N45 Magnets | McMaster-Carr

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131 Products

About Magnets

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

Mount Type

Adhesive Back

Stick in place for fast, tool-free mounting

6 products

Unthreaded Hole

Mount with pins, bolts, or rivets

93 products

Mount Type

Press Fit

Press into drilled holes

9 products

Construction

Encased

Won’t crack or chip when bumped or dropped

3 products

Neodymium Disc Magnets

Unmatched strength in a compact shape. These magnets have the highest strength-to-size ratio of any magnet, delivering powerful pull force even in tight spaces. Their flat, round shape creates a strong, even pull across surfaces for reliable holding power. However, they may lose magnetic strength at high temperatures. Also known 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 these ratings. Do not use for lifting over people.

Magnets


	Magnetized Through Diameter

Magnetized Through Diameter—Magnetized outward from the center, these magnets generate a circular magnetic field. This makes them best for sensors and motors where rotational symmetry and precise angles are key.

Nickel Plated—With a nickel-plated finish, these magnets stand up to solvents, salt water, and chemicals better than uncoated neodymium. The plating may wear off over time, so these are not recommended for applications with a lot of friction or wear.

								Each
	OD	Max. Pull, lbf	Max. Temp., ° F	Magnet Grade	Direction of Magnetization	Finish		1-49	50-Up
1/8" Thick



		1/16"	0.1	175	N45	Through Diameter	Nickel Plated	5862K201	00000	00000


		1/8"	0.7	175	N45	Through Diameter	Nickel Plated	5862K202	0000	0000
		1/4"	2.5	175	N45	Through Diameter	Nickel Plated	5862K203	0000	0000
		3/8"	4.7	175	N45	Through Diameter	Nickel Plated	5862K204	0000	0000
		1/2"	7	175	N45	Through Diameter	Nickel Plated	5862K205	0000	0000
		5/8"	9	175	N45	Through Diameter	Nickel Plated	5862K206	0000	0000
		3/4"	11	175	N45	Through Diameter	Nickel Plated	5862K207	0000	0000
		7/8"	12	175	N45	Through Diameter	Nickel Plated	5862K208	00000	0000
		1"	14	175	N45	Through Diameter	Nickel Plated	5862K209	00000	0000


		1/4" Thick



				1/16"	0.2	175	N45	Through Diameter	Nickel Plated	5862K211	0000	0000


				1/8"	0.9	175	N45	Through Diameter	Nickel Plated	5862K212	0000	0000
				1/4"	3.6	175	N45	Through Diameter	Nickel Plated	5862K213	0000	0000
				3/8"	7	175	N45	Through Diameter	Nickel Plated	5862K214	0000	0000
				1/2"	12	175	N45	Through Diameter	Nickel Plated	5862K215	0000	0000
				5/8"	16	175	N45	Through Diameter	Nickel Plated	5862K216	00000	0000
				3/4"	20	175	N45	Through Diameter	Nickel Plated	5862K217	00000	0000
				7/8"	25	175	N45	Through Diameter	Nickel Plated	5862K218	00000	00000
				1"	29	175	N45	Through Diameter	Nickel Plated	5862K219	00000	00000

Magnets With Adhesive Back


	Magnetized Through Thickness	Adhesive on North Pole	Adhesive on South Pole

Stick in place for fast, tool-free mounting where drilling isn’t practical. The adhesive holds tight without scratching surfaces.

Magnetized Through Thickness—Magnetized from one flat face to the other, these magnets deliver a concentrated magnetic force. They’re best for direct contact with flat surfaces.

								North Pole			South Pole
									Each			Each
	OD	Max. Pull, lbf	Max. Temp., ° F	Magnet Grade	Direction of Magnetization	Adhesive Type	Finish		1-49	50-Up		1-49	50-Up
1/16" Thick



		1/2"	3.4	170	N45	Through Thickness	3M VHB (Very High Bond)	Nickel Plated	7048T15	00000	00000	7048T16	00000	00000


		3/4"	4.5	170	N45	Through Thickness	3M VHB (Very High Bond)	Nickel Plated	7048T17	0000	0000	7048T18	0000	0000

Magnets With Unthreaded Hole

Magnetized Through

Thickness

Magnetized

Through

Thickness

Magnetized

Through

Diameter

Mount with pins, bolts, or rivets. There's no need for threading.

Magnetized Through Thickness—Magnetized from one flat face to the other, these magnets deliver a concentrated magnetic force. They’re best for direct contact with flat surfaces.

										Each
	OD	Hole Dia.	Max. Pull, lbf	Max. Temp., ° F	Magnet Grade	Direction of Magnetization	Mounting Hole Style	Finish		1-49	50-Up
1/8" Thick



		1/4"	0.103"	3.5	175	N45	Through Thickness	Countersunk	Nickel Plated	5862K223	00000	00000


		1/4"	0.107"	1.2	175	N45	Through Thickness	Countersunk	Nickel Plated	5862K931	0000	0000
		1/4"	1/8"	1.5	175	N45	Through Thickness	Straight	Nickel Plated	3360K847	0000	0000
		1/4"	1/8"	2.6	175	N45	Through Diameter	Straight	Nickel Plated	3360K827	0000	0000
		3/8"	1/8"	3.8	175	N45	Through Thickness	Countersunk	Nickel Plated	5862K919	0000	0000
		3/8"	1/8"	4	175	N45	Through Thickness	Straight	Nickel Plated	3360K848	0000	0000
		3/8"	1/8"	4.2	175	N45	Through Diameter	Straight	Nickel Plated	3360K828	0000	0000
		1/2"	1/8"	6	175	N45	Through Thickness	Straight	Nickel Plated	3360K849	0000	0000
		1/2"	1/8"	6	175	N45	Through Diameter	Straight	Nickel Plated	3360K829	0000	0000
		1/2"	0.153"	6	175	N45	Through Thickness	Countersunk	Nickel Plated	5862K224	0000	0000
		5/8"	1/8"	8	175	N45	Through Thickness	Straight	Nickel Plated	3360K851	0000	0000


		5/8"	1/8"	8	175	N45	Through Diameter	Straight	Nickel Plated	3360K831	0000	0000
		5/8"	0.134"	6.8	175	N45	Through Thickness	Countersunk	Nickel Plated	5862K924	0000	0000
		3/4"	1/8"	10	175	N45	Through Thickness	Straight	Nickel Plated	3360K852	0000	0000
		3/4"	1/8"	10	175	N45	Through Diameter	Straight	Nickel Plated	3360K832	0000	0000
		3/4"	0.283"	9	175	N45	Through Thickness	Countersunk	Nickel Plated	5862K225	0000	0000
		7/8"	1/8"	11.5	175	N45	Through Thickness	Straight	Nickel Plated	3360K853	0000	0000
		7/8"	1/8"	11.5	175	N45	Through Diameter	Straight	Nickel Plated	3360K833	00000	0000
		1"	1/4"	13	175	N45	Through Thickness	Straight	Nickel Plated	3360K854	00000	0000
		1"	1/4"	13	175	N45	Through Diameter	Straight	Nickel Plated	3360K834	00000	0000


		3/16" Thick



				3/4"	0.154"	14.7	175	N45	Through Thickness	Countersunk	Nickel Plated	5862K925	0000	0000


				1"	0.211"	22	175	N45	Through Thickness	Countersunk	Nickel Plated	5862K229	00000	00000
				1"	0.275"	22	175	N45	Through Thickness	Countersunk	Nickel Plated	5862K226	00000	00000


				1/4" Thick



						1/4"	1/8"	2.5	175	N45	Through Thickness	Straight	Nickel Plated	3360K855	0000	0000


						1/4"	1/8"	2.5	175	N45	Through Diameter	Straight	Nickel Plated	3360K835	0000	0000
						3/8"	1/8"	6	175	N45	Through Thickness	Straight	Nickel Plated	3360K856	0000	0000
						3/8"	1/8"	6.5	175	N45	Through Diameter	Straight	Nickel Plated	3360K836	0000	0000
						1/2"	1/8"	11	175	N45	Through Thickness	Straight	Nickel Plated	3360K857	0000	0000
						1/2"	1/8"	11	175	N45	Through Diameter	Straight	Nickel Plated	3360K837	0000	0000
						1/2"	0.135"	11	175	N45	Through Thickness	Countersunk	Nickel Plated	5862K227	0000	0000
						5/8"	1/8"	15.5	175	N45	Through Thickness	Straight	Nickel Plated	3360K858	0000	0000
						5/8"	1/8"	15.5	175	N45	Through Diameter	Straight	Nickel Plated	3360K838	00000	0000
						3/4"	1/8"	19.5	175	N45	Through Thickness	Straight	Nickel Plated	3360K859	0000	0000
						3/4"	1/8"	19.5	175	N45	Through Diameter	Straight	Nickel Plated	3360K839	00000	0000


						3/4"	0.166"	18	175	N45	Through Thickness	Countersunk	Nickel Plated	5862K228	0000	0000
						7/8"	1/8"	24	175	N45	Through Thickness	Straight	Nickel Plated	3360K861	00000	0000
						7/8"	1/8"	24	175	N45	Through Diameter	Straight	Nickel Plated	3360K841	00000	00000
						7/8"	0.177"	22	175	N45	Through Thickness	Countersunk	Nickel Plated	5862K926	00000	0000
						1"	0.217"	27	175	N45	Through Thickness	Countersunk	Nickel Plated	5862K927	00000	00000
1"						1/4"	27.5	175	N45	Through Thickness	Straight	Nickel Plated	3360K862	00000	00000
1"	1/4"					27.5	175	N45	Through Diameter	Straight	Nickel Plated	3360K842	00000	00000
1 1/4"	0.194"					30.5	175	N45	Through Thickness	Countersunk	Nickel Plated	5862K932	00000	00000
1 1/4"	0.217"					30	175	N45	Through Thickness	Countersunk	Nickel Plated	5862K928	00000	00000


3/8" Thick



						1 1/2"	0.211"	56	175	N45	Through Thickness	Countersunk	Nickel Plated	5862K933	00000	00000


						1 1/2"	0.266"	55.2	175	N45	Through Thickness	Countersunk	Nickel Plated	5862K929	00000	00000


						1/2" Thick



								1/2"	1/8"	14.4	175	N45	Through Thickness	Straight	Nickel Plated	3360K863	0000	0000


								1/2"	1/8"	14.5	175	N45	Through Diameter	Straight	Nickel Plated	3360K843	00000	0000
								3/4"	0.213"	23	175	N45	Through Thickness	Countersunk	Nickel Plated	5862K231	00000	00000
								1"	0.212"	43	175	N45	Through Thickness	Countersunk	Nickel Plated	5862K232	00000	00000
								2"	0.281"	96.5	175	N45	Through Thickness	Countersunk	Nickel Plated	5862K934	00000	00000


								1" Thick



			1/2"						1/4"	13	175	N45	Through Thickness	Straight	Nickel Plated	3360K864	00000	00000


			1/2"						1/4"	13	175	N45	Through Diameter	Straight	Nickel Plated	3360K844	00000	00000


			1 1/2" Thick



				1/2"						1/4"	13.5	175	N45	Through Thickness	Straight	Nickel Plated	3360K865	00000	00000


				1/2"	1/4"					13.5	175	N45	Through Diameter	Straight	Nickel Plated	3360K845	00000	00000


				2" Thick



										1/2"	1/4"	13.6	175	N45	Through Diameter	Straight	Nickel Plated	3360K846	00000	00000


										1/2"	1/4"	13.7	175	N45	Through Thickness	Straight	Nickel Plated	3360K866	00000	00000

Neodymium Rectangle Magnets

Unmatched strength in a compact shape. These magnets have the highest strength-to-size ratio of any magnet, delivering powerful pull force even in tight spaces. Their flat, rectangular shape creates a strong, even pull across surfaces and fits easily into slots or grooves. However, they may lose magnetic strength at high temperatures. Also known as rare earth magnets.

Magnets


	Magnetized Through Thickness

Magnetized Through Thickness—Magnetized from one flat face to the other, these magnets deliver a concentrated magnetic force. They’re best for direct contact with flat surfaces.

									Each
	Wd.	Lg.	Max. Pull, lbf	Max. Temp., ° F	Magnet Grade	Direction of Magnetization	Finish		1-49	50-Up
1/4" Thick



		1/4"	1/4"	4.4	175	N45	Through Thickness	Nickel Plated	5848K91	00000	00000


		1/2" Thick



				1/2"	1/2"	20	175	N45	Through Thickness	Nickel Plated	5848K92	00000	00000


				1" Thick



						1"	1"	77	175	N45	Through Thickness	Nickel Plated	5848K93	00000	00000

Magnets With Adhesive Back


	Magnetized Through Thickness

Adhesive on

North Pole

Adhesive on

South Pole

Stick in place for fast, tool-free mounting where drilling isn’t practical. The adhesive holds tight without scratching surfaces.

Magnetized Through Thickness—Magnetized from one flat face to the other, these magnets deliver a concentrated magnetic force. They’re best for direct contact with flat surfaces.

									North Pole			South Pole
										Each			Each
	Wd.	Lg.	Max. Pull, lbf	Max. Temp., ° F	Magnet Grade	Direction of Magnetization	Adhesive Type	Finish		1-49	50-Up		1-49	50-Up
0.055" Thick



		1/2"	1"	4.1	170	N45	Through Thickness	3M VHB (Very High Bond)	Nickel Plated	7048T12	00000	00000	7048T11	00000	00000

Magnets With Unthreaded Hole


	Magnetized Through Thickness	Magnetized Through Length

Mount with pins, bolts, or rivets. There's no need for threading.

Magnetized Through Thickness—Magnetized from one flat face to the other, these magnets deliver a concentrated magnetic force. They’re best for direct contact with flat surfaces.

Magnetized Through Length—Magnetized end to end, these magnets channel magnetic energy on the longest axis. This orientation creates deep field penetration and directional pull.

											Each
	Wd.	Hole Dia.	Lg.	Max. Pull, lbf	Max. Temp., ° F	Magnet Grade	Direction of Magnetization	Mounting Hole Style	Finish		1-49	50-Up
1/8" Thick



		1/2"	0.149"	1/2"	8	175	N45	Through Thickness	Countersunk	Nickel Plated	5862K233	00000	00000


		1/2"	0.17"	3/4"	7.4	175	N45	Through Thickness	Countersunk	Nickel Plated	5862K935	0000	0000
		1/2"	0.17"	1"	9.2	175	N45	Through Thickness	Countersunk	Nickel Plated	5862K937	0000	0000
		1/2"	0.202"	2"	13	175	N45	Through Thickness	Countersunk	Nickel Plated	5862K248	00000	00000
		1/2"	0.203"	1"	10	175	N45	Through Thickness	Countersunk	Nickel Plated	5862K245	0000	0000
		3/4"	0.205"	3/4"	12	175	N45	Through Thickness	Countersunk	Nickel Plated	5862K234	0000	0000
		1"	0.275"	1"	16	175	N45	Through Thickness	Countersunk	Nickel Plated	5862K235	00000	00000


		3/16" Thick



				1/2"	0.135"	1/2"	9	175	N45	Through Thickness	Countersunk	Nickel Plated	5862K236	0000	0000


				3/4"	0.167"	3/4"	15	175	N45	Through Thickness	Countersunk	Nickel Plated	5862K237	00000	0000
				1"	0.2"	1"	20	175	N45	Through Thickness	Countersunk	Nickel Plated	5862K238	00000	00000


				1/4" Thick



						1/4"	0.06"	1/4"	4.4	175	N45	Through Thickness	Straight	Nickel Plated	3360K824	0000	0000


						1/4"	0.06"	1/4"	4.4	175	N45	Through Length	Straight	Nickel Plated	3360K821	0000	0000
						1/2"	0.166"	1"	19	175	N45	Through Thickness	Countersunk	Nickel Plated	5862K246	00000	00000
						1/2"	0.167"	1/2"	10	175	N45	Through Thickness	Countersunk	Nickel Plated	5862K239	0000	0000
						1/2"	0.168"	2"	30	175	N45	Through Thickness	Countersunk	Nickel Plated	5862K249	00000	00000
						1/2"	0.17"	3/4"	14	175	N45	Through Thickness	Countersunk	Nickel Plated	5862K936	0000	0000
						1/2"	0.17"	1 1/2"	24	175	N45	Through Thickness	Countersunk	Nickel Plated	5862K938	00000	0000
						1/2"	0.17"	2"	28	175	N45	Through Thickness	Countersunk	Nickel Plated	5862K939	00000	00000
						3/4"	0.168"	3/4"	21	175	N45	Through Thickness	Countersunk	Nickel Plated	5862K241	00000	00000
						1"	0.189"	1"	40	175	N45	Through Thickness	Countersunk	Nickel Plated	5862K242	00000	00000
						1"	0.194"	2"	34.3	175	N45	Through Thickness	Countersunk	Nickel Plated	5862K941	00000	00000


						1/2" Thick



								1/2"	0.16"	1/2"	15	175	N45	Through Thickness	Counterbored	Nickel Plated	5862K221	00000	00000


								1/2"	0.163"	1"	29	175	N45	Through Thickness	Countersunk	Nickel Plated	5862K247	00000	00000
								1/2"	0.166"	2"	52	175	N45	Through Thickness	Countersunk	Nickel Plated	5862K251	00000	00000
								1/2"	3/16"	1/2"	20	175	N45	Through Thickness	Straight	Nickel Plated	3360K825	00000	00000
								1/2"	3/16"	1/2"	20	175	N45	Through Length	Straight	Nickel Plated	3360K822	00000	0000
								3/4"	0.166"	3/4"	25	175	N45	Through Thickness	Countersunk	Nickel Plated	5862K243	00000	00000
								1"	0.194"	1"	53	175	N45	Through Thickness	Counterbored	Nickel Plated	5862K222	00000	00000
								1"	0.194"	2"	74	175	N45	Through Thickness	Countersunk	Nickel Plated	5862K942	00000	00000
								1"	0.214"	1"	53	175	N45	Through Thickness	Countersunk	Nickel Plated	5862K244	00000	00000


								3/4" Thick



3/4"	3/16"									3/4"	43	175	N45	Through Thickness	Straight	Nickel Plated	3360K826	00000	00000


3/4"	3/16"									3/4"	43	175	N45	Through Length	Straight	Nickel Plated	3360K823	00000	00000

Easy On/Off Neodymium Magnets

Turn magnetic force on or off with a simple twist. These magnets grip firmly and release quickly, making them best for fixtures, positioning tasks, and quick-change setups. With the highest strength-to-size ratio of any magnet, these deliver a powerful and even pull force across surfaces.

Magnets

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.

	Lg.	Ht.	Overall Ht.	Max. Pull, lbf	Max. Temp., ° F	Magnet Grade		Each
Nickel-Plated Steel Case



	7/8"	1 1/8"	1 1/4"	2 1/8"	95	180	N45	9649T11	000000


	1 1/4"	1 5/8"	1 1/4"	2 1/8"	150	180	N45	9649T12	00000

Magnets With Unthreaded Hole

Handle

Actuator

Mount with pins, bolts, or rivets. There's no need for threading.

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.

									Mounting					Handle Actuator
	Wd.	Lg.	Ht.	Overall Ht.	Max. Pull, lbf	Max. Temp., ° F	Magnet Grade	Flange Material	Hole Dia.	Flange Lg.	Flange Wd.	Flange Ht.	No. of Mounting Holes		Each
Nickel-Plated Steel Case



		7/8"	1 1/8"	1 1/4"	2 1/4"	95	180	N45	Aluminum	3/16"	2 1/4"	7/8"	1/2"	2	9649T13	000000


		1 1/4"	1 5/8"	1 1/4"	2 1/4"	150	180	N45	Aluminum	3/16"	2 5/8"	1 1/4"	1/2"	2	9649T14	00000

Stepped Neodymium Disc Magnets

Prevent rotation and misalignment in your assemblies. The stepped profile locks components together with tongue-and-groove alignment for a secure, twist-proof hold. With the highest strength-to-size ratio of any magnet, these deliver powerful pull force even in tight spaces.

Press Fit Magnets


Stepped In	Stepped Out	Magnetized Through Thickness

Press magnets into drilled holes for flush mounting. Friction holds them in place, so there's no need for screws or adhesives.

Magnetized Through Thickness—Magnetized from one flat face to the other, these magnets deliver a concentrated magnetic force. They’re best for direct contact with flat surfaces.

		Stepped							Each
	OD	Dp.	Thk.	Max. Pull, lbf	Max. Temp., ° F	Magnet Grade	Direction of Magnetization		1-49	50-Up
Stepped In







				1/4" Thick

				1/2"	0.031"	0.094"	11	175	N45	Through Thickness	2463N107	00000	00000




						3/8" Thick

						3/4"	1/16"	1/8"	23	175	N45	Through Thickness	2463N108	00000	00000


						Stepped Out







										1/4" Thick

										1/2"	0.031"	0.094"	13	175	N45	Through Thickness	2463N109	0000	0000




												3/8" Thick

												3/4"	1/16"	0.188"	31	175	N45	Through Thickness	2463N11	00000	00000

Nonmarring Encased Neodymium Rectangle Magnets

These safeguarded magnets grip surfaces without marking them. The rubber-coated case protects metal housings and control panels from scratches and adds friction for a tight grip. It also shields the magnet 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 Unthreaded Hole

Mount with pins, bolts, or rivets. There's no need for threading.

Chrome-Plated Steel Case—The bright, shiny finish resists salt water and chemicals better than other finishes and is less likely to wear off.

										Each
	Thk.	Hole Dia.	Max. Pull, lbf	Max. Temp., ° F	Magnet Grade	Cover Material	For Screw Size	Color		1-49	50-Up
Chrome-Plated Steel Case



		1/4"	0.129"	14	175	N45	Rubber	No. 5	Black	5679K41	00000	00000


		1/4"	0.15"	27	175	N45	Rubber	No. 6	Black	5679K42	00000	00000
		1/4"	0.177"	41	175	N45	Rubber	No. 8	Black	5679K43	00000	00000

Stepped Neodymium Rectangle Magnets

Press Fit Magnets


Stepped In	Stepped Out	Magnetized Through Thickness

Press magnets into drilled holes for flush mounting. Friction holds them in place, so there's no need for screws or adhesives.

Magnetized Through Thickness—Magnetized from one flat face to the other, these magnets deliver a concentrated magnetic force. They’re best for direct contact with flat surfaces.

			Stepped							Each
	Wd.	Lg.	Dp.	Thk.	Max. Pull, lbf	Max. Temp., ° F	Magnet Grade	Direction of Magnetization		1-49	50-Up
Stepped In







				1/4" Thick

				1/2"	1/2"	0.047"	0.094"	15	175	N45	Through Thickness	2463N101	00000	00000


				1/2"	1"	0.047"	0.094"	21	175	N45	Through Thickness	2463N103	00000	00000


				Stepped Out







								1/4" Thick

								1/2"	1/2"	0.047"	0.094"	13	175	N45	Through Thickness	2463N104	0000	0000


								1/2"	3/4"	0.047"	0.094"	17	175	N45	Through Thickness	2463N105	00000	0000
								1/2"	1"	0.047"	0.094"	20	175	N45	Through Thickness	2463N106	00000	00000