Woods Equipment LF156, LF138 Appendix, Bolt Torque Chart, SAE Series Torque Chart, Metric Series

BOLT TORQUE CHART

Always tighten hardware to these values unless a different torque value or tightening procedure is listed for a specific application.

Fasteners must always be replaced with the same grade as specified in the manual parts list.

Always use the proper tool for tightening hardware: SAE for SAE hardware and Metric for metric hardware. Make sure fastener threads are clean and you start thread engagement properly.

All torque values are given to specifications used on hardware defined by SAE J1701 MAR 99 & J1701M JUL 96.

SAE SERIES

A TORQUE

CHART

SAE Bolt Head

Identification

SAE Grade 2	SAE Grade 5	SAE Grade 8
(No Dashes)	(3 Radial Dashes)	(6 Radial Dashes)

A					MARKING ON HEAD
			SAE 2			SAE 5			SAE 8
Diameter	Wrench
(Inches)	Size	lbs-ft		N-m	lbs-ft		N-m	lbs-ft		N-m
1/4"	7/16"	6		8	10		13	14		18
5/16"	1/2"	12		17	19		26	27		37
3/8"	9/16"	23		31	35		47	49		67
7/16"	5/8"	36		48	55		75	78		106
1/2"	3/4"	55		75	85		115	120		163
9/16"	13/16"	78		106	121		164	171		232
5/8"	15/16"	110		149	170		230	240		325
3/4"	1-1/8"	192		261	297		403	420		569
7/8"	1-5/16"	306		416	474		642	669		907
1"	1-1/2"	467		634	722		979	1020		1383

				METRIC SERIES				8.8		Metric Bolt Head		10.9
		A		TORQUE				Metric		Identification		Metric
				CHART
								Grade 8.8				Grade 10.9
							COARSE THREAD				FINE THREAD
	A													A
							MARKING ON HEAD				MARKING ON HEAD
Diameter &														Diameter &
					Metric 8.8			Metric 10.9		Metric 8.8		Metric 10.9
Thread Pitch			Wrench											Thread Pitch
(Millimeters)			Size		N-m		lbs-ft	N-m	lbs-ft	N-m	lbs-ft	N-m	lbs-ft	(Millimeters)
6 x 1.0			10 mm		8		6	11	8	8	6	11	8	6 x 1.0
8 x 1.25			13 mm		20		15	27	20	21	16	29	22	8 x 1.0
10 x 1.5			16 mm		39		29	54	40	41	30	57	42	10 x 1.25
12 x 1.75			18 mm		68		50	94	70	75	55	103	76	12 x 1.25
14 x 2.0			21 mm		109		80	151	111	118	87	163	120	14 x 1.5
16 x 2.0			24 mm		169		125	234	173	181	133	250	184	16 x 1.5
18 x 2.5			27 mm		234		172	323	239	263	194	363	268	18 x 1.5
20 x 2.5			30 mm		330		244	457	337	367	270	507	374	20 x 1.5
22 x 2.5			34 mm		451		332	623	460	495	365	684	505	22 x 1.5
24 x 3.0			36 mm		571		421	790	583	623	459	861	635	24 x 2.0
30 x 3.0			46 mm		1175		867	1626	1199	1258	928	1740	1283	30 x 2.0
Typical Washer						Lock Washer		Flat Washer
Installations

Bolt

8/9/00

46Appendix

Bolt Torque & Size Charts (Rev. 3/28/2007)