Nonmagnetic Hex Keys | McMaster-Carr

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107 Products

Nonmagnetic L-Keys

Fasten screws in everything from MRI machines to semiconductor equipment without worrying about magnetic interference. These L-keys are made from nonmagnetic titanium, so they won't damage electrical components or attract loose metal parts and shavings in your toolbox. With the best strength-to-weight ratio of all our L-keys, they're as strong as steel to resist bending under high torque and weigh up to 50% less.

Long—The most common option, these L-keys have a balanced length for everyday reach and torque.

		Length
	Drive Size	Overall	Relative	Long Leg	Short Leg	Finish		Each
Titanium







				Hex

				0.050"	1 13/16"	Long	1 3/4"	1/2"	__	53945A21	000000


				1/16"	1 7/8"	Long	1 13/16"	5/8"	__	53945A22	00000
				5/64"	2 1/16"	Long	2"	11/16"	__	53945A23	00000
				3/32"	2 1/4"	Long	2 1/8"	3/4"	__	53945A24	00000
				7/64"	2 3/8"	Long	2 1/4"	3/4"	__	53945A25	00000
				1/8"	2 9/16"	Long	2 7/16"	7/8"	__	53945A26	00000
				9/64"	2 7/8"	Long	2 3/4"	15/16"	__	53945A27	00000
				5/32"	3 1/16"	Long	2 7/8"	1"	__	53945A28	00000
				3/16"	3 3/16"	Long	3"	1 1/4"	__	53945A29	00000
				7/32"	3 9/16"	Long	3 5/16"	1 5/16"	__	53945A31	00000
				1/4"	3 7/8"	Long	3 5/8"	1 1/2"	__	53945A32	00000


				5/16"	4 5/16"	Long	4"	1 3/4"	__	53945A33	00000
				3/8"	4 7/8"	Long	4 1/2"	2"	__	53945A34	00000
				1.5 mm	1 15/16"	Long	1 7/8"	9/16"	__	53945A41	00000
				2 mm	2"	Long	1 15/16"	3/4"	__	53945A42	00000
				2.5 mm	2 1/8"	Long	2"	7/8"	__	53945A43	00000
				3 mm	2 5/16"	Long	2 3/16"	7/8"	__	53945A44	00000
				4 mm	2 3/8"	Long	2 1/4"	15/16"	__	53945A45	00000
				5 mm	2 11/16"	Long	2 1/2"	15/16"	__	53945A46	00000
				6 mm	3 1/4"	Long	3"	1"	__	53945A47	00000
				8 mm	3 13/16"	Long	3 1/2"	1 3/8"	__	53945A48	00000


				10 mm	4 15/16"	Long	4 1/2"	2"	__	53945A49	00000

Nonsparking L-Keys

Made of beryllium copper that is Factory Mutual (FM) approved, these L-keys won't create sparks when scraped, struck, or dropped. They help you meet OSHA requirements when fastening screws in hazardous environments where flammable liquid, dust, or gas could be lurking. Use them everywhere from oil and gas refineries to paper mills.

Warning: Do not use these tools in direct contact with acetylene.

Short—A short long leg fits into tight spaces where you have less room to swing, making these ideal for confined areas.

		Length
	Drive Size	Overall	Relative	Long Leg	Short Leg	Finish	Certification	Specs. Met		Each
Beryllium Copper







				Hex

				1/16"	1 13/16"	Short	1 3/4"	1/2"	__	FM Approved	—	6522A11	00000


				5/64"	2"	Short	1 7/8"	3/4"	__	FM Approved	—	6522A12	0000
				3/32"	2"	Short	1 7/8"	3/4"	__	FM Approved	—	6522A13	0000
				1/8"	2 7/16"	Short	2 5/16"	13/16"	__	FM Approved	—	6522A14	0000
				5/32"	2 11/16"	Short	2 1/2"	7/8"	__	FM Approved	—	6522A15	00000
				3/16"	3 1/16"	Short	2 7/8"	7/8"	__	FM Approved	—	6522A16	00000
				7/32"	3 3/8"	Short	3 1/8"	1 1/16"	__	FM Approved	—	6522A17	00000
				1/4"	3 9/16"	Short	3 5/16"	1 1/16"	__	FM Approved	—	6522A18	00000
				5/16"	4 1/16"	Short	3 3/4"	1 3/8"	__	FM Approved	—	6522A31	00000
				3/8"	4 11/16"	Short	4 5/16"	1 7/16"	__	FM Approved	—	6522A21	00000
				1/2"	5 3/4"	Short	5 1/4"	1 3/4"	__	FM Approved	—	6522A23	00000


				3/4"	8"	Short	7 1/4"	2 1/4"	__	FM Approved	—	6522A27	000000
				1.5 mm	2 9/16"	Short	2 1/2"	13/16"	__	FM Approved	DIN 911	6522A51	0000
				2 mm	2 5/8"	Short	2 1/2"	13/16"	__	FM Approved	DIN 911	6522A52	0000
				2.5 mm	2 5/8"	Short	2 1/2"	13/16"	__	FM Approved	DIN 911	6522A53	0000
				3 mm	2 5/8"	Short	2 1/2"	13/16"	__	FM Approved	DIN 911	6522A54	00000
				4 mm	2 15/16"	Short	2 13/16"	1"	__	FM Approved	DIN 911	6522A56	00000
				5 mm	3 5/16"	Short	3 1/8"	1 1/8"	__	FM Approved	DIN 911	6522A57	00000
				6 mm	3 13/16"	Short	3 9/16"	1 5/16"	__	FM Approved	DIN 911	6522A58	00000
				8 mm	4 5/16"	Short	3 15/16"	1 7/16"	__	FM Approved	DIN 911	6522A59	00000

Nonsparking L-Key Sets

Made of beryllium copper that is Factory Mutual (FM) approved, these L-key sets won't create sparks when scraped, struck, or dropped. They help you meet OSHA requirements when fastening screws in hazardous environments where flammable liquid, dust, or gas could be lurking. Use them everywhere from oil and gas refineries to paper mills.

Warning: Do not use these tools in direct contact with acetylene.

Short—A short long leg fits into tight spaces where you have less room to swing, making these ideal for confined areas.

	Finish	Container Type	Specifications Met		Each
Beryllium Copper







	Hex

	10	1/16", 5/64", 3/32", 1/8", 5/32", 3/16", 7/32", 1/4", 5/16", 3/8"	Short	__	Canvas Pouch	FM Approved	6522A41	0000000


	10	1.5 mm, 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm	Short	__	Canvas Pouch	FM Approved	6522A42	000000

Nonsparking 6-Point Socket Sets

Made of aluminum bronze, these sockets satisfy OSHA requirements that specify nonsparking tools for locations where flammable vapors and combustible residues are present. The hex shape grips hex fasteners and prevents rounding.

Warning: Do not use these tools in direct contact with acetylene.

Aluminum Bronze

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



	21	17 Sockets 1 Extension 3 Drive Tools	Standard: 5/16", 3/8", 7/16", 1/2", 9/16", 19/32", 5/8", 11/16", 3/4", 25/32", 13/16", 7/8", 15/16", 1", 1 1/16", 1 1/8", 1 1/4" 10" Long Ratchet Wrench 11" Long Sliding-Head Wrench Handle 12" Long Flex-Head Wrench Handle 10" Long Extension	Plastic Case	6-Point	5/16", 3/8", 7/16", 1/2", 9/16", 19/32", 5/8", 11/16", 3/4", 25/32", 13/16", 7/8", 15/16", 1", 1 1/16", 1 1/8", 1 1/4"	6503A1	000000000

Nonsparking 6-Point Sockets

6-Point

Socket

Warning: Do not use these tools in direct contact with acetylene.

Aluminum Bronze

	Sockets							Ratchet Wrenches
					Standard Clearance
	Drive Size	OD	Socket Shape	For Drive Style	Overall Lg.		Each		Each
1/2" Square Drive



		7/16"	1"	6-Point	External Hex	1 1/4"	6503A22	000000	6503A3	0000000


		1/2"	1"	6-Point	External Hex	1 1/4"	6503A23	00000	6503A3	000000
		9/16"	1"	6-Point	External Hex	1 1/4"	6503A24	00000	6503A3	000000
		5/8"	1 1/16"	6-Point	External Hex	1 1/2"	6503A26	00000	6503A3	000000
		3/4"	1 1/8"	6-Point	External Hex	1 1/2"	6503A28	00000	6503A3	000000
		7/8"	1 3/8"	6-Point	External Hex	1 1/2"	6503A32	00000	6503A3	000000
		15/16"	1 3/8"	6-Point	External Hex	1 1/2"	6503A33	00000	6503A3	000000
		1"	1 1/2"	6-Point	External Hex	1 1/2"	6503A34	00000	6503A3	000000
		1 1/16"	1 5/8"	6-Point	External Hex	1 1/2"	6503A35	00000	6503A3	000000
		1 1/8"	1 5/8"	6-Point	External Hex	1 5/8"	6503A36	00000	6503A3	000000
		1 1/4"	1 3/4"	6-Point	External Hex	1 5/8"	6503A37	000000	6503A3	000000


		10 mm	1"	6-Point	External Hex	1 1/4"	6503A51	00000	6503A3	000000
		13 mm	1"	6-Point	External Hex	1 1/4"	6503A53	00000	6503A3	000000
		17 mm	1 1/16"	6-Point	External Hex	1 1/2"	6503A55	00000	6503A3	000000
		19 mm	1 1/8"	6-Point	External Hex	1 1/2"	6503A57	00000	6503A3	000000
		24 mm	1 1/2"	6-Point	External Hex	1 1/2"	6503A59	00000	6503A3	000000
		30 mm	1 3/4"	6-Point	External Hex	1 5/8"	6503A62	000000	6503A3	000000


		3/4" Square Drive



				1 5/16"	2"	6-Point	External Hex	2"	6490A11	000000	6490A31	000000


				1 7/16"	2 1/4"	6-Point	External Hex	2"	6490A13	000000	6490A31	000000
				1 1/2"	2 1/4"	6-Point	External Hex	2 1/16"	6490A14	000000	6490A31	000000
				1 5/8"	2 1/2"	6-Point	External Hex	2 1/4"	6490A16	000000	6490A31	000000
				1 3/4"	2 1/2"	6-Point	External Hex	2 9/16"	6490A18	000000	6490A31	000000
				2"	2 3/4"	6-Point	External Hex	2 9/16"	6490A22	000000	6490A31	000000

Nonsparking Open-End Wrenches

Round

Opening

Safely turn nuts and bolts in hazardous environments with flammable vapors, liquids, or dust. Made of FM-approved aluminum bronze, these wrenches won't create sparks even when scraped, struck, or dropped. All help you meet OSHA requirements for nonsparking tools and won’t weaken or rust when exposed to moisture and chemicals. Use them everywhere from oil refineries to chemicals plants.

Warning: Do not use these tools in direct contact with acetylene.

Round Opening—The rounded edges spread force evenly to prevent stripping your fasteners. Use them on hex-head fasteners.

	Head Thickness	Certification		Each
Round Opening







	Aluminum Bronze

	1/4" × 5/16"	5 1/4"	15°	1/4"	FM Approved	6499A31	000000


	3/8" × 7/16"	5 1/4"	15°	1/4"	FM Approved	6499A32	00000
	7/16" × 1/2"	5 1/4"	15°	1/4"	FM Approved	6499A11	00000
	1/2" × 5/8"	6"	15°	1/4"	FM Approved	6499A12	00000
	9/16" × 5/8"	6"	15°	5/16"	FM Approved	6499A13	00000
	9/16" × 3/4"	6 3/4"	15°	5/16"	FM Approved	6499A14	00000
	11/16" × 7/8"	8 1/4"	15°	3/8"	FM Approved	6499A36	00000
	3/4" × 13/16"	8 1/8"	15°	3/8"	FM Approved	6499A41	00000
	3/4" × 7/8"	8 1/8"	15°	3/8"	FM Approved	6499A37	00000
	7/8" × 15/16"	9 1/4"	15°	7/16"	FM Approved	6499A17	00000
	1" × 1 1/8"	10 1/4"	15°	1/2"	FM Approved	6499A18	000000


	1 1/16" × 1 1/4"	12 1/2"	15°	1/2"	FM Approved	6499A19	000000
	1 1/8" × 1 5/16"	12 1/2"	15°	1/2"	FM Approved	6499A21	000000

Nonsparking Box Wrenches

Made of aluminum-bronze that is Factory Mutual approved, these wrenches inhibit sparking and are nonmagnetic and corrosion resistant. They satisfy OSHA requirements that specify nonsparking tools for locations where flammable vapors and combustible residues are present.

Warning: Do not use these tools in direct contact with acetylene.

	Overall Lg.	Head Offset Angle	Head Thk.	Material	Certification		Each
12-Point Openings



	7/16" × 1/2"	7 3/4"	15°	5/16" × 5/16"	Aluminum Bronze	FM Approved	6505A31	000000


	1/2" × 9/16"	9 1/2"	15°	7/16" × 1/2"	Aluminum Bronze	FM Approved	6505A13	00000
	9/16" × 5/8"	9 1/2"	15°	7/16" × 1/2"	Aluminum Bronze	FM Approved	6505A15	00000
	3/4" × 7/8"	12 1/4"	15°	9/16" × 5/8"	Aluminum Bronze	FM Approved	6505A33	00000
	15/16" × 1"	14 3/4"	15°	11/16" × 11/16"	Aluminum Bronze	FM Approved	6505A34	000000
	15/16" × 1 1/16"	15 1/4"	15°	11/16" × 11/16"	Aluminum Bronze	FM Approved	6505A21	000000

Nonsparking Striking Box Wrenches

Warning: Do not use these tools in direct contact with acetylene.

	Overall Lg.	Head Thk.	Material	Certification		Each
6-Point Opening



	1 1/4"	6 1/2"	11/16"	Aluminum Bronze	FM Approved	6507A12	0000000


	1 7/16"	7 1/2"	13/16"	Aluminum Bronze	FM Approved	6507A16	000000
	1 1/2"	8 3/4"	1"	Aluminum Bronze	FM Approved	6507A18	000000
	1 5/8"	8 3/4"	1"	Aluminum Bronze	FM Approved	6507A22	000000
	1 13/16"	9 7/8"	1"	Aluminum Bronze	FM Approved	6507A26	000000
	2"	10 5/8"	1 1/16"	Aluminum Bronze	FM Approved	6507A32	000000

Nonsparking 12-Point Impact Sockets

Made of aluminum bronze, these sockets satisfy OSHA requirements that specify nonsparking tools for locations where flammable vapors and combustible residues are present. The 12-point shape quickly positions on hex fasteners. Sockets are made to withstand the high torque and force of impact tools.

Warning: Do not use these tools in direct contact with acetylene.

Aluminum Bronze

		Clearance Dp.					Standard Clearance
	Drive Size	Nut	Bolt	OD	Socket Shape	For Drive Style	Overall Lg.		Each
1/2" Square Drive



		3/4"	7/16"	15/16"	1 1/8"	12-Point	External 12-Point, External Hex	1 7/16"	6527A11	0000000


		15/16"	1/2"	15/16"	1 3/8"	12-Point	External 12-Point, External Hex	1 1/2"	6527A13	000000
		1 1/16"	1/2"	1"	1 5/8"	12-Point	External 12-Point, External Hex	1 1/2"	6527A14	000000
		1 1/8"	5/8"	1"	1 5/8"	12-Point	External 12-Point, External Hex	1 5/8"	6527A15	000000
		1 1/4"	5/8"	1"	1 3/4"	12-Point	External 12-Point, External Hex	1 5/8"	6527A16	000000

Nonmagnetic Screwdrivers

These drivers safely fasten screws on everything from MRI machines to semiconductor equipment without getting pulled inside by strong magnetic forces. The grade 5 titanium shaft is nonmagnetic and resistant to many chemicals.

Also ideal for industrial maintenance, these no-frills screwdrivers withstand years of heavy use in the shop and on the jobsite. The hard plastic handle won't crack or wear out from drops and scrapes. It's also easy to wipe down and won't get sticky or gummy when exposed to oils or chemicals, unlike a soft handle.

Standard Length—The most common screwdriver length for a specific drive size.

Premium—The best screwdrivers available, with tips machined to tight tolerances for the tightest possible fit in fastener recesses. The snug fit means they'll turn screws quickly without wearing screw heads and the driver's tip.

				Shaft
	Drive Size, mm	Relative Lg.	Overall Lg.	Lg.	Overall Wd.	Material	Mfr.		Each
Hex







				Premium

				2	Standard	4 3/4"	3"	3/32"	Titanium	Imprex International	54035A12	000000


				3	Standard	5 1/4"	3"	5/32"	Titanium	Imprex International	54035A13	00000
				4	Standard	6 1/4"	3"	3/16"	Titanium	Imprex International	54035A14	00000
				5	Standard	6 1/4"	3"	1/4"	Titanium	Imprex International	54035A15	00000
				6	Standard	7 1/4"	4"	5/16"	Titanium	Imprex International	54035A16	00000
				7	Standard	7 1/4"	4"	3/8"	Titanium	Imprex International	54035A17	000000
				8	Standard	7 1/2"	6"	3/8"	Titanium	Imprex International	54035A18	000000