Buhler 2360 Hardware Torque Values, Minimum Hardware Tightening Torques, HEX Nuts and Locknuts

SECTION 5 - SPECIFICATIONS

HARDWARE TORQUE VALUES

Check the tightness of hardware periodically.

Use the following charts to determine the correct torque when checking, adjusting or replacing hardware on the tractor.

IMPORTANT: DO NOT use the values listed in the charts if a different torque value or tightening procedure is specified in this manual for a specific application. Torque values listed are for general use only.

Make sure fastener threads are clean and not damaged

NOTE: A torque wrench is necessary to properly tighten hardware.

MINIMUM HARDWARE TIGHTENING TORQUES

IN FOOT POUNDS (NEWTON-METERS) FOR NORMAL ASSEMBLY APPLICATIONS

METRIC HARDWARE AND LOCKNUTS

NOMINAL		CLASS 5.8				CLASS 8.8				CLASS 10.9			LOCKNUT
													CL.8
SIZE
	UNPLATED		PLATED		UNPLATED		PLATED		UNPLATED		PLATED		w/CL8.8
													BOLT
			w/ZnCr				w/ZnCr				w/ZnCr
M4	15*	(1.7)	19* (2.2)		23* (2.6)		30* (3.4)		33* (3.7)		42* (4.8)		16* (1.8)
M6	51*	(5.8)	67* (7.6)		79* (8.9)		102* (12)		115* (13)		150* (17)		56* (6.3)
M8	124* (14)		159* (18)		195*(22)		248* (28)		274* (31)		354* (40)		133* (15)
M10	21	(28)	27	(36)	32	(43)	41	(56)	45	(61)	58	(79)	22	(30)
M12	36	(49)	46	(63)	55	(75)	72	(97)	79 (107)		102	(138)	39	(53)
M16	89 (121)		117 (158)		137	(186)	177	(240)	196	(266)	254	(344)	97 (131)
M20	175	(237)	226	(307)	277	(375)	358	(485)	383	(519)	495	(671)	195	(265)
M24	303	(411)	392	(531)	478	(648)	619	(839)	662	(897)	855 (1160)		338	(458)

NOTE: Torque values shown with * are inch pounds.

IDENTIFICATION

HEX CAP SCREWS AND CARRIAGE BOLTS

CLASSES 5.6 AND UP.

MANUFACTURER’S IDENTIFICATION

PROPERTY CLASS

HEX NUTS AND LOCKNUTS

CLASSES 05 AND UP.

MANUFACTURER’S IDENTIFICATION

PROPERTY CLASS CLOCK MARKING

5-34