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Torques for Common Bolts and Screws

Grade 8 Course Thread

Tables

BOLT size - pitch	LUBRICATED	WITH ANTI -SEIZE
	Nm	Nm
1/4 " -20	15	10
	Nm	Nm
5/16 " -18	31	20
3/8 " -16	54	37
7/16 " -14	85	57
1/2 " -13	130	87
9/16 " -12	190	126
5/8 " -11	264	176
3/4 " -10	461	312
7/8 " -9	746	495
1 " -8	1,112	746
1 1/8 " -7	1,573	1,051
1 1/4 " -7	2,224	1,491
1 3/8 " -6	2,915	1,939
1 1/2 " -6	3,864	2,576
1 3/4 " -5	6,088	4,067
2 " -4.5	9,152	6,101
2 1/4 " -4.5	13,382	8,921
2 1/2 " -4	18,304	12,202
2 3/4 " -4	24,947	16,677
3" -4	32,811	21,964

Grade 8 Fine Thread

BOLT size - pitch	LUBRICATED	WITH ANTI -SEIZE
	Nm	Nm
1/4 " -28	17	11
	Nm	Nm
5/16 " -24	34	23
3/8 " -24	61	41
7/16 " -20	96	64
1/2 " -20	146	98
9/16 " -18	210	142
5/8 " -18	298	197
3/4 " -16	515	346
7/8 " -14	820	549
1 " -14	1,247	834
1 1/8 " -12	1,763	1,180
1 1/4 " -12	2,468	1,641
1 3/8 " -12	3,322	2,210
1 1/2 " -12	4,352	2,901

Grade 5 Fine Thread

BOLT size - pitch	LUBRICATED	WITH ANTI -SEIZE
	Nm	Nm
1/4 " -28	12	8
	Nm	Nm
5/16 " -24	24	16
3/8 " -24	43	28
7/16 " -20	68	46
1/2 " -20	104	69
9/16 " -18	149	99
5/8 " -18	210	142
3/4 " -16	366	244
7/8 " -14	583	386
1 " -14	888	590
1 1/8 " -12	1,091	725
1 1/4 " -12	1,519	1,010
1 3/8 " -12	2,047	1,369
1 1/2" -12	2,685	1,790

Grade 5 Course Thread

BOLT size - pitch	LUBRICATED	WITH ANTI -SEIZE
	Nm	Nm
1/4 " -20	10	7
5/16 " -18	22	15
3/8 " -16	38	26
7/16 " -14	61	41
1/2 " -13	92	62
9/16 " -12	133	89
5/8 " -11	190	123
3/4 " -10	325	217
7/8 " -9	529	353
1 " -8	786	529
1 1/8 " -7	969	651
1 1/4 " -7	1,369	915
1 3/8 " -6	1,803	1,200
1 1/2 " -6	2,386	1,586
1 3/4 " -5	3,756	2,508
2 " -4.5	5,640	3.769
2 1/4 " -4.5	8,257	5,505
2 1/2 " -4	11,294	7,525
2 3/4 " -4	15,321	10,223
3 " -4	20,337	13,477

Socket-Head Coarse Thread

BOLT size - pitch	LUBRICATED	WITH ANTI -SEIZE
	Nm	Nm
1/4 " -20	17	11
5/16 " -18	35	24
3/8 " -16	62	42
7/16 " -14	100	66
1/2 " -13	156	102
9/16 " -12	217	142
5/8 " -11	292	197
3/4 " -10	522	346
7/8 " -9	834	556
1 " -8	1.247	834
1 1/8 " -7	1,769	1,180
1 1/4 " -7	2,495	1,668
1 3/8 " -6	3,274	2,183
1 1/2 " -6	4,345	2,895
1 3/4 " -5	6.847	4,569
2 " -4.5	10,291	6,860
2 1/4 " -4.5	15,050	10,033
2 1/2 " -4	20,588	13,728
2 3/4 " -4	27,943	18,629
3 " -4	36,865	24,581

Socket-Head Fine Thread

BOLT size - pitch	LUBRICATED	WITH ANTI -SEIZE
	Nm	Nm
1/4 " -28	19	13
5/16 " -24	39	27
3/8 " -24	71	47
7/16 " -20	111	75
1/2 " -20	176	114
9/16 " -18	237	163
5/8 " -18	332	224
3/4 " -16	576	386
7/8 " -14	922	617
1 " -14	1,403	936
1 1/8 " -12	1,986	1,322
1 1/4 " -12	2,766	1,844
1 3/8 " -12	3,728	2,488
1 1/2 " -12	4,888	3,261

316 SS or F593 G&H Course Thread

BOLT size - pitch	LUBRICATED	WITH ANTI -SEIZE
	Nm	Nm
1/4 " -20	7	5
5/16 " -18	15	9
3/8 " -16	26	18
7/16 " -14	39	27
1/2 " -13	61	41
9/16 " -12	87	58
5/8 " -11	119	80
3/4 " -10	149	98
7/8 " -9	237	157
1 " -8	359	236
1 1/8 " -7	502	335
1 1/4 " -7	712	472
1 3/8 " -6	929	618
1 1/2 " -6	1,234	820
1 3/4 " -5	1,952	1,293
2 " -4.5	2,929	1,952
2 1/4 " -4.5	4,271	2,847
2 1/2 " -4	5,844	3.891
2 3/4 " -4	7,918	5,288
3 " -4	10,453	6.969

316 SS or F593 G&H Fine Thread

BOLT size - pitch	LUBRICATED	WITH ANTI -SEIZE
	Nm	Nm
1/4 " -28	8	5
	Nm	Nm
5/16 " -24	16	11
3/8 " -24	28	19
7/16 " -20	45	30
1/2 " -20	68	46
9/16 " -18	96	65
5/8 " -18	136	91
3/4 " -16	169	110
7/8 " -14	264	176
1 " -14	400	271
1 1/8 " -12	563	380
1 1/4 " -12	786	522
1 3/8 " -12	1,058	705
1 1/2 " -12	1,396	929

Metric Grade 10.9 Fine Thread

	LUBRICATED	WITH ANTI -SEIZE
	Nm	Nm
6-0.75	15	10
8-1.00	35	24
10-1.25	69	46
12-1.50	119	80
14-1.50	197	130
16-1.50	305	203
18-1.50	488	325
20-1.50	671	447
22-1.50	895	597
24-2.00	1,166	780
27-2.00	1,668	1,112
30-1.50	2,508	1,668

Metric Grade 10.9 Coarse Thread

BOLT size - pitch	LUBRICATED	WITH ANTI -SEIZE
	Nm	Nm
6-1.00	13	9
8-1.25	34	23
10-1.50	65	43
12-1.75	114	76
14-2.00	183	121
16-2.00	285	190
20-2.50	549	366
22-2.50	746	502
24-3.00	949	630
27-3.00	1,396	929
30-3.50	1,885	1,254
36-4.00	3,295	2,196
42-4.50	5,261	3,512
48-5.00	7,904	5,274
56-5.50	12,704	8,474
64-6.00	19,253	12,758
72-6.00	27,930	18,575
80-6.00	38,912	25,896
90-6.00	56,266	37,556
100-6.00	78,231	52,199

Metric Socket head Grade 12.9 Fine Thread

BOLT size - pitch	LUBRICATED	WITH ANTI -SEIZE
	Nm	Nm
6-0.75	17	11
8-1.00	41	27
10-1.25	77	52
12-1.50	134	89
14-1.50	224	149
16-1.50	339	230
18-1.50	549	366
20-1.50	759	508
22-1.50	1,010	678
24-2.00	1,315	875
27-2.00	1,885	1,254
30-1.50	2,834	1,885

Metric Socket head Grade 12.9 Coarse Thread

BOLT size - pitch	LUBRICATED	WITH ANTI -SEIZE
	Nm	Nm
6-1.00	15	10
8-1.25	38	26
10-1.50	73	49
12-1.75	129	85
14-2.00	210	142
16-2.00	319	217
20-2.50	624	414
22--2.50	847	563
24-3.00	1,071	712
27-3.00	1,573	1,044
30-3.50	2,129	1,424
36-4.00	3,715	2,481
42-4.50	5,952	3,973
48-5.00	8,935	5,952
56-5.50	14,372	9,572
64-6.00	21,693	14,507
72-6.00	31,455	21,015
80-6.00	43,929	29,286
90-6.00	63,588	42,437
100-6.00	88,399	58,978

Metric 316 or 304 Fine Thread

BOLT size - pitch	LUBRICATED	WITH ANTI -SEIZE
	Nm	Nm
6-0.75	7	5
8-1.00	16	11
10-1.25	33	22
12-1.50	56	37
14-1.50	91	61
16-1.50	138	92
18-1.50	224	149
20-1.50	312	210
22-1.50	414	278
24-2.00	536	359
27-2.00	773	515
30-1.50	1,159	773

Metric 316 or 304 Coarse Thread

BOLT size - pitch	LUBRICATED	WITH ANTI -SEIZE
	Nm	Nm
6-1.00	6	4
8-1.25	16	11
10-1.50	31	20
12-1.75	53	35
14-2.00	84	56
16-2.00	130	87
20-2.50	258	169
22--2.50	346	230
24-3.00	441	292
27-3.00	644	427
30-3.50	868	583
36-4.00	1,519	1,017
42-4.50	2,440	1,620
48-5.00	3,661	2,440
56-5.50	5,871	3,918
64-6.00	8,840	5,898
72-6.00	12,853	8,569
80-6.00	18,032	11,958
90-6.00	26,032	17,314
100-6.00	36,200	24,134