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TORQUE SPECIFICATIONS
AMERICAN
Bolt Head Markings
SAE Grade 2
(No Dashes)
SAE Grade 5
(3 Dashes)
Wrench
Size "A"
SAE Grade 8
(6 Dashes)
11
Proper torque for American fasteners used on manufactured implement.
Recommended Torque in Foot Pounds (Newton Meters).*
WRENCH
BOLT DIAMETER
SIZE(IN.) "A"
(IN.) "B" AND
THREAD SIZE
7/16
1/4 -20 UNC
7/16
1/4 - 24 UNF
1/2
5/16 -18 UNC
1/2
5/16 - 24 UNF
9/16
3/8 - 16 UNC
9/16
3/8 -24 UNF
5/8
7/16 -14 UNC
5/8
7/16 - 20 UNF
3/4
1/2 - 13 UNC
3/4
1/2 - 20 UNF
7/8
9/16 -12 UNC
7/8
9/16 - 18 UNF
15/16
5/8 - 11 UNC
15/16
5/8 - 18 UNF
1-1/8
3/4 - 10 UNC
1-1/8
3/4 - 16 UNF
1-5/16
7/8 - 9 UNC
1-5/16
7/8 - 14 UNF
1-1/2
1-8 UNC
1-1/2
1 - 12 UNF
1-1/2
1-14 UNF
1-11/16
1-1/8 - 7 UNC
1-11/16
1-1/8 -12 UNF
1-7/8
1-1/4 - 7 UNC
1-7/8
1-1/4 - 12 UNF
2-1/16
1-3/8 - 6 UNC
2-1/16
1-3/8 -12 UNF
2-1/4
1-1/2 - 6 UNC
2-1/4
1-1/2 - 12 UNF
SAE
SAE
GRADE 2
GRADE 5
6 (7)
8 (11)
6 (8)
10 (13)
11 (15)
17 (23)
13 (17)
19 (26)
20 (27)
31 (42)
23 (31)
35 (47)
32 (43)
49 (66)
36 (49)
55 (75)
49 (66)
76 (103)
55 (75)
85 (115)
70 (95)
109 (148)
79 (107)
122 (165)
97 (131)
150 (203)
110 (149)
170 (230)
144(195)
266 (360)
192 (260)
297 (406)
166 (225)
430 (583)
184 (249)
474 (642)
250 (339)
644 (873)
274 (371)
705 (955)
280 (379)
721 (977)
354 (480)
795 (1077)
397 (538)
890 (1206)
500 (678)
1120 (1518)
553 (749)
1241 (1682)
655 (887)
1470 (1992)
746 (1011)
1672 (2266)
870 (1179)
1950 (2642)
979 (1327)
2194 (2973)
SAE
GRADE 8
12 (16)
14 (18)
25 (33)
27 (37)
44 (60)
49 (66)
70 (95)
78 (106)
106 (144)
120 (163)
153 (207)
172 (233)
212 (287)
240 (325)
376 (509)
420 (569)
606 (821)
668 (905)
909 (1232)
995 (1348)
1019 (1381)
1288 (1745)
1444 (1957)
1817 (2462)
2013 (2728)
2382 (3228)
2712 (3675)
3161 (4283)
3557 (4820)
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