TM-9-2350-311-34-1

HULL, POWERPLANT, DRIVE CONTROLS, TRACKS, SUSPENSION, AND ASSOCIATED COMPONENTS: HOWITZER, MEDIUM, SELF-PROPELLED, 155MM

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL

SEPTEMBER 1994

TM-9-2350-311-34-1 - Page 317 of 352

TM 9-2350-311-34-1

TABLE E-1 TORQUE LIMITS FOR WET FASTENERS

SIZE

TORQUE

SAE CAP SCREW HEAD

SAE GRADE

SAE GRADE

SAE GRADE

SAE GRADE

MARKINGS

NO. 1 OR 2

NO. 5

NO. 6 OR 7

NO. 8

DIA

THREADS

DIA

IN.

PER IN.

MM

LB-FT N•M

LB-FT N•M

LB-FT

N•M

LB-FT

N•M

1/4

20

6.35

5

7

7

10

9

12

11

15

1/4

28

6.35

5

7

9

12

—

—

13

17

5/16

18

7.94

10

13

15

21

17

23

22

29

5/16

24

7.94

12

16

17

23

—

—

24

33

3/8

16

9.53

16

22

28

38

31

42

40

54

3/8

24

9.53

18

24

32

43

—

—

44

60

7/16

14

11.11

25

34

44

60

50

67

63

85

7/16

20

—

27

37

50

67

—

—

70

95

1/2

13

12.70

35

48

68

92

77

104

95

128

1/2

20

—

37

50

77

104

—

—

108

146

9/16

12

14.29

46

62

99

134

108

146

140

189

9/16

18

—

50

67

108

146

—

—

153

207

5/8

11

15.88

57

77

135

183

150

204

189

256

5/8

18

—

86

117

153

207

—

—

216

293

3/4

10

19.05

95

128

243

330

252

342

338

458

3/4

16

—

104

140

266

360

—

—

378

513

7/8

9

22.23

144

195

356

482

396

537

545

738

7/8

14

—

158

214

392

531

—

—

608

824

1

8

25.40

212

287

531

720

594

805

819

1110

1

14

—

225

305

594

805

—

—

891

1208

1-1/8

—

25.58

—

—

720

976

—

—

1152

1562

792

1074

1296

1757

1-1/4

—

31.75

—

—

—

—

—

—

1638

2221

1800

2440

1-3/8

—

34.93

—

—

1314

1782

—

—

2142

2904

1512

2050

2448

3319

1-1/2

—

38.10

—

—

1746

2367

—

—

2844

3856

1980

2684

3204

4344

E-3