Tightening Hardware; Metric Bolt And Screw Torque Values - Fast UT3P25 Owner's Manual

TIGHTENING HARDWARE

Check the tightness of ALL BOLTS, U-BOLTS, and CAP SCREWS after the first 10-15 hours of
operation and again at end of the first week (50 hours) of operation. Tighten all bolts to torques
specified unless otherwise noted. Check tightness of hardware periodically.

Metric Bolt and Screw Torque Values

Screw Class 4.8
Size
Lubricated Dry
3 4
N-m lb.-in. N-m
M6 4.7 42 6
M8 11.5 102 14.5
N-m
M10 23 204 29
N-m lb.-ft.
M12 40 29.5 50
M14 63 46 80
M16 100 74 125
M18 135 100 170
M20 190 140 245
M22 265 195 330
M24 330 245 425
M27 490 360 625
M30 660 490 850
M33 900 665 1150 850
M36 1150 850 1450 1075 2250
Torque values listed are for general use only, based on the
strength of the bolt or screw. DO NOT use these values if a
different torque value or tightening procedure is given for a
specific application. For stainless steel fasteners or for nuts on
U-bolts, see the tightening instructions for the specific
application. Tighten plastic insert or crimped steel type lock
nuts by turning the nut to the dry torque shown in the chart,
unless different instructions are given for the specific
application.
"Lubricated" means coated with a lubricant such as engine oil, fasteners with phosphate and oil coatings,
3
or M20 and larger fasteners with JDM F13C, F13F or F13J zinc flake coating.
"Dry" means plain or zinc plated without any lubrication, or M6 to M18 fasteners with JDM F13B, F13E or
4
F13H zinc flake coating.
TIGHTENING HARDWARE
Figure 20: Common metric bolt grade markings
Class 8.8 or 9.8
Lubricated 3 Dry
lb.-in. N-m lb.-in. N-m
53 8.9 79 11.3
128 22 194 27.5
lb.-ft. N-m lb.-ft. N-m
21 43 32 55
37 75 55 95
59 120 88 150
92 190 140 240
125 265 195 330
180 375 275 475
245 510 375 650
315 650 480 820
460 950 700 1200 885
625 1290 950 1630 1200 1850
1750 1300 2200 1625 2500
1650 2850 2100 3200
Utility Sprayer 25' / 30' / 40' / 45'
TIGHTENING HARDWARE
Class 10.9
4 Lubricated 3 Dry
lb.-in. N-m lb.-in. N-m
100 13 115 16.5
N-m lb.-ft. N-m
243 32 23.5 40
lb.-ft.
40 63 46 80
70 110 80 140
110 175 130 220
175 275 200 350
245 375 275 475
350 530 390 675
480 725 535 920
600 920 680 1150 850
1350 1000 1700 1250 1580
1350 2300 1700 2140
1850 3150 2325 2900
2350 4050 3000 3750
Shear bolts are designed to fail under predetermined loads. Always
replace shear bolts with identical property class. Replace fasteners
with the same or higher property class. If higher property class
fasteners are used, tighten these to the strength of the original. Make
sure fastener threads are clean and that you properly start thread
engagement. When possible, lubricate plain or zinc plated fasteners
other than lock nuts, wheel bolts, or wheel nuts, unless different
instructions are given for the specific application.
Class 12.9
4 Lubricated 3 Dry
lb.-in. N-m lb.-in. N-m
146 15.5 137 19.5
lb.-ft. N-m lb.-ft. N-m
29.5 37 27.5 47
59 75 55 95
105 130 95 165
165 205 150 260
255 320 235 400
350 440 325 560
500 625 460 790
680 850 625 1080 800
1080 800 1350 100 0
1160 2000 147 5
1580 2700 200 0
2150 3700 273 0
2770 4750 350 0
Page 100
4
lb.-in.
172
lb.-ft.
35
70
120
190
300
410
580