Page 4 | Stellar
®
96-10-24 Shuttle 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 giv-
en 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. If special lubri-
cants of high stress ability, such as
Never-Seez compound graphite
and oil, molybdenum disulphite,
colloidal copper or white lead are applied, multiply the torque values in the charts by the
factor .90. The use of Loctite does not affect the torque values listed above.
• 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.
• Sheer 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
