Emerson VSS, VSR, VSM service manual Torque Specifications ft-lbs, Type

Torque Specifications (ft-lbs)

Type		Head			Nominal Size Numbers or Inches
Bolt	Markings
			#10	1/4	5/16	3/8	7/16	1/2	9/16	5/8	3/4	7/8
SAE Grade 2			-	5	10	18	29	44	63	87	155	150*
Coarse (UNC)
SAE Grade 5			-	8	16	28	44	68	98	135	240	387
Coarse (UNC)
SAE Grade 5			-	-	18	-	-	-	-	-	-	-
Coarse (UNC)
SAE Grade 8			-	11	22	39	63	96	138	191	338	546
Coarse (UNF)
Socket Head
Cap Screw			5	13	26	46	73	112	115	215	380	614
(ASTM A574)
Coarse (UNC)

1)Torque values in this table are not to override other specific torque specifications when supplied.

2)When using loctite, torque values in this table are only accurate if bolts are tightened immediately after loctite is applied.

*The proof strength of Grade 2 bolts is less for sizes 7/8 and above and therefore the torque values are less than smaller sizes of the same grade.

Torque Specifications for 17-4 Stainless Steel Fasteners (ft-lbs)

Type	Head		Nominal Size Numbers or Inches
Bolt/Nut	Markings
	#10	1/4	5/16	3/8	7/16	1/2	9/16	5/8	3/4
Hex & Socket	3	8	14	25	40	60	101	137	245
Head Cap Screws
Nut	-	8	-	25	-	-	-	-	-

NOTE: Continue use of red loctite #271 (VPN 2205E) on currently applied locations. Use blue loctite #243 (VPN 2205F or 2205G) on all remaining locations.

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