30

IRT2230-1

55.5

24

28

30.5

23

IRT242813

23

28

13

IRT242826

23

28

26

25

IRT252920

25

29

20

IRT2520

26.5

25

29

20,5

IRT252930

25

29

30

IRT2530

40

25

29

30.5

IRT253015

25

30

15

IRT2515-1

25.5

25

30

15.5

IRT253017

25

30

17

IRT253020

25

30

20

IRT2520-1

34

25

30

20.5

IRT253023

25

30

23

IRT253025

25

30

25

IRT2525-1

42.5

25

30

25.5

IRT2526-1

44

25

30

26.5

IRT253030

25

30

30

IRT2530-1

50.5

25

30

30.5

IRT253032

25

30

32

IRT253038

25

30

38

IRT2538-1

64

25

30

38.5

IRT253222

25

32

22

IRT253230

25

32

30

26

IRT263013

26

30

13

IRT263026

26

30

26

IRT263512

26

35

12

28

IRT283217

28

32

17

IRT283220

28

32

20

IRT2820

29.5

28

32

20.5

IRT283230

28

32

30

IRT2830

44

28

32

30.5

IRT283820

28

38

20

30

IRT3012

24.5

30

35

12.5

IRT3015

30.5

30

35

15.5

IRT303517

30

35

17

IRT303520

30

35

20

IRT3020

40

30

35

20.5

IRT303523

30

35

23

IRT303525

30

35

25

IRT3025

50

30

35

25.5

IRT303530

30

35

30

IRT3030

60

30

35

30.5

IRT303722

30

35

22

IRT304216

30

42

16

32

IRT323720

32

37

20

IRT3220

42.5

32

37

20.5

IRT333730

32

37

30

IRT3230

63.5

32

37

30.5

IRT323732

32

37

32

IRT323815

32

38

15

IRT3215-1

39.5

32

38

15.5

IRT3220-1

52

32

38

20.5

IRT3225-1

64.5

32

38

25.5

IRT323825

32

38

25

IRT3230-1

77.5

32

38

30.5

IRT323845

32

38

45

IRT3245-1

115

32

38

45.5

IRT324015

32

40

15

IRT324020

32

40

20

IRT324027

32

40

27

IRT324030

32

40

30

35

IRT354015

35

40

15

IRT354020

35

40

20

IRT3520

46.5

35

40

20.5

IRT354025

35

40

25

IRT3525

58

35

40

25.5

IRT351030

35

40

30

IRT354034

35

40

34

IRT354040

35

40

40

IRT354040.5

91.5

35

40

40.5

IRT354220

35

42

20

IRT354223

35

42

23

IRT354227

35

42

27

IRT54230

35

42

30

IRT354236

35

42

36

IRT354322

35

43

22

37

IRT374232

37

42

32

38

IRT384320

38

43

20

IRT384330

38

43

30

40

IRT404517

40

45

17

IRT404520

40

45

20

IRT4020

52.5

40

45

20.5

IRT404525

40

45

25

IRT4025

65.5

40

45

25.5

IRT404530

40

45

30

IRT4030

78.5

40

45

30.5

IRT404540

40

45

40

IRT40X45X40.5

104

40

45

40.5

IRT404822

40

48

22

IRT404830

40

48

30

IRT404840

40

48

40

IRT405022

40

50

22

IRT405030

40

50

30

IRT405040

40

50

40

42

IRT424720

42

47

20

IRT424730

42

47

30

IRT424830

42

48

30

45

IRT4512

36

45

50

12.5

IRT4515

44.5

45

50

15.5

IRT455020

45

50

20

IRT4520

59

45

50

20.5

IRT455025

45

50

25

IRT4525

73

45

50

25.5

IRT455030

45

50

30

IRT4530

87.5

45

50

30.5

IRT455035

45

50

35

IRT4540

116

45

50

40.5

IRT4545

131

45

50

45.5

IRT455222

45

52

22

IRT455240

45

52

40

IRT455522

45

55

22

IRT455540

45

55

40

48

IRT485540

48

55

40

50

IRT505520

50

55

20

IRT5020-1

65

50

55

20.5

IRT505525

50

55

25

IRT5025-1

81

50

55

25.5

IRT505530

50

55

30

IRT5030-1

96.5

50

55

30.5

IRT505535

50

55

35

IRT505540

50

55

40

IRT5040-1

128

50

55

40.5

IRT505545

50

55

45

IRT5045-1

144

50

55

45.5

IRT505550

50

55

50

IRT5050-1

160

50

55

50.5

IRT505822

50

58

22

IRT505830

50

58

30

IRT505840

50

58

40

IRT505845

50

58

45

IRT506025

50

60

25

IRT5025

169

50

60

25.5

IRT506028

50

60

28

IRT506030

50

60

30

IRT5030

205

50

60

30.5

IRT506040

50

60

40

IRT5040

270

50

60

40.5

IRT506045

50

60

45

IRT506050

50

60

50

54

IRT546345

54

63

45

55

IRT556025

55

60

25

IRT556030

55

60

30

IRT556035

55

60

35

IRT556238

55

62

38

IRT556325

55

63

25

IRT556345

55

63

45

IRT556525

55

65

25

IRT556528

55

65

28

IRT556530

55

65

30

IRT556545

55

65

45

IRT556550

55

65

50

IRT556560

55

65

60

60

IRT606825

60

68

25

IRT606834

60

68

34

IRT606835

60

68

35

IRT606845

60

68

45

IRT607025

60

70

25

IRT607028

60

70

28

IRT607030

60

70

30

IRT607040

60

70

40

IRT607045

60

70

45

IRT607050

60

70

50

IRT607060

60

70

60

65

IRT657225

65

72

25

IRT657235

65

72

35

IRT657325

65

73

25

IRT657335

65

73

35

IRT657528

65

75

28

IRT657530

65

75

30

75

IRT757535

75

75

35

IRT757560

75

75

60

70

IRT708025

70

80

25

IRT708030

70

80

30

IRT708035

70

80

35

IRT708040

70

80

40

IRT708050

70

80

50

IRT708054

70

80

54

IRT708060

70

80

60

75

IRT758345

75

83

45

IRT758525

75

85

25

IRT758530

75

85

30

IRT758535

75

85

35

IRT758554

75

85

54

IRT759032

75

90

32

80

IRT809025

80

90

25

IRT809030

80

90

30

IRT809035

80

90

35

IRT809040

80

90

40

IRT809054

80

90

54

85

IRT859526

85

95

26

IRT859536

85

95

36

IRT859545

85

95

45

IRT8510035

85

100

35

90

IRT9010026

90

100

26

British system

9.525

IRB68

9.525

14.288

12.95

12.7

IRB812

12.7

17.462

19.3

IRB812-1

12.7

19.05

19.3

15.875

IRB1012

15.875

22.225

19.3

20

IRB121616

20

25.4

25.65

22.225

IRB1416

22.225

28.575

25.65

28.575

IRB1820

28.575

34.925

32

31.75

IRB2020

31.75

38.1

32

8

LRT 81212.5

8

12

12.5

LRT 81210

8

12

10

LRT 8128

8

12

8

9

LRT 91212

9

12

12

10

LRT 101413

10

14

13

12

LRT 121616

12

16

16

15

LRT151916

15

19

16

17

LRT 172016

17

20

16

LRT 172116

17

21

16

20

LRT 202416

20

24

16

LRT 202517

20

25

17

LRT 202525

20

25

25

LRT 202526.5

20

25

26.5

25

LRT 252920

25

29

20

LRT 252930

25

29

30

30

LRT 303517

30

35

17

LRT 303520

30

35

20

32

LRT 323720

32

37

20

LRT 324020

32

40

20

LRT 324036

32

40

36

35

LRT 354020

35

40

20

LRT 354030

35

40

30

40

LRT 404520

40

45

20

LRT 404530

40

45

30

LRT 404820

40

48

20

LRT 404840

40

48

40

50

LRT 505525

50

55

25

LRT 506025.5

50

60

25.5

54

LRT 546025

54

60

25

55

LRT 556025

55

60

25

LRT 556525

55

65

25

60

LRT 606825

60

68

25

LRT 606845

60

68

45

65

LRT657335

65

73

35

LRT 657445

65

74

45

75

LRT 758525

75

85

25

80

LRT809054

80

90

54

9.525(3.8)

LRB 61012

18.5

3/8

9.525

3/8

15.875

19.300

12.700(1/2)

LRB81212

23.5

1/2

12.700

3/4

19.050

19.300

LRB81216

31

1/2

12.700

3/4

19.050

25.650

15.875(5/8)

LRB101412

28

5/8

15.875

7/8

22.225

19.300

LRB101416

37.5

5/8

15.875

7/8

22.225

25.650

19.050(3/4)

LRB121612

33

3/4

19.050

1

25.400

19.300

LRB121616

44

3/4

19.050

1

25.400

25.650

22.225(7/8)

LRB141816

50

7/8

22.225

11/8

28.575

25.650

LRB141820

62

7/8

22.225

11/8

28.575

32.000

25.400(1)

LRB162016

56

1

25.4

11/4

31.750

25.650

LRB162020

72

1

25.4

11/4

31.750

32.000

28.575(11/8)

LRB182216

63

11/8

28.575

13/8

34.925

25.650

LRB182220

77

11/8

28.575

13/8

34.925

32.000

31.750(11/4)

LRB 202406

71

11/4

31.750

11/2

38.100

25.650

LRB 202420

86

11/4

31.750

11/2

38.100

32.000

34.925(13/8)

LRB 222616

77

13/8

34.925

11/2

41.275

25.650

LRB 222620

96

13/8

34.925

15/8

41.275

32.000

38.100(11/2)

LRB242816

80

11/2

38.100

15/8

44.450

25.650

LRB 242820

100

11/2

38.10

13/4

44.450

32.000

LRB 243020

155

11/2

38.100

13/4

47.625

32.000

41.275(15/8)

LRB 263212

135

15/8

41.275

2

50.800

25.650

LRB 263220

170

15/8

41.275

2

50.800

32.000

44.450(13/4)

LRB 283624

300

13/4

44.450

21/4

57.450

38.350

LRB 283628

345

13/4

44.450

21/4

57.450

44.700

50.800(2)

LRB 324024

335

2

50.800

21/2

63.500

38.350

LRB 324028

390

2

50.800

21/2

63.500

44.700

57.150(21/4)

LRB 364424

375

21/4

57.150

23/4

69.850

38.350

LRB364428

440

21/4

57.150

23/4

69.850

44.700

63.500(21/2)

LRB404824

410

21/2

63.500

3

76.500

38.350

LRB 404828

480

21/2

63.500

3

76.500

44.700

69.850(23/4)

LRB445228

530

23/4

69.850

31/4

82.550

44.700

LRB445232

600

23/4

69.850

31/4

82.550

51.050

76.200  (3)

LRB 485632

640

3

76.200

31/2

88.900

51.050

82.550(31/4)

LRB 526032

690

31/4

82.550

33/4

95.250

51.050

88.900  (31/2)

LRB566432

750

31/2

88.900

4

101.600

51.050