Husqvarna 966614701, 966614401, 966553901 Torque Specifications, Metric Standard Hardware

TECHNICAL DATA

Torque Specifications

Engine crankshaft bolt	50 ft/lb (67 Nm)	Standard ¼" fasteners	9 ft/lb (12 Nm)
Deck pulley bolts	150 ft/lb (203 Nm)	Standard 5/16" fasteners	18 ft/lb (25 Nm)
Lug nuts	75 ft/lb (100 Nm)	Standard 3/8" fasteners	33 ft/lb (44 Nm)
Blade bolt	90 ft/lb (122 Nm)	Standard 7/16" fasteners	52 ft/lb (70 Nm)
		Standard ½" fasteners	80 ft/lb (110 Nm)

HEX HEAD CAP SCREWS

The torque values shown should be used as a general guideline when specific torque values are not given.

U.S. Standard Hardware

Grade		SAE Grade 5		SAE Grade 8		Flangelock Screw
						w/Flangelock Nut
	Size	ft./lbs	Nm	ft./lbs	Nm	ft./lbs	Nm
	¼	9	12	13	18
or	5/16	18	24	28	38	24	33
fine
	3/8	31	42	46	62	40	54
inches,in
	½	75	102	115	156
	7/16	50	68	75	108
(DiameterSize thread)
	9/16	110	150	165	224
	5/8	150	203	225	305
	¾	250	339	370	502
Shank coarse	7/8	378	513	591	801
	11/8	782	1060	1410	1912

** Grade 5 - Minimum commercial quality (lower quality not recommended)

Metric Standard Hardware

Grade			Grade 8.8			Grade 10.9			Grade 12.9
	Size	ft./lbs		Nm	ft./lbs		Nm	ft./lbs		Nm
	M4	1.5		2	2.2		3	2.7		3.6
thread)	M5	3		4	4.5		6	5.2		7
	M6	5.2		7	7.5		10	8.2		11
coarseor	M7	8.2		11	12		16	15		20
	M10	24		32	35.2		47	43.5		58
	M8	13.5		18	18.8		25	21.8		29
fine
	M12	43.5		58	62.2		83	75		100
inches,in
	M16	108		144	147		196	176		235
	M14	70.5		94	100		133	119		159
(Diameter
	M18	142		190	202		269	242		323
	M20	195		260	275		366	330		440
Size	M22	276		368	390		520	471		628
	M24	353		470	498		664	596		794
Shank
	M27	530		707	474		996	904		1205

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