Torque Wrench Heads | McMaster-Carr

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System of Measurement

Drive Size

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Torque Wrench Type

Torque

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Wrench Type

Maximum Torque

Less than 1,000 ft·lbf

Square Drive Size

For Use With

Power Source

Performance

Ratcheting

Material

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

EAR99

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

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RoHS

REACH

Opening Angle

75 Products

Changeable-Head Torque Wrenches

Change heads to use these tools as an open-end, box, square drive, or hex-key wrench. The handle and head combination you choose may have different maximum torque values. Do not exceed the lower value. The handles come with a calibration certificate, which includes test measurements that confirm accuracy.

You can tighten fasteners that require less torque than the values listed, but the accuracy ratings apply only within the specified range.

Square Drive Heads

Nonratcheting

Ratcheting

Repair Kits

Ratcheting—Ratcheting square drive heads allow you to turn fasteners in tight spaces without removing and repositioning the tool.

Repair Kits—Include the components needed to replace a damaged ratcheting mechanism.

	Heads					Repair Kits
	Square Drive Size	Max. Torque	Color		Each		Each
Nonratcheting



		1/4"	250 in·lbf	Black	5347A55	000000	———	0


		3/8"	1,250 in·lbf	Black	5347A56	00000	———	0
		1/2"	2,500 in·lbf	Black	5347A57	00000	———	0


		Ratcheting



				1/4"	250 in·lbf	Black	5347A61	00000	85555A911	000000


				3/8"	1,250 in·lbf	Black	5347A62	000000	85555A912	00000
				1/2"	2,500 in·lbf	Black	5347A63	000000	85555A913	00000

Hex Key Heads

Image of Product. Front orientation. Torque Wrenches. Changeable-Head Torque Wrenches, Hex Key.

	Max. Torque	Color		Each
Nonratcheting



	3/32"	30 in·lbf	Black	5347A151	000000


	5/32"	135 in·lbf	Black	5347A153	00000
	3/16"	235 in·lbf	Black	5347A154	00000
	1/4"	450 in·lbf	Black	5347A155	00000
	5/16"	850 in·lbf	Black	5347A156	00000

Open End Heads

	Max. Torque	Opening Angle	Color		Each
12-Point Sure-Grip Opening—Nonratcheting



	5/16"	150 in·lbf	30°	Black	5347A161	000000


	7/16"	250 in·lbf	30°	Black	5347A163	00000
	1/2"	300 in·lbf	30°	Black	5347A164	00000
	9/16"	350 in·lbf	30°	Black	5347A165	00000
	5/8"	400 in·lbf	30°	Black	5347A166	00000
	3/4"	600 in·lbf	30°	Black	5347A168	00000
	7/8"	800 in·lbf	30°	Black	5347A171	00000
	15/16"	900 in·lbf	30°	Black	5347A172	000000


	Hex Opening—Nonratcheting



			1/4"	100 in·lbf	15°	Black	5347A111	00000


			5/16"	150 in·lbf	15°	Black	5347A112	00000
			3/8"	200 in·lbf	15°	Black	5347A113	00000
			7/16"	300 in·lbf	15°	Black	5347A114	00000
			1/2"	350 in·lbf	15°	Black	5347A115	00000
			9/16"	400 in·lbf	15°	Black	5347A116	00000
			5/8"	600 in·lbf	15°	Black	5347A117	00000
			11/16"	800 in·lbf	15°	Black	5347A118	00000
			3/4"	1,000 in·lbf	15°	Black	5347A119	00000
			13/16"	1,250 in·lbf	15°	Black	5347A121	00000
			7/8"	1,500 in·lbf	15°	Black	5347A122	00000


			15/16"	1,750 in·lbf	15°	Black	5347A123	00000
			1"	2,000 in·lbf	15°	Black	5347A124	00000
			1 1/16"	2,250 in·lbf	15°	Black	5347A148	000000
			1 1/8"	2,500 in·lbf	15°	Black	5347A125	000000
			1 1/4"	3,000 in·lbf	15°	Black	5347A126	000000
			8 mm	141 in·lbf	15°	Black	5347A181	00000
			10 mm	194 in·lbf	15°	Black	5347A182	00000
			11 mm	300 in·lbf	15°	Black	5347A183	00000
			12 mm	345 in·lbf	15°	Black	5347A184	00000
			13 mm	345 in·lbf	15°	Black	5347A185	00000


			14 mm	398 in·lbf	15°	Black	5347A186	00000
			15 mm	592 in·lbf	15°	Black	5347A187	00000
			16 mm	592 in·lbf	15°	Black	5347A188	00000
			17 mm	796 in·lbf	15°	Black	5347A189	00000
			18 mm	796 in·lbf	15°	Black	5347A191	00000
			19 mm	1,000 in·lbf	15°	Black	5347A192	00000
			22 mm	1,495 in·lbf	15°	Black	5347A194	00000
			24 mm	1,743 in·lbf	15°	Black	5347A195	00000
			27 mm	2,248 in·lbf	15°	Black	5347A196	00000

Box Heads

	Max. Torque	Color		Each
12-Point Opening—Nonratcheting



	1/4"	250 in·lbf	Black	5347A131	000000


	5/16"	350 in·lbf	Black	5347A132	00000
	3/8"	450 in·lbf	Black	5347A133	00000
	7/16"	650 in·lbf	Black	5347A134	00000
	1/2"	850 in·lbf	Black	5347A135	00000
	9/16"	1,050 in·lbf	Black	5347A136	00000
	5/8"	1,250 in·lbf	Black	5347A137	00000
	11/16"	1,450 in·lbf	Black	5347A138	00000
	3/4"	1,800 in·lbf	Black	5347A139	00000
	7/8"	2,400 in·lbf	Black	5347A142	00000
	15/16"	2,700 in·lbf	Black	5347A143	00000


	1"	3,000 in·lbf	Black	5347A144	00000
	1 1/16"	3,150 in·lbf	Black	5347A145	000000
	1 1/4"	3,600 in·lbf	Black	5347A147	000000
	10 mm	442 in·lbf	Black	5347A201	00000
	11 mm	646 in·lbf	Black	5347A202	00000
	12 mm	849 in·lbf	Black	5347A209	00000
	13 mm	849 in·lbf	Black	5347A203	00000
	14 mm	1,053 in·lbf	Black	5347A204	00000
	15 mm	1,247 in·lbf	Black	5347A205	00000
	17 mm	1,442 in·lbf	Black	5347A206	00000


	19 mm	1,796 in·lbf	Black	5347A207	00000
	24 mm	2,699 in·lbf	Black	5347A208	00000