Wacker Neuson PT Series - Chapter 1: Fastener Torque Limits; SAE Fastener Torque Limits Table

Table 1-1. Torque Limits - SAE Standard Fasteners
Cap Screw Head Markings
(Manufacturer’s Marks May Vary)
TORQUE
SIZE
SAE GRADE
NO. 1 or 2 and
General Hardware
SAE GRADE NO.
5
SAE GRADE NO.
6 or 7
SAE GRADE NO.
8
DIA. INCHES
THREADS PER
INCH
lb-ft (N•m) lb-ft (N•m) lb-ft (N•m) lb-ft (N•m)
1/4
1/4
20
28
5 (7)
6 (8)
8 (11)
10 (14)
10 (14)
12 (16)
12 (16)
14 (19)
5/16
5/16
18
24
11 (15)
12 (16)
17 (23)
19 (26)
21 (28)
24 (33)
25 (34)
3/8
3/8
16
24
20 (27)
23 (31)
30 (41)
35 (47)
40 (54)
45 (61)
45 (61)
50 (68)
7/16
7/16
14
20
30 (41)
35 (47)
50 (68)
55 (75)
60 (81)
70 (95)
70 (95)
80 (108)
1/2
1/2
13
20
50 (68)
55 (75)
75 (102)
90 (122)
95 (129)
100 (136)
110 (149)
120 (163)
9/16
9/16
12
18
65 (88)
75 (102)
110 (149)
120 (163)
135 (183)
150 (203)
150 (203)
170 (230)
5/8
5/8
11
18
90 (122)
100 (136)
150 (203)
180 (244)
190 (258)
210 (285)
220 (298)
240 (325)
3/4
3/4
10
16
160 (217)
180 (244)
260 (353)
300 (407)
320 (434)
360 (488)
380 (515)
420 (569)
7/8
7/8
9
14
140 (190)
155 (210)
400 (542)
440 (597)
520 (705)
580 (786)
600 (813)
660 (895)
1
1
8
12
220 (298)
240 (325)
580 (786)
640 (868)
800 (1085)
860 (1166)
900 (1220)
1000 (1356)
1-1/8
1-1/8
7
12
300 (407)
340 (461)
800 (1085)
880 (1193)
1120 (1519)
1260 (1708)
1280 (1735)
1440 (1952)
1-1/4
1-1/4
7
12
420 (569)
460 (624)
1120 (1519)
1240 (1681)
1580 (2142)
1760 (2386)
1820 (2468)
2000 (2712)
1-3/8
1-3/8
6
12
560 (759)
640 (868)
1460 (1980)
1680 (2278)
2080 (2820)
2380 (3227)
2380 (3227)
2720 (3688)
1-1/2
1-1/2
6
12
740 (1003)
840 (1139)
1940 (2630)
2200 (2983)
2780 (3769)
3100 (4203)
3160 (4285)
3560 (4827)
SPECIFICATION AND GENERAL INFORMATION
1
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