Craftsman 107.27768 manual Hardware identification& TorqueSpecifications

Hardware identification& TorqueSpecifications

Common			Hardware			Types										Torque		Specification			Chart
Hex Head Capscrew												Washer				FOR STANDARD MACHINE HARDWARE (Tolerance _+20%)
																	©		©		©
C			((((((((((((((((((((){(((((((((((((((((( O													Grade
												Lockwasher				Hardware
Carriage			Belt														SAEGrade 2		SAEGrade5		SAEGrade8
¢			(((((((((((((((((((()((((((((((((((({((((O									HexNut				Size Of	in/Ibs		in/Ibs		in/Ibs
Standard			Hardware			Sizing										Hardware	fifths	Nm.	ft/Ibs	Nm.	ft/Ibs	Nm.
When		a	washer		or	nut is		identified		as	112",		this	is	the	8-32	19	2.1	30	3.4	41	4.6
																8-36	20	2.3	31	3.5	43	4.9
Nominal		size,		meaning			the	inside	diameteris			1/2 inch;			if a
																10-24	27	3.1	43	4.9	60	6.8
second number is present it represent the threads per inch
When bolt or capscrew is identified as 112 - 16 x 2", this																10-32	31	3.5	49	5.5	68	7.7
																1/4-20	66	7.6	8	10.9	12	16.3
means the Nominal size, or body diameter is 1/2 inch; the
																1/4-28	76	8.6	10	13.6	14	19.0
second		number			represents			the threads		perinch			(16	in this
																5/16-18	11	15.0	17	23.1	25	34.0
example, and the final number is the body length of the
																5/16-24	12	16.3	19	25.8	27	34.0
bolt	or	screw		(in	this	example		2 inches		long).
The	guides and				ruler		furnished		below		are	designed			to	3/8-16	20	27.2	30	40.8	45	61.2
																3/8-24	23	31.3	35	47.6	50	68.0
help	you		select		the	appropriate			hardware			and	tools.
																7/16-14	30	40.8	50	68.0	70	95.2
m_																7/16-20	35	47.6	55	74.8	80	108.8
									Nut,		1/2"					1/2-13	50	68.0	75	102.0	110	149.6
												Inside				1/2-20	55	74.8	90	122.4	120	163.2
																9/16-12	65	88.4	110	149.6	150	204.0
												Diameter
																9/16-18	75	102.0	120	163.2	170	231.2
																5/8-11	90	122.4	150	204.0	220	299.2
mr														}		5/8-18	100	136	180	244.8	240	326.4
																3/4-10	160	217.6	260	353.6	386	525.0
																3/4-16	180	244.8	300	408.0	420	571.2
																7/8-9	140	190.4	400	544.0	600	816.0
-"				Screw,			1/2x2			"						7/8-14	155	210,8	440	598.4	660	897.6
																1-8	220	299.2	580	788.8	900	1,244.0
--_					Body											1-12	240	326.4	640	870.4	1,000	1,360.0
				Diameter															NOTES
																1. These torque values are to be used for all hardware
																excluding: Iocknuts, self-tapping screws, thread forming
																screws, sheet metal screws and socket head setscrews.
							Length									2. Recommended		seating	torque values for		Iocknuts:
																a. for prevailing torque Iocknuts - use 65% of grade 5
																torques.
																b. for flange whizlock nuts and screws - use 135% of
																grade 5 torques.

3. Unless otherwise noted on assembly drawings, all torque values must meet this specification.

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Wrench & Fastener Size Guide

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114" Bolt	or Nut	5/16" Bolt or Nut	318" Bolt or Nut	7/16"	Bolt	or	Nut	112" Bolt	or Nut
Wrench--	7/16"	Wrench--1/2"	Wrench--9/16"	Wrench	(Bolt)--		5/8"	Wrench--	3/4"
				Wrench	(Nut)	--11/16"

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