Service Manual

GreensPro 1200 Page 2 - 7 Product Records and Maintenance
Product Records
and Maintenance
Other Torque Specifications
Conversion Factors
SAE Grade 8 Steel Set Screws
T
h
r
e
a
d
S
i
z
e
Recommended Torque
Thread Size
Square Head Hex Socket
1/4 -- 20 UNC 140 + 20 in--lb 73 + 12 in--lb
5/16 -- 18 UNC 215 + 35 in--lb 145 + 20 in--lb
3/8 -- 16 UNC 35 + 10 ft--lb 18 + 3ft--lb
1/2 -- 13 UNC 75 + 15 ft--lb 50 + 10 ft--lb
Thread Cutting Screws
(Zinc Plated Steel)
Type 1, Type 23, or Type F
Thread Size Baseline Torque*
No. 6 -- 32 UNC 20 + 5in--lb
No. 8 -- 32 UNC 30 + 5in--lb
No. 10 -- 24 UNC 38 + 7in--lb
1/4 -- 20 UNC 85 + 15 in--lb
5/16 -- 18 UNC 110 + 20 in--lb
3/8 -- 16 UNC 200 + 100 in--lb
Wheel Bolts and Lug Nuts
Thread Size
Recommended Torque**
7/16 -- 20 UNF
Grade 5
65 + 10 ft--lb 88 + 14 N·m
1/2 -- 20 UNF
Grade 5
80 + 10 ft--lb 108 + 14 N·m
M12 X 1.25
Class 8.8
80 + 10 ft--lb 108 + 14 N·m
M12 X 1.5
Class 8.8
80 + 10 ft--lb 108 + 14 N·m
** For steel wheels and non--lubricated fasteners.
Thread Cutting Screws
(Zinc Plated Steel)
Thread
S
i
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e
Threads per Inch
B
a
s
e
l
i
n
e
T
o
r
q
u
e
*
Size
Type A Type B
Baseline Torque*
No. 6 18 20 20 + 5in--lb
No. 8 15 18 30 + 5in--lb
No. 10 12 16 38 + 7in--lb
No. 12 11 14 85 + 15 in--lb
*Hole size, material strength, material thickness, and
finish must be considered when determining specific
torque values. All torque values are based on
non-lubricated fasteners.
in-lb x 11.298 = N·cm
in-lb x 0.1130 = N·m
ft-lb x 1.3558 = N·m
N·cm x 0.08851 = in-lb
N·m x 8.851 = in-lb
N·m x 0.7376 = ft-lb