Magnet Screws | McMaster-Carr

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85 Products

About Magnets

Choose a magnet with the right strength, material, and temperature resistance for your application.

Threaded Encased Neodymium Disc Magnets


4	5	6	7

Thread powerful and durable magnets into position, then readjust if needed. A protective case shields these from the elements as well as cracks and chips when handling, mounting, or sweeping them. With the highest strength-to-size ratio of any magnet, they deliver powerful pull force even in tight spaces.

Warning: Maximum pull ratings are based on direct contact with rust-free, unpainted iron surfaces. Variations in material condition will significantly reduce these ratings. Do not use for lifting over people.

Magnets With Threaded Stud


4	5	6	7

Screw into tapped holes for secure mounting that’s also removable.

Zinc-Plated Steel Case—Withstands occasional exposure to moisture.

	Style	Thk.	OD	Overall Ht.	Max. Pull, lbf	Max. Temp., ° F	Magnet Grade	Thread Size	Choose a Stud Length	Pkg. Qty.		Pkg.
Zinc-Plated Steel Case



		4	13/64"	5/8"	1/2"	18	175	N42	8-32	0.3"	1	3506K61	00000


		4	9/32"	51/64"	0.576"	28	175	N42	8-32	0.3"	1	3506K62	0000
		4	5/16"	63/64"	0.615"	55	175	N42	10-24	3/8"	1	3506K63	0000
		4	5/16"	1 17/64"	0.685"	75	175	N42	1/4"-20	3/8"	1	3506K64	0000
		4	5/16"	1 27/64"	0.815"	100	175	N42	1/4"-20	1/2"	1	3506K65	00000
		4	23/64"	1 21/32"	0.856"	150	175	N42	5/16"-18	1/2"	1	3506K66	00000
		4	29/64"	1 57/64"	0.953"	175	175	N42	5/16"-18	1/2"	1	3506K67	00000
		4	4.5 mm	10 mm	12.5 mm	5	175	Not Rated	M4 × 0.7 mm	8 mm	1	1079N511	0000
		4	4.5 mm	13 mm	12.5 mm	13	175	Not Rated	M5 × 0.8 mm	8 mm	1	1079N512	0000
		4	4.5 mm	16 mm	12.5 mm	21	175	Not Rated	M6 × 1 mm	8 mm	1	1079N513	00000
		4	6 mm	20 mm	16 mm	31	175	Not Rated	M6 × 1 mm	10 mm	1	1079N514	00000


		4	7 mm	25 mm	17 mm	44	175	Not Rated	M6 × 1 mm	10 mm	1	1079N515	00000
		4	7 mm	32 mm	17 mm	78	175	Not Rated	M6 × 1 mm	10 mm	1	1079N516	00000
		4	9 mm	40 mm	20 mm	100	175	N35	M6 × 1 mm	11 mm	1	3506K71	00000
		5	4 mm	10 mm	—	5	170	Not Rated	M6 × 1 mm	12 mm, 16 mm, 20 mm, 25 mm, 30 mm	1	1079N41	00000
		5	4 mm	10 mm	16 mm	5	170	Not Rated	M6 × 1 mm	12 mm, 16 mm, 20 mm, 25 mm, 30 mm	1	1079N27	00000
		5	4 mm	10 mm	20 mm	5	170	Not Rated	M6 × 1 mm	12 mm, 16 mm, 20 mm, 25 mm, 30 mm	1	1079N28	00000
		5	4 mm	10 mm	24 mm	5	170	Not Rated	M6 × 1 mm	12 mm, 16 mm, 20 mm, 25 mm, 30 mm	1	1079N29	00000
		5	4 mm	10 mm	29 mm	5	170	Not Rated	M6 × 1 mm	12 mm, 16 mm, 20 mm, 25 mm, 30 mm	1	1079N31	00000
		5	4 mm	10 mm	34 mm	5	170	Not Rated	M6 × 1 mm	12 mm, 16 mm, 20 mm, 25 mm, 30 mm	1	1079N32	00000
		5	5.3 mm	13 mm	—	11	170	Not Rated	M8 × 1.25 mm	16 mm, 20 mm, 25 mm, 30 mm, 40 mm	1	1079N42	00000


		5	5.3 mm	13 mm	21 mm	11	170	Not Rated	M8 × 1.25 mm	16 mm, 20 mm, 25 mm, 30 mm, 40 mm	1	1079N33	00000
		5	5.3 mm	13 mm	25 mm	11	170	Not Rated	M8 × 1.25 mm	16 mm, 20 mm, 25 mm, 30 mm, 40 mm	1	1079N34	00000
		5	5.3 mm	13 mm	30 mm	11	170	Not Rated	M8 × 1.25 mm	16 mm, 20 mm, 25 mm, 30 mm, 40 mm	1	1079N35	00000
		5	5.3 mm	13 mm	35 mm	11	170	Not Rated	M8 × 1.25 mm	16 mm, 20 mm, 25 mm, 30 mm, 40 mm	1	1079N36	00000
		5	5.3 mm	13 mm	45 mm	11	170	Not Rated	M8 × 1.25 mm	16 mm, 20 mm, 25 mm, 30 mm, 40 mm	1	1079N37	00000
		5	6.4 mm	17 mm	—	16	170	Not Rated	M10 × 1.5 mm	20 mm, 25 mm, 30 mm, 40 mm, 50 mm	1	1079N43	00000
		5	6.4 mm	17 mm	26 mm	16	170	Not Rated	M10 × 1.5 mm	20 mm, 25 mm, 30 mm, 40 mm, 50 mm	1	1079N11	00000
		5	6.4 mm	17 mm	31 mm	16	170	Not Rated	M10 × 1.5 mm	20 mm, 25 mm, 30 mm, 40 mm, 50 mm	1	1079N12	00000
		5	6.4 mm	17 mm	36 mm	16	170	Not Rated	M10 × 1.5 mm	20 mm, 25 mm, 30 mm, 40 mm, 50 mm	1	1079N13	00000
		5	6.4 mm	17 mm	46 mm	16	170	Not Rated	M10 × 1.5 mm	20 mm, 25 mm, 30 mm, 40 mm, 50 mm	1	1079N14	00000


		5	6.4 mm	17 mm	56 mm	16	170	Not Rated	M10 × 1.5 mm	20 mm, 25 mm, 30 mm, 40 mm, 50 mm	1	1079N15	00000
		5	7.5 mm	19 mm	—	24	170	Not Rated	M12 × 1.75 mm	25 mm, 30 mm, 40 mm, 50 mm, 60 mm	1	1079N44	00000
		5	7.5 mm	19 mm	33 mm	24	170	Not Rated	M12 × 1.75 mm	25 mm, 30 mm, 40 mm, 50 mm, 60 mm	1	1079N16	00000
		5	7.5 mm	19 mm	38 mm	24	170	Not Rated	M12 × 1.75 mm	25 mm, 30 mm, 40 mm, 50 mm, 60 mm	1	1079N17	00000
		5	7.5 mm	19 mm	48 mm	24	170	Not Rated	M12 × 1.75 mm	25 mm, 30 mm, 40 mm, 50 mm, 60 mm	1	1079N18	00000
		5	7.5 mm	19 mm	58 mm	24	170	Not Rated	M12 × 1.75 mm	25 mm, 30 mm, 40 mm, 50 mm, 60 mm	1	1079N19	00000
		5	7.5 mm	19 mm	68 mm	24	170	Not Rated	M12 × 1.75 mm	25 mm, 30 mm, 40 mm, 50 mm, 60 mm	1	1079N21	00000
		5	10 mm	24 mm	—	32	170	Not Rated	M16 × 2 mm	30 mm, 40 mm, 50 mm, 60 mm, 80 mm	1	1079N45	00000
		5	10 mm	24 mm	40 mm	32	170	Not Rated	M16 × 2 mm	30 mm, 40 mm, 50 mm, 60 mm, 80 mm	1	1079N22	00000
		5	10 mm	24 mm	50 mm	32	170	Not Rated	M16 × 2 mm	30 mm, 40 mm, 50 mm, 60 mm, 80 mm	1	1079N23	00000


		5	10 mm	24 mm	60 mm	32	170	Not Rated	M16 × 2 mm	30 mm, 40 mm, 50 mm, 60 mm, 80 mm	1	1079N24	00000
		5	10 mm	24 mm	70 mm	32	170	Not Rated	M16 × 2 mm	30 mm, 40 mm, 50 mm, 60 mm, 80 mm	1	1079N25	00000
		5	10 mm	24 mm	90 mm	32	170	Not Rated	M16 × 2 mm	30 mm, 40 mm, 50 mm, 60 mm, 80 mm	1	1079N26	00000
		6	1/4"	1/2"	—	6	170	N35	—	—	1	3506K23	0000
		6	1/4"	5/8"	—	16	170	N35	—	—	1	3506K25	0000
		6	1/4"	3/4"	—	16	170	N35	—	—	1	3506K53	0000
		6	17/64"	1"	—	26	170	N35	—	—	1	3506K51	0000
		6	17/64"	1 1/8"	—	30	170	N35	—	—	1	3506K29	00000
		6	17/64"	1 1/2"	—	35	170	N35	—	—	1	3506K52	00000
		6	9/32"	7/8"	—	23	170	N35	—	—	1	3506K27	0000

7	0.337"	15/32"	—	4.4	180	N42	—	0.394"	2	3506K34	0000
7	25/64"	19/32"	—	4.4	180	N42	—	0.453"	2	3506K38	00000

Nonmarring Threaded Encased Neodymium Disc Magnets

Thread magnets into position and readjust them without marking surfaces. The rubber-coated case protects metal housings and control panels from scratches and adds friction for a tight grip. It also shields the magnets from cracks and chips caused by drops and bumps. With the highest strength-to-size ratio of any magnet, these deliver powerful pull force even in tight spaces.

Warning: Maximum pull ratings are based on direct contact with rust-free, unpainted iron plate. Variations in material condition will significantly reduce these ratings. Do not use for lifting over people.

Magnets With Threaded Stud

Image of Product. Front orientation. Magnets. Disc, Encased, Neodymium, Nonmarring, Threaded-Stud Mount.

Screw into tapped holes for secure mounting that’s also removable.

Zinc-Plated Steel Case—Withstands occasional exposure to moisture.

Nickel-Plated Steel Case—Offers similar corrosion resistance to chrome plating to withstand salt water and chemicals. However, nickel is more likely to wear off over time.

											Each
	Thk.	OD	Stud Lg.	Overall Ht.	Max. Pull, lbf	Max. Temp., ° F	Cover Material	Thread Size	Color		1-49	50-Up
Zinc-Plated Steel Case



		6 mm	31 mm	12 mm	18 mm	20	170	Rubber	M5 × 0.8 mm	Black	7132T52	000000	000000


		10.5 mm	50 mm	20 mm	31 mm	101	170	Rubber	M6 × 1 mm	Black	7132T53	00000	00000
		11.5 mm	64 mm	20 mm	32 mm	202	170	Rubber	M8 × 1.25 mm	Black	7132T54	000000	00000


		Nickel-Plated Steel Case



				15/64"	1 11/16"	1"	1.24"	20	170	Rubber	1/4"-20	Black	7132T24	00000	00000


				5/16"	2 9/16"	1"	1 5/16"	32	170	Rubber	1/4"-20	Black	7132T25	00000	00000
				21/64"	3 1/2"	1"	1 21/64"	100	170	Rubber	1/4"-20	Black	7132T26	00000	00000
				6 mm	22 mm	7 mm	13 mm	11	170	Rubber	M4 × 0.7 mm	Black	7132T213	00000	00000

Threaded Encased Ceramic Disc Magnets

Image of Product. 3. Front orientation. Magnets. Encased, Ferrite Ceramic, Disc, Threaded-Stud Mount, Style 3.

Thread our most economical magnets into position, then readjust if needed. With built-in durability, a protective case shields these from cracks and chips caused by bumps and drops. Ceramic magnets deliver a cost-effective balance of corrosion and temperature resistance. However, they are not as strong as rare earth magnets.

Warning: Maximum pull ratings are based on direct contact with rust-free, unpainted iron surfaces. Variations in material condition will significantly reduce holding strength. Do not use for lifting over people.

Magnets With Threaded Stud

Screw into tapped holes for secure mounting that’s also removable.

Zinc-Plated Steel Case—Withstands occasional exposure to moisture.

Nickel-Plated Steel Case—Offers similar corrosion resistance to chrome plating to withstand salt water and chemicals. However, nickel is more likely to wear off over time.

Powder-Coated Steel Case—The coating creates a corrosion-resistant barrier for outdoor applications.

	Thk.	OD	Stud Lg.	Overall Lg.	Max. Pull, lbf	Max. Temp., ° F	Magnet Grade	Thread Size		Each
Zinc-Plated Steel Case



	3	3/16"	2 1/4"	1"	1 3/16"	5	300	C8	5/16"-18	5819K41	000000


	Nickel-Plated Steel Case



			3	5/16"	63/64"	0.413"	47/64"	8	120	C8	10-24	5819K111	0000


			3	5/16"	1 17/64"	0.413"	47/64"	13	120	C8	1/4"-20	5819K115	0000
			3	5/16"	1 27/64"	0.55"	55/64"	20	120	C8	1/4"-20	5819K119	0000
			3	23/64"	1 21/32"	1/2"	55/64"	25	120	C8	5/16"-18	5819K124	0000
			3	29/64"	1 57/64"	1/2"	61/64"	35	120	C8	5/16"-18	5819K128	0000
			3	1/2"	2"	1/2"	1"	55	120	C8	1/4"-20	5819K133	00000
			3	5/8"	2 1/2"	0.846"	1 15/32"	68	120	C8	3/8"-16	5819K137	00000
			3	49/64"	3"	0.87"	1 5/8"	130	120	C8	3/8"-16	5819K142	00000
			3	8 mm	25 mm	8 mm	16 mm	8	120	C8	M5 × 0.8 mm	5819K113	0000
			3	8 mm	32 mm	10 mm	18 mm	13	120	C8	M6 × 1 mm	5819K117	0000
			3	8 mm	36 mm	10 mm	18 mm	20	120	C8	M6 × 1 mm	5819K122	0000


			3	9 mm	42 mm	10 mm	19 mm	25	120	C8	M6 × 1 mm	5819K126	0000
			3	11.5 mm	48 mm	10 mm	21.5 mm	35	120	C8	M8 × 1.25 mm	5819K131	0000
			3	13 mm	50.8 mm	10 mm	23 mm	55	120	C8	M8 × 1.25 mm	5819K135	00000
			3	16 mm	63.5 mm	11.5 mm	27.5 mm	68	120	C8	M8 × 1.25 mm	5819K139	00000
			3	19 mm	76.2 mm	15 mm	34 mm	130	120	C8	M10 × 1.5 mm	5819K144	00000


			Powder-Coated Steel Case



					3	5/16"	63/64"	0.413"	47/64"	4	120	C8	10-24	5819K112	0000


					3	5/16"	1 17/64"	0.413"	47/64"	9	120	C8	1/4"-20	5819K116	0000
					3	23/64"	1 21/32"	1/2"	55/64"	21	120	C8	5/16"-18	5819K125	0000
					3	29/64"	1 57/64"	1/2"	61/64"	29	120	C8	5/16"-18	5819K129	0000
					3	1/2"	2"	1/2"	1"	48	120	C8	1/4"-20	5819K134	00000
					3	5/8"	2 1/2"	0.846"	1 15/32"	60	120	C8	3/8"-16	5819K138	00000
					3	49/64"	3"	0.87"	1 5/8"	110	120	C8	3/8"-16	5819K143	00000
					3	8 mm	25 mm	8 mm	16 mm	4	120	C8	M5 × 0.8 mm	5819K114	0000
					3	8 mm	32 mm	10 mm	18 mm	9	120	C8	M6 × 1 mm	5819K118	0000
					3	9 mm	42 mm	10 mm	19 mm	21	120	C8	M6 × 1 mm	5819K127	0000
					3	11.5 mm	48 mm	10 mm	21.5 mm	29	120	C8	M8 × 1.25 mm	5819K132	0000


					3	13 mm	50.8 mm	10 mm	23 mm	48	120	C8	M8 × 1.25 mm	5819K136	00000
					3	16 mm	63.5 mm	11.5 mm	27.5 mm	60	120	C8	M8 × 1.25 mm	5819K141	00000
					3	19 mm	76.2 mm	15 mm	34 mm	110	120	C8	M10 × 1.5 mm	5819K145	00000

Magnetic Male Round Standoffs

Mount or reposition internally-threaded parts instantly—these magnetic-backed standoffs snap onto metal surfaces. Install on displays, test rigs, and tight spaces where permanent mounting isn't practical.

Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.

Rubber-Coated Stainless Steel—Reduce corrosion and prevent slipping. These standoffs withstand exposure to saltwater and chemicals, but are not as strong as steel.

Alnico Magnet—Retain their magnetic strength, even when exposed to high temperatures.

Neodymium Magnet—Our strongest magnets. These support heavy connections, but have lower heat resistance than Alnico magnets.

	Lg., mm	Max. Pull, lbf	Magnet Material	Max. Temp., ° F		Each
Zinc-Plated Steel







		M3 × 0.5 mm

		20	6	7	0.4	Alnico	840	93527A104	000000


		20	6	7	1.3	Neodymium	175	93527A110	0000
		20	8	7	0.8	Alnico	840	93527A105	00000
		20	8	7	2.6	Neodymium	175	93527A111	0000




				M4 × 0.7 mm

				20	10	8	1.9	Alnico	840	93527A106	00000


				20	10	8	5.3	Neodymium	175	93527A112	0000
				20	13	8	2.6	Alnico	840	93527A107	00000
				20	13	8	13	Neodymium	175	93527A113	0000
				20	16	10	4.4	Alnico	840	93527A108	00000
				20	16	10	20	Neodymium	175	93527A114	00000




						M6 × 1 mm

						25	20	10	8.9	Alnico	840	93527A109	00000


						25	20	10	30	Neodymium	175	93527A115	00000


						Rubber-Coated Stainless Steel







										M4 × 0.7 mm

										14	10	6	2.1	Neodymium	175	93527A101	00000




												M6 × 1 mm

												16	13	10	3.3	Neodymium	175	93527A102	00000




														M10 × 1.5 mm

20	20													14	10	Neodymium	175	93527A103	00000

Magnetic Routing Ring Bases

Temporarily mount routing rings and other threaded components to steel and iron surfaces.

Thread Size	Base Dia.	Overall Ht.	Material	Temp. Range, ° F	Wt. Cap., lb.	Certification		Each
10-24	1 1/8"	1/2"	Zinc-Plated Steel	-40 to 175	40	UL Listed	1706T76	00000
1/4"-20	1 1/2"	1"	Zinc-Plated Steel	-40 to 175	90	UL Listed	1706T75	0000

Nonmarring Threaded Encased Neodymium Rectangle Magnets

Thread rectangular magnets into position without marking surfaces, then readjust if needed. Their rubber-coated case protects metal housings and control panels from scratches and adds friction for a tight grip. It also shields the magnets from cracks and chips caused by drops any bumps. With the highest strength-to-size ratio of any magnet, these deliver powerful pull force even in tight spaces.

Magnets With Threaded Stud

Screw into tapped holes for secure mounting that’s also removable.

Zinc-Plated Steel Case—Withstands occasional exposure to moisture.

										Each
	Thk., mm	Stud Lg., mm	Overall Ht., mm	Max. Pull, lbf	Max. Temp., ° F	Cover Material	Thread Size	Color		1-49	50-Up
Zinc-Plated Steel Case



		27.5	26	54	670	170	Rubber	M10 × 1.5 mm	Black	7132T55	0000000	0000000


		35	30	65	787	170	Rubber	M10 × 1.5 mm	Black	7132T56	000000	000000