Husqvarna MZ6128/966613103 warranty Technical Data, Torque Specifications

TECHNICAL DATA

Torque Specifications

Engine crankshaft bolt	50 ft/lb (67 Nm)	Standard ¼" fasteners	9 ft/lb (12 Nm)
Deck pulley bolts	75 ft/lb (100 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	55 ft/lb (75 Nm)	Standard 7/16" fasteners	52 ft/lb (70 Nm)
		Standard ½" fasteners	80 ft/lb (110 Nm)

Hex Head Cap Screws

Shank Size (Diameter in inches, fine or coarse thread)

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
5/16	18	24	28	38	24	33
3/8	31	42	46	62	40	54
7/16	50	68	75	108
½	75	102	115	156
9/16	110	150	165	224
5/8	150	203	225	305
¾	250	339	370	502
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
	M5	3	4	4.5	6	5.2	7
thread)	M6	5.2	7	7.5	10	8.2	11
	M7	8.2	11	12	16	15	20
coarse
	M8	13.5	18	18.8	25	21.8	29
fine or
	M10	24	32	35.2	47	43.5	58
millimeters,
	M14	70.5	94	100	133	119	159
	M12	43.5	58	62.2	83	75	100
in
(Diameter	M16	108	144	147	196	176	235
	M18	142	190	202	269	242	323
Size
	M20	195	260	275	366	330	440
Shank
	M22	276	368	390	520	471	628
	M24	353	470	498	664	596	794
	M27	530	707	474	996	904	1205

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