Land Pride RCR1860 Torque Values Chart For Common Bolt Sizes, Additional Torque Values, In-tpi

Table of Contents

Section 9: Appendix

Torque Values Chart For Common Bolt Sizes

			Bolt Head Identification												Bolt Head Identification
Bolt Size										Bolt Size						8.8		10.9
													5.8
(Inches)										(Metric)		Class 5.8				Class 8.8			Class 10.9
in-tpi 1		Grade 2			Grade 5			Grade 8
	N · m		ft-lb 3	N · m		ft-lb	N · m		ft-lb	mm x pitch		N · m		ft-lb		N · m		ft-lb	N · m		ft-lb
1/4" - 20	7.4		5.6	11		8	16		12	M 5 X 0.8		4		3		6		5	9		7
1/4" - 28	8.5		6	13		10	18		14	M 6 X 1		7		5		11		8	15		11
5/16" - 18	15		11	24		17	33		25	M 8 X 1.25		17		12		26		19	36		27
5/16" - 24	17		13	26		19	37		27	M 8 X 1		18		13		28		21	39		29
3/8" - 16	27		20	42		31	59		44	M10	X 1.5	33		24		52		39	72		53
3/8" - 24	31		22	47		35	67		49	M10	X 0.75	39		29		61		45	85		62
7/16" - 14	43		32	67		49	95		70	M12	X 1.75	58		42		91		67	125		93
7/16" - 20	49		36	75		55	105		78	M12	X 1.5	60		44		95		70	130		97
1/2" - 13	66		49	105		76	145		105	M12	X 1	90		66		105		77	145		105
1/2" - 20	75		55	115		85	165		120	M14	X 2	92		68		145		105	200		150
9/16" - 12	95		70	150		110	210		155	M14	X 1.5	99		73		155		115	l215		160
9/16" - 18	105		79	165		120	235		170	M16	X 2	145		105		225		165	315		230
5/8" - 11	130		97	205		150	285		210	M16	X 1.5	155		115		240		180	335		245
5/8" - 18	150		110	230		170	325		240	M18	X 2.5	195		145		310		230	405		300
3/4" - 10	235		170	360		265	510		375	M18	X 1.5	220		165		350		260	485		355
3/4" - 16	260		190	405		295	570		420	M20	X 2.5	280		205		440		325	610		450
7/8" - 9	225		165	585		430	820		605	M20	X 1.5	310		230		650		480	900		665
7/8" - 14	250		185	640		475	905		670	M24	X 3	480		355		760		560	1050		780
1" - 8	340		250	875		645	1230		910	M24	X 2	525		390		830		610	1150		845
1" - 12	370		275	955		705	1350		995	M30	X 3.5	960		705		1510		1120	2100		1550
1-1/8" - 7	480		355	1080		795	1750		1290	M30	X 2	1060		785		1680		1240	2320		1710
1 1/8" - 12	540		395	1210		890	1960		1440	M36	X 3.5	1730		1270		2650		1950	3660		2700
1 1/4" - 7	680		500	1520		1120	2460		1820	M36	X 2	1880		1380		2960		2190	4100		3220
1 1/4" - 12	750		555	1680		1240	2730		2010	1 in-tpi = nominal thread diameter in inches-threads per inch
1 3/8" - 6	890		655	1990		1470	3230		2380	2 N· m = newton-meters
1 3/8" - 12	1010		745	2270		1670	3680		2710	3 ft-lb= foot pounds
1 1/2" - 6	1180		870	2640		1950	4290		3160	4 mm x pitch = nominal thread diameter in millimeters x thread
1 1/2" - 12	1330		980	2970		2190	4820		3560	pitch
Torque tolerance + 0%, -15% of torquing values. Unless otherwise specified use torque values listed above.
							Additional Torque Values
Blade Carrier Hub Nut						450 ft-lbs Minimum

28 RCR1860 and RCR1872 Series Rotary Cutters 312-849M 12/17/07