Other Torque Specifications; Conversion Factors - Toro Field Pro 6040 Service Manual

Other Torque Specifications

Conversion Factors

in-lb X 11.2985 = N∙cm
ft-lb X 1.3558 = N∙m
Field Pro® 6040
22267SL Rev A
Thread Size
1/4 - 20 UNC
5/16 - 18 UNC
3/8 - 16 UNC
1/2 - 13 UNC
Thread Cutting Screws (Zinc Plated Steel)
Thread Size
No. 6 - 32 UNC
No. 8 - 32 UNC
No. 10 - 24 UNC
1/4 - 20 UNC
5/16 - 18 UNC
3/8 - 16 UNC
Thread Size
7/16 - 20 UNF Grade 5
1/2 - 20 UNF Grade 5
M12 X 1.25 Class 8.8
M12 X 1.5 Class 8.8
*For steel wheels and non-lubricated fasteners
Thread Cutting Screws (Zinc Plated Steel)
Thread Size
No. 6
No. 8
No. 10
No. 12
**The hole size, material strength, material thickness, and material finish must be
considered when determining the specified torque values. All the torque values
are based on the non-lubricated fasteners.
SAE Grade 8 Steel Set Screws
Recommended Torque
Square Head
14 to 18 N·m (120 to 160 in-lb)
20 to 28 N·m (180 to 250 in-lb)
34 to 61 N·m (25 to 45 ft-lb)
81 to 122 N·m (60 to 90 ft-lb)
Type 1, Type 23 or Type F
Wheel Bolts and Lug Nuts
Threads per Inch
Type A
18
15
12
11
N∙cm X 0.08851 = in-lb
N∙m X 0.7376 = ft-lb
Page 2–11 Specifications and Maintenance: Torque Specifications
Hex Socket
7 to 9 N·m (61 to 85 in-lb)
14 to 18 N·m (125 to 165 in-lb)
20 to 28 N·m (15 to 21 ft-lb)
54 to 81 N·m (40 to 60 ft-lb)
Baseline Torque**
2 to 3 N·m (15 to 25 in-lb)
3 to 4 N·m (25 to 35 in-lb)
4 to 5 N·m (31 to 45 in-lb)
8 to 11 N·m (70 to 100 in-lb)
10 to 14 (90 to 130 in-lb)
11 to 34 (100 to 300 in-lb)
Recommended Torque*
74 to 102 N·m (55 to 75 ft-lb)
94 to 122 N·m (70 to 90 ft-lb)
94 to 122 N·m (70 to 90 ft-lb)
94 to 122 N·m (70 to 90 ft-lb)
Baseline Torque**
Type B
2 to 3 N·m (15 to
20
25 in-lb)
3 to 4 N·m (25 to
18
35 in-lb)
4 to 5 N·m (31 to
16
45 in-lb)
8 to 11 N·m (70 to
14
100 in-lb)