McFarlane RD-4125 - Tire and Lug Torque Specifications; Bolt Torque Chart

800-627-8569 33 Reel Disk from McFarlane Mfg.
Tire and Lug Torque Specifi cations
Model Tire Size Ply Rating
Tire
Pressure Lug Size Lug Torque (lb.ft.)
Tire and Wheel
Weight
Min Max
RD-4112, RD-4114
RD-4116
11L-15 8 Ply 36 1/2” 75 85 33
RD-4120 12.5L-15 10 ply 44 9/16” 80 90 40
RD-4125 12.5L-15 12 ply 52 psi 9/16” 80 90 87
RD-4130 12.5L-15 18 ply 72 psi 5/8” 85 100 100
RD-4135 12.5L-15 12 ply 52 psi
9/16” 80 90 87
RD-4145 36 x 16-17.5 14 Ply 75 5/8” 85 100 123
Bolt Torque Chart
Bolt Head
Markings
No Marking
3 Radial Lines
6 Radial Lines
Bolt
Diameter
SAE Grade 2
N·m (ft-lbs)
SAE Grade 5
N·m (ft-lbs)
SAE Grade 8
N·m (ft-lbs)
1/4" 8 (6) 12 (9) 17 (12)
5/16" 13 (10) 25 (19) 36 (27)
3/8" 27 (20) 45 (33) 63 (45)
7/16" 41 (30) 72 (53) 100 (75)
1/2" 61 (45) 110 (80) 155 (115)
9/16" 95 (70) 155 (115) 220 (165)
5/8" 128 (95) 215 (160) 305 (220)
3/4" 225 (165) 390 (290) 540 (400)
7/8" 230 (170) 570 (420) 880 (650)
1" 345 (225) 850 (630) 1320 (970)