stellar labs TireMan 7120, Owner'S Manual

Page 4 | Stellar

®

 TM7120 TireMan Owner’s Manual

 When using the torque data in the 
chart, the following rules should be 
observed:

•  Bolt manufacturer’s particular 

specifications should be consulted 
when provided.

•  Flat washers of equal strength 

must be used.

•  All torque measurements are 

given in foot-pounds. To convert 
to inch-pounds, multiply by 12.

•  Torque values specified are for 

bolts with residual oils or no special 
lubricants applied.

•  Torque values for socket-head 

capscrews are the same as for 
Grade 8 capscrews.

•   

   Do not use these values if a different torque value or tightening 

procedure is given for a specific application.  Torque values listed are for general use 
only.  Check tightness of fasteners periodically.

•  Shear bolts are designed to fail under predetermined loads.  Always replace shear bolts 

with identical grade.

•  Fasteners should be replaced with the same or higher grade.  If higher grade fasteners 

are used, these should only be tightened to the strength of the original.

•  Tighten plastic insert or crimped steel-type lock nuts to approximately 110 percent of the 

dry torque values shown in the chart below, applied to the nut, not to the bolt head. 
Tighten toothed or serrated-type lock nuts to the full torque value.  Note: “Lubricated” 
means coated with a lubricant such as engine oil, or fasteners with phosphate and oil 
coatings.  “Dry” means plain or zinc plated without lubrication.  Tighten lubricated bolts 
to approximately 80% of dry bolts.

Size

Bolt DIA

Plain Plated Plain

Plated

Plated

(DIA-TPI) (Inches) (Ft-Lb) (Ft-Lb) (Ft-Lb) (Ft-Lb)

(Ft-Lb)

5/16-18

0.3125

17

13

25

18

22

3/8-16

0.3750

31

23

44

33

39

7/16-14

0.4375

49

37

70

52

63

1/2-13

0.5000

75

57

105

80

96

9/16-12

0.5625

110

82

155

115

139

5/8-11

0.6250

150

115

220

160

192

3/4-10

0.7500

265

200

375

280

340

7/8-9

0.8750

395

295

605

455

549

1-8

1.000

590

445

910

680

823

1 1/8-7

1.1250

795

595

1290

965

1167

1 1/4-7

1.2500

1120

840

1815

1360

1646

1 3/8-6

1.3750

1470

1100

2380

1780

2158

1 1/2-6

1.500

1950

1460

3160

2370

2865

GRADE 5

GRADE 8

GRADE 9

Torque Data Chart

NOTICE