Husqvarna WHF5223 / 966947006 manual 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
	ft./lbs	ft./lbs	Nm	ft./lbs	Nm	ft./lbs	Nm
thread)	¼	9	12	13	18
	5/16	18	24	28	38	24	33
coarseor	7/16	50	68	75	108	40	54
	3/8	31	42	46	62
fine
	½	75	102	115	156
inches,
	9/16	110	150	165	224
in
(Diameter	5/8	150	203	225	305
	¾	250	339	370	502
Size
	7/8	378	513	591	801
Shank
	11/8	782	1060	1410	1912

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

Metric Standard Hardware

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

Grade	Grade 8.8		Grade 10.9		Grade 12.9
ft./lbs	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
M6	5.2	7	7.5	10	8.2	11
M7	8.2	11	12	16	15	20
M8	13.5	18	18.8	25	21.8	29
M10	24	32	35.2	47	43.5	58
M12	43.5	58	62.2	83	75	100
M14	70.5	94	100	133	119	159
M16	108	144	147	196	176	235
M18	142	190	202	269	242	323
M20	195	260	275	366	330	440
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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