waratah FL85, Operator'S Manual

Page: 56 / 80

Miscellaneous
Continued on next page AM24480,000035E -19-29FEB16-1/2
Unified inch-bolt and cap-screw torque
values
UNIFIED INCH-BOLT AND CAP-SCREW TORQUE VALUES
Unless otherwise specified, the tolerance is ±10%
T
ORQ1A
—UN—15APR13
Top: SAE grade and head markings; Bottom: SAE grade and nut markings
The following data is intended to assist in the machine’s general maintenance.
It is recommended you only use grade 8 (or higher) hardware.
Grade 1 (No mark) Grade 2
a
(No mark) Grade 5 / 5.1 / 5.2 Grade 8 / 8.2
Thread
Size
Lubricated
b
N·m (lb-ft)
Dry
c
N·m (lb-ft)
Lubricated
b
N·m (lb-ft)
Dry
c
N·m (lb-ft)
Lubricated
b
N·m (lb-ft)
Dry
c
N·m (lb-ft)
Lubricated
b
N·m (lb-ft)
Dry
c
N·m (lb-ft)
1/4 3.8 (2.8) 4.7 (3.5) 6 (4.4) 7.5 (5.5) 9.5 (7) 12 (9) 13.5 (10) 17 (12.5)
5/16 7.7 (5.7) 9.8 (7.2) 12 (9) 15.5 (11.5) 19.5 (14.5) 25 (18.5) 28 (20.5) 35 (26)
3/8 13.5 (10) 17.5 (13) 22 (16) 27.5 (20) 35 (26) 44 (32.5) 49 (36) 63 (46)
7/16 22 (16) 28 (20.5) 35 (26) 44 (32.5) 56 (41) 70 (52) 80 (59) 100 (74)
1/2 34 (25) 42 (31) 53 (39) 67 (49) 85 (63) 110 (80) 120 (88) 155 (115)
9/16 48 (35.5) 60 (45) 76 (56) 95 (70) 125 (92) 155 (115) 175 (130) 220 (165)
5/8 67 (49) 85 (63) 105 (77) 135 (100) 170 (125) 215 (160) 240 (175) 305 (225)
3/4 120 (88) 150 (110) 190 (140) 240 (175) 300 (220) 380 (280) 425 (315) 540 (400)
7/8 190 (140) 240 (175) 190 (140) 240 (175) 490 (360) 615 (455) 690 (510) 870 (640)
1 285 (210) 360 (265) 285 (210) 360 (265) 730 (540) 920 (680) 1030 (760) 1300 (960)
1-1/8 400 (300) 510 (375) 400 (300) 510 (375) 910 (670) 1150 (850) 1450 (1075) 1850 (1350)
1-1/4 570 (420) 725 (535) 570 (420) 725 (535) 1280 (945) 1630 (1200) 2050 (1500) 2600 (1920)
1-3/8 750 (550) 950 (700) 750 (550) 950 (700) 1700 (1250) 2140 (1580) 2700 (2000) 3400 (2500)
1-1/2 990 (730) 1250 (930) 990 (730) 1250 (930) 2250 (1650) 2850 (2100) 3600 (2650) 4550 (3350)
a
Grade 2 applies for hex-cap-screws (not hex-bolts) up to 6” (152 mm) long. Grade 1 applies for hex-cap-screws over 6” (152 mm) long, and
for all other types of bolts and screws of any length.
b
"Lubricated" means coated with a lubricant such as engine oil, or fasteners with phosphate and oil coatings.
c
"Dry" means plain or zinc-plated without any lubrication.
DO NOT use these values if a different torque value or
tightening procedure is given for a specific application.
The torque values listed are for general use only.
Ensure you check the tightness of fasteners periodically.
As shear-bolts are designed to fail under pre-determined
loads, you should always replace shear-bolts with an
identical grade.
Only replace fasteners with those of the same grade or
higher; where a higher-grade fastener is used, ensure
only tighten them to the strength of the original.
Ensure fastener threads are clean and that you start
thread-engagement properly; taking these steps will
minimise the risk of fasteners failing when they are being
tightened.
4-1-1 090621
PN=56