API Oilfield Pony Rod

SIZE
(in)

ROD D.(in)

THREAD D.
(in)

LENGTH
(ft)

OUTSIDE DIAMETER 
OF PIN SHOULDER(mm)

LENGTH 
OF PIN(mm)

LENGTH OF WRENCH 
SQUARE(mm)

WIDTH OF WRENCH SQUARE(mm)

5/8"

5/8"

15/16

2
4
6
8
10
25
30

31.75

31.75

≥31.75

22.23

3/4"

3/4"

1-1/16

38.10

36.51

25.40

7/8"

7/8"

1-3/16

41.28

41.28

1"

1"

1-3/8

50.80

47.63

≥38.10

33.34

1-1/8"

1-1/8"

1-9/16

57.15

53.98

≥41.28

38.10

No.

Grade

Tensile Strength
Rel(Mpa)

Yield Strength
Rm(Mpa)

Percentage Elongation A(%)

Contraction Percentage Of Area Z(%)

1

C

620-795

≥415

≥13

≥50

2

K

620-795

≥415

≥13

≥60

3

D

795-965

≥590

≥10

≥50

4

KD

795-965

≥590

≥10

≥50

5

HL

965-1195

≥795

≥10

≥45

6

HY

965-1195

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