Kohler 7EFOZD, 9EFOZD, 9EOZD, 8.5EFOZD, 10EOZD manual Appendix C General Torque Specifications

Appendix C General Torque Specifications

American Standard Fasteners Torque Specifications

	Torque		Assembled into Cast Iron or Steel
		Grade 2		Grade 5		Grade 8
Size	Measurement
8-32	Nm (in. lb.)	1.8	(16)	2.3	(20)	—
10-24	Nm (in. lb.)	2.9	(26)	3.6	(32)	—
10-32	Nm (in. lb.)	2.9	(26)	3.6	(32)	—
1/4-20	Nm (in. lb.)	6.8	(60)	10.8	(96)	14.9	(132)
1/4-28	Nm (in. lb.)	8.1	(72)	12.2	(108)	16.3	(144)
5/16-18	Nm (in. lb.)	13.6	(120)	21.7	(192)	29.8	(264)
5/16-24	Nm (in. lb.)	14.9	(132)	23.1	(204)	32.5	(288)
3/8-16	Nm (ft. lb.)	24.0	(18)	38.0	(28)	53.0	(39)
3/8-24	Nm (ft. lb.)	27.0	(20)	42.0	(31)	60.0	(44)
7/16-14	Nm (ft. lb.)	39.0	(29)	60.0	(44)	85.0	(63)
7/16-20	Nm (ft. lb.)	43.0	(32)	68.0	(50)	95.0	(70)
1/2-13	Nm (ft. lb.)	60.0	(44)	92.0	(68)	130.0	(96)
1/2-20	Nm (ft. lb.)	66.0	(49)	103.0	(76)	146.0	(108)
9/16-12	Nm (ft. lb.)	81.0	(60)	133.0	(98)	187.0	(138)
9/16-18	Nm (ft. lb.)	91.0	(67)	148.0	(109)	209.0	(154)
5/8-11	Nm (ft. lb.)	113.0	(83)	183.0	(135)	259.0	(191)
5/8-18	Nm (ft. lb.)	128.0	(94)	208.0	(153)	293.0	(216)
3/4-10	Nm (ft. lb.)	199.0	(147)	325.0	(240)	458.0	(338)
3/4-16	Nm (ft. lb.)	222.0	(164)	363.0	(268)	513.0	(378)
1-8	Nm (ft. lb.)	259.0	(191)	721.0	(532)	1109.0	(818)
1-12	Nm (ft. lb.)	283.0	(209)	789.0	(582)	1214.0	(895)

Assembled into

Aluminum

Grade 2 or 5

See Note 3

Metric Fasteners Torque Specifications, Measured in Nm (ft. lb.)

				Assembled into Cast Iron or Steel					Assembled into
									Aluminum
Size (mm)			Grade 5.8		Grade 8.8		Grade 10.9		Grade 5.8 or 8.8
M6	x	1.00	6.2	(4.6)	9.5	(7)	13.6	(10)
M8	x	1.25	15.0	(11)	23.0	(17)	33.0	(24)
M8	x	1.00	16.0	(11)	24.0	(18)	34.0	(25)
M10	x	1.50	30.0	(22)	45.0	(34)	65.0	(48)
M10	x	1.25	31.0	(23)	47.0	(35)	68.0	(50)
M12	x	1.75	53.0	(39)	80.0	(59)	115.0	(85)
M12	x	1.50	56.0	(41)	85.0	(63)	122.0	(90)	See Note 3
M14	x	2.00	83.0	(61)	126.0	(93)	180.0	(133)
M14	x	1.50	87.0	(64)	133.0	(98)	190.0	(140)
M16	x	2.00	127.0	(94)	194.0	(143)	278.0	(205)
M16	x	1.50	132.0	(97)	201.0	(148)	287.0	(212)
M18	x	2.50	179.0	(132)	273.0	(201)	390.0	(288)
M18	x	1.50	189.0	(140)	289.0	(213)	413.0	(305)

Notes:

1.The torque values above are general guidelines. Always use the torque values specified in the service manuals and/or assembly drawings when they differ from the above torque values.

2.The torque values above are based on new plated threads. Increase torque values by 15% if non-plated threads are used.

3.Hardware threaded into aluminum must have either two diameters of thread engagement or a 30% or more reduction in the torque to prevent stripped threads.

4.Torque values are calculated as equivalent stress loading on American hardware with an approximate preload of 90% of the yield strength and a friction coefficient of 0.125.

58 Appendix TP-6270 11/06