4-Point Wrenches | McMaster-Carr

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Square Drive Size

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Ratcheting

Number of Heads

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101 Products

Welding Tank Wrenches

Turn the fittings on welding tanks.

Box

Drive Size	Overall Lg.	For Turning	For Cylinder Size	Wrench Opening Shape	Material		Each
3/16"	3 1/8"	Valve Stems	B, MC	4-Point	Steel	7848A11	00000

Socket


3/8" Drive Size	9/32" Drive Size

Drive Size	Overall Lg.	For Turning	Wrench Opening Shape	Material	For Mfr.		Each
3/8"	5 1/4"	Valve Stems	4-Point	Steel	Airco, Burdette, Liquid Air, NCG	7930A11	00000
9/32"	6"	Valve Stems	4-Point	Steel	Linde, POL, Pyrofax	7930A12	0000

Round Open End, Box, and Socket

	Round Open End		Box End			Socket End
Overall Lg.	Drive Size	For Turning	Drive Size	For Turning	Wrench Opening Shape	Drive Size	For Turning	Wrench Opening Shape	Material		Each
8 1/2"	1/16" 1/2" 9/16" 5/8" 11/16" 7/8" 1" 1 1/8"	Valve Stems, Regulator Inlet Nuts	1/4"	Valve Stems	4-Point	1/2"	Valve Stems	4-Point	Steel	7935A14	000000

Two-Head Ratcheting Box Wrenches


4-Point Openings	4-Point and 6-Point Openings

Ratchet mechanisms allow you to turn fasteners in tight spaces without removing and repositioning the tool.

The smaller the turn required to ratchet, the less clearance you need to engage the ratchet.

	Overall Lg.	Head Thk.	Turn Req. to Ratchet	Material	Appearance	Mil. Spec.		Each
4-Point Openings



	3/16", 1/4" × 5/16", 3/8"	5 1/2"	3/8" × 3/8"	25°	Chrome-Plated Steel	Polished	Fed. Spec. GGG-W-001405	5473A12	000000


	4-Point and 6-Point Openings



			3/16", 1/4" × 1/2", 9/16"	7"	1/2" × 1/2"	25°	Chrome-Plated Steel	Polished	Fed. Spec. GGG-W-001405	5473A11	00000

Spanner Sockets


Socket Shown With Wrench (Sold Separately)

4-Pin

For easy tightening and loosening, these sockets have pins that grip the slotted sides on bearing nuts. These sockets require less clearance around bearings than standard hook spanner wrenches, so they’re good in tight spaces. Use them with a square-drive wrench handle or a ratchet wrench; they’re not for use with impact wrenches.

								Clearance Dp.
	Drive Size	Overall Lg.	OD	For Nut Size	For Nut Thread Size	For Bearing Nut Specs. Met	For Nut Dia.	Nut , mm	Bolt	Material		Each
4-Pin Socket







				3/8" Square Drive

				3/4"	3"	1 1/8"	—	0.391"-32	ANSI/ABMA 8.2	3/4"	—	2 1/8"	Steel	5510N115	0000000


				7/8"	3"	1 1/4"	—	0.469"-32	ANSI/ABMA 8.2	7/8"	—	2 1/8"	Steel	5510N116	000000
				1"	3"	1 3/8"	—	0.586"-32	ANSI/ABMA 8.2	1"	—	2 1/8"	Steel	5510N117	000000
				1 1/8"	3"	1 1/2"	—	0.664"-32	ANSI/ABMA 8.2	1 1/8"	—	2 1/16"	Steel	5510N118	000000
				1 3/8"	3"	1 13/16"	—	0.781"-32	ANSI/ABMA 8.2	1 3/8"	—	2 1/16"	Steel	5510N119	000000
				1 9/16"	3"	2"	—	0.969"-32	ANSI/ABMA 8.2	1 9/16"	—	2 1/16"	Steel	5510N121	000000
				18 mm	56.2 mm	22 mm	—	M10	DIN 981, ISO 2982	18 mm	6	43 mm	Steel	5510N175	000000
				18 mm	76 mm	28.5 mm	—	M10	ISO 2982-2	18 mm	—	54 mm	Steel	5510N144	000000
				22 mm	56.2 mm	28 mm	—	M12	DIN 981, ISO 2982	22 mm	6	43 mm	Steel	5510N176	000000
				22 mm	76 mm	32 mm	—	M12	ISO 2982-2	22 mm	—	54 mm	Steel	5510N145	000000
				25 mm	76 mm	35 mm	—	M15	ISO 2982-2	25 mm	—	54 mm	Steel	5510N146	000000


				28 mm	76 mm	38 mm	—	M17	ISO 2982-2	28 mm	—	54 mm	Steel	5510N147	000000
				32 mm	76 mm	42 mm	—	M20	ISO 2982-2	32 mm	—	52 mm	Steel	5510N148	000000
				38 mm	76 mm	49.5 mm	—	M25	ISO 2982-2	38 mm	—	52 mm	Steel	5510N151	000000




						1/2" Square Drive

						1 3/4"	3 1/2"	2 3/8"	—	1.173"-18	ANSI/ABMA 8.2	1 3/4"	—	2 1/4"	Steel	5510N122	000000


						2 1/16"	3 1/2"	2 11/16"	—	1.312"-18	ANSI/ABMA 8.2	2 1/16"	—	2 1/4"	Steel	5510N123	000000
						2 1/16"	3 1/2"	2 11/16"	—	1.376"-18	ANSI/ABMA 8.2	2 1/16"	—	2 1/4"	Steel	5510N124	000000
						2 1/4"	3 1/2"	2 7/8"	—	1.563"-18	ANSI/ABMA 8.2	2 1/4"	—	2 1/4"	Steel	5510N125	000000
						2 17/32"	3 1/2"	3 3/16"	—	1.767"-18	ANSI/ABMA 8.2	2 17/32"	—	2 1/4"	Steel	5510N126	000000
						2 11/16"	4"	3 3/8"	—	1.967"-18	ANSI/ABMA 8.2	2 11/16"	—	2 5/8"	Steel	5510N127	000000
						2 31/32"	4"	3 5/8"	—	2.157"-18	ANSI/ABMA 8.2	2 31/32"	—	2 5/8"	Steel	5510N128	000000
						3 5/32"	4"	3 13/16"	—	2.360"-18	ANSI/ABMA 8.2	3 5/32"	—	2 5/8"	Steel	5510N129	000000
						3 3/8"	4"	4"	—	2.548"-18	ANSI/ABMA 8.2	3 3/8"	—	2 5/8"	Steel	5510N131	000000
						3 5/8"	4"	4 1/4"	—	2.751"-18	ANSI/ABMA 8.2	3 5/8"	—	2 5/8"	Steel	5510N132	000000
						25 mm	82 mm	33 mm	M10 M15	—	DIN 1804 DIN 981, ISO 2982	25 mm	7	59 mm	Steel	5510N177	000000


						28 mm	82 mm	36 mm	M12 M17	—	DIN 1804 DIN 981, ISO 2982	28 mm	7	59 mm	Steel	5510N178	000000
						32 mm	82 mm	38 mm	M16 M20	—	DIN 1804 DIN 981, ISO 2982	32 mm	8.4	56 mm	Steel	5510N179	000000
						38 mm	82 mm	46 mm	—	M25	DIN 981, ISO 2982	38 mm	10.4	56 mm	Steel	5510N181	000000
						45 mm	82 mm	53 mm	M26 M30	—	DIN 1804 DIN 981, ISO 2982	45 mm	11	56 mm	Steel	5510N182	000000
						45 mm	90 mm	57 mm	—	M30	ISO 2982-2	45 mm	—	57 mm	Steel	5510N153	000000
						48 mm	90 mm	60 mm	—	M32	ISO 2982-2	48 mm	—	57 mm	Steel	5510N154	000000
						52 mm	82 mm	60 mm	—	M35	DIN 981, ISO 2982	52 mm	11	56 mm	Steel	5510N183	000000
						52 mm	90 mm	64 mm	—	M35	ISO 2982-2	52 mm	—	57 mm	Steel	5510N155	000000
						58 mm	82 mm	68 mm	M38 M40	—	DIN 1804 DIN 981, ISO 2982	58 mm	11	56 mm	Steel	5510N184	000000
						58 mm	90 mm	74 mm	—	M40	ISO 2982-2	58 mm	—	57 mm	Steel	5510N156	000000


						65 mm	90 mm	81 mm	—	M45	ISO 2982-2	65 mm	—	57 mm	Steel	5510N157	000000
						70 mm	90 mm	86 mm	—	M50	ISO 2982-2	70 mm	—	65 mm	Steel	5510N158	000000
						75 mm	102 mm	91 mm	—	M55	ISO 2982-2	75 mm	—	65 mm	Steel	5510N159	000000
						80 mm	102 mm	96 mm	—	M60	ISO 2982-2	80 mm	—	65 mm	Steel	5510N161	000000




						3/4" Square Drive

		3 7/8"	5"			4 1/2"	—	2.933"-12	ANSI/ABMA 8.2	3 7/8"	—	3 1/8"	Steel	5510N133	000000


		4 15/16"	5"			5 9/16"	—	3.730"-12	ANSI/ABMA 8.2	4 15/16"	—	3 1/8"	Steel	5510N137	00000000
		5 3/16"	5"			5 13/16"	—	3.918"-12	ANSI/ABMA 8.2	5 3/16"	—	3 1/8"	Steel	5510N138	00000000
		5 7/16"	6"			6 1/8"	—	4.122"-12	ANSI/ABMA 8.2	5 7/16"	—	3 1/8"	Steel	5510N139	00000000
		70 mm	90 mm			78.5 mm	—	M50	DIN 981, ISO 2982	70 mm	13.8	62 mm	Steel	5510N186	000000
		80 mm	90 mm			88.5 mm	—	M60	DIN 981, ISO 2982	80 mm	15	62 mm	Steel	5510N188	000000
		85 mm	90 mm			94 mm	—	M65	DIN 981, ISO 2982	85 mm	15	62 mm	Steel	5510N189	00000000
		105 mm	127 mm			121 mm	—	M80	ISO 2982-2	105 mm	—	81 mm	Steel	5510N165	00000000
		110 mm	127 mm			126 mm	—	M85	ISO 2982-2	110 mm	—	81 mm	Steel	5510N166	00000000
		130 mm	127 mm			149.5 mm	—	M100	ISO 2982-2	130 mm	—	81 mm	Steel	5510N169	00000000




						1" Square Drive

						92 mm	110 mm	103 mm	—	M70	DIN 981, ISO 2982	92 mm	15	75 mm	Steel	5510N191	00000000


						105 mm	110 mm	116 mm	—	M80	DIN 981, ISO 2982	105 mm	17	75 mm	Steel	5510N193	00000000
						110 mm	110 mm	121 mm	—	M85	DIN 981, ISO 2982	110 mm	19	75 mm	Steel	5510N194	00000000

Ratcheting Box Wrenches


4-Point Opening	Ratchet Handle Repair Kits

A ratchet mechanism allows you to turn fasteners in tight spaces without removing and repositioning the wrench.

Turn Required to Ratchet—The smaller the turn required to ratchet, the less clearance you need to engage the ratchet.

	Box Wrenches										Ratchet Handle Repair Kits
	Drive Size	Overall Lg.	Head OD	Head Thk.	Turn Req. to Ratchet	Material	Appearance	Grip Material		Each		Each
4-Point Opening



		3/8"	7"	1 1/2"	1/2"	15°	Chrome-Plated Steel	Polished	—	54205A22	000000	———	0


		3/8"	7"	1 13/16"	23/32"	25°	Painted Iron	—	—	5519A311	000000	52795A39	000000
		1/2"	7"	1 13/16"	23/32"	25°	Painted Iron	—	—	5519A312	000000	52795A39	00000
		1/2"	7 7/8"	1 9/16"	19/32"	25°	Painted Steel	—	—	7277A14	00000	———	0
		1/2"	9"	2 1/16"	7/8"	25°	Painted Steel	—	Plastic	7277A11	000000	———	0
		1/2"	11"	1 15/16"	7/8"	25°	Painted Iron	—	—	5519A333	000000	52795A38	00000
		1/2"	16"	1 15/16"	51/64"	15°	Chrome-Plated Steel	Polished	—	54715A16	00000	———	0
		5/8"	7"	1 13/16"	23/32"	25°	Painted Iron	—	—	5519A314	000000	52795A39	00000
		5/8"	7 7/8"	1 9/16"	19/32"	25°	Painted Steel	—	—	7277A15	00000	———	0
		5/8"	9"	2 1/16"	7/8"	25°	Painted Steel	—	Plastic	7277A12	000000	———	0
		5/8"	11"	1 15/16"	7/8"	25°	Painted Iron	—	—	5519A335	000000	52795A38	00000


		3/4"	9"	2 1/16"	7/8"	25°	Painted Steel	—	Plastic	7277A13	000000	———	0
		3/4"	13 1/2"	2 1/2"	7/8"	25°	Painted Steel	—	—	7277A16	000000	———	0
		3/4"	16 1/2"	3"	1 7/32"	25°	Painted Iron	—	—	5519A383	000000	52795A37	00000
		3/4"	20"	2 7/8"	1 1/2"	15°	Chrome-Plated Steel	Dull	—	5524A17	000000	———	0
		7/8"	16 1/2"	3"	1 7/32"	25°	Painted Iron	—	—	5519A385	000000	52795A37	00000
		1"	13 1/2"	2 1/2"	7/8"	25°	Painted Steel	—	—	7277A27	000000	———	0
		1"	16 1/2"	3"	1 7/32"	25°	Painted Iron	—	—	5519A387	000000	52795A37	00000
		1"	26"	3 3/4"	1 3/8"	25°	Painted Iron	—	—	5519A388	000000	52795A41	00000
		1 1/8"	16 1/2"	3"	1 7/32"	25°	Painted Iron	—	—	5519A389	000000	52795A37	00000
		1 1/8"	26"	3 3/4"	1 3/8"	25°	Painted Iron	—	—	5519A391	000000	52795A41	00000


		1 1/4"	26"	3 3/4"	1 3/8"	25°	Painted Iron	—	—	5519A392	000000	52795A41	00000

T-Handle Shut-Off Valve Wrenches

4-Point Socket, Two-Prong, and

Open-End Heads Shown Installed

Start and stop flow on valves that don’t have handles. These wrenches have valve keys for three drive styles: 4-point socket, two prong, and open end. They’re often used on underground valves, such as those in waterworks systems, sprinkler lines, and supply lines for water and gas. The handle is wide enough to give you leverage to open valves but narrow enough to fit inside manholes and other tight spaces.

Snap the valve key to the end of the shaft. The other keys snap onto the ends of the handle for storage.

Drive Size
4-Point Socket	Two Prong	Open End	No. of Heads Included	Head Holding Mechanism	Overall Lg., ft.	Material	Color	Features		Each
2"	1"	1 1/8"	3	Ball Detent	3 to 5	Powder-Coated Steel	Red	Telescoping Shaft	6852N11	0000000

Shut-Off Valve Wrenches

These tools fit valve stems to open and close stopcocks, sillcocks, and other valves that don't have a handle.

Drive Size	Overall Lg.	Wrench Opening Shape	Material		Each
1/4", 9/32", 5/16", 11/32"	3 1/8"	4-Point	Steel	2661K51	000000

Lug Socket Wrenches

6-Point

Openings

4-Point

Openings

Turn lug bolts on car and truck wheels. These wrenches have a different socket size at each end.

	Drive Size	Overall Lg.	Material		Each
6-Point and 4-Point Openings



	Heavy Truck	6-Point: 1 1/16", 1 1/4" 1 1/2", 4-Point: 13/16"	27 1/2"	Gray-Painted Steel	6679A3	0000000

Two-Head Deep-Offset Ratcheting Box Wrenches


4-Point Openings

The 25° offset heads provide additional clearance when reaching over obstructions. Ratchet mechanisms allow you to turn fasteners in tight spaces without removing and repositioning the tool.

The smaller the turn required to ratchet, the less clearance you need to engage the ratchet.

	Overall Lg.	Head Offset Angle	Head Thk.	Turn Req. to Ratchet	Material	Appearance	Mil. Spec.		Each
4-Point Openings



	3/16", 1/4" × 5/16", 3/8"	5 1/4"	25°	3/8" × 3/8"	25°	Chrome-Plated Steel	Polished	Fed. Spec. GGG-W-001405	5473A15	000000

4-Point Sockets

4-Point

Socket

Also known as pipe plug sockets, these sockets have a square shape that provides the best possible grip on square fasteners and prevents rounding.

Chrome-Plated Steel

					Standard Clearance
	Drive Size	OD	Socket Shape	For Drive Style	Overall Lg.		Each
3/8" Square Drive



		1/4"	11/16"	4-Point	External Square	1"	5543A14	000000


		9/32"	11/16"	4-Point	External Square	1 1/16"	5544A86	0000
		5/16"	11/16"	4-Point	External Square	1"	5544A301	00000
		11/32"	11/16"	4-Point	External Square	1"	5544A302	00000
		3/8"	3/4"	4-Point	External Square	1"	5544A303	00000

4-Point Impact Socket Sets


	4-Point Socket

Turn square-drive fasteners in several sizes with these socket sets. The sockets fit more tightly on square drives than 8-point sockets, so they’re less likely to slip and chip the edges. Made to withstand the high force of impact drivers, they’re thicker and less rigid than standard sockets, so they’re less likely to fracture.

	Components Included	Includes	Socket Shape		Each
1" Square Drive—Black-Oxide Steel



	7	7 Sockets	Standard: 3/4", 13/16", 7/8", 15/16", 1", 1 1/8", 1 1/2"	4-Point	93272A110	0000000

Wheel Bearing Locknut Socket Sets

Shaped and sized for compatibility with wheel bearing locknuts on trucks and trailers, the sockets in these sets make it easy to install and remove locknuts. They ensure the proper torque setting when you reinstall a locknut on your wheel, so you know it's safe and secure. These are square drive sockets for use with hand-driven tools, not impact wrenches. Made of steel, they grip locknuts tightly and prevent rounding.

Sockets—Chrome-Plated Steel

Plastic Case

4-Pin

6-Pin

Spindle Puller Adapter—Spindle puller adapters remove the front spindle on four-wheel drive trucks so you can access the needle bearing when lubricating and aligning the front wheels.

Plastic Case—Carry sets with a plastic case from one location to the next.

4-Pin Socket and 6-Pin Socket—4-pin and 6-pin sockets fit around retaining locknuts with slots or holes in the side. Also known as spanner sockets, they’re similar to tri-groove sockets but have four or six pins instead of three.

	Components Included	Includes	Container Type	Socket Shape	Drive Size		Each
1/2" Square Drive



	6	1 Adapter 5 Sockets	4-Pin: 2", 2 1/4", 2 3/4" 6-Pin: 2 1/4" Spindle Puller Adapter	Plastic Case	4-Pin, 6-Pin	2", 2 1/4", 2 5/16", 2 3/4"	99939A120	0000000

4-Point Impact Sockets

The square shape provides the best possible grip on square fasteners and prevents rounding. These sockets are made to withstand the high torque and force of impact tools and require a locking retainer. Use with an impact wrench that has a pin-style socket retainer, or use a socket retaining ring with tools that have a hole- or hole-and-ring style socket retainer.

Black-Oxide Steel

	Sockets										Retaining Rings
		Clearance Dp.						Standard Clearance
	Drive Size	Nut	Bolt	Compatible Retaining Ring ID	OD	Socket Shape	For Drive Style	Overall Lg.		Each		Each
3/4" Square Drive



		5/8"	25/64"	15/16"	1 7/16"	1 5/8"	4-Point	External Square	1 7/8"	5552A1	000000	5552A36	00000


		11/16"	7/16"	15/16"	1 7/16"	1 5/8"	4-Point	External Square	1 7/8"	5552A2	00000	5552A36	0000
		13/16"	33/64"	1 1/16"	1 7/16"	1 5/8"	4-Point	External Square	2"	5552A3	00000	5552A36	0000

Budd Wheel Impact Socket Sets

4-Point

Socket

6-Point

Socket

Retaining Rings

Remove and install dual wheels on trucks and trailers with the sockets in these sets. The sockets are extra deep for use with Budd wheels, so you can remove both the nut and the stud with a single socket. Sets include sockets for hex drives to access lug nuts and sockets for square drives to turn the threaded shafts on inner wheels. All are impact sockets, made to withstand the high torque and force of impact tools. Use them with an impact wrench that has a pin-style socket retainer, or use a socket retaining ring with tools that have a hole- or hole-and-ring-style socket retainer.

	Sockets								Retaining Rings
	No. of Pieces	Includes	Color	Overall Lg.	Container Type	Socket Shape		Each		Each
1" Square Drive—Phosphate-Coated Steel



		5	Square Sockets: 17 mm, 20 mm, 21 mm, 13/16" Hex Sockets: 35 mm, 38 mm, 41 mm, 33 mm, 1 1/2"	Black	5 5/8"	Plastic Case	4-Point, 6-Point	90479A110	0000000	5550A611	00000