Cup Magnets | McMaster-Carr

	System of Measurement System of Measurement

Inch

Metric

	OD OD

	Mount Type Mount Type


Screw	Threaded Stud

Threaded Hole	Magnetic

Press Fit

	Number of Mounting Holes Number of Mounting Holes

	Maximum Pull Maximum Pull

	Pull Rating Pull Rating

Medium Pull (10-30 lbs.)

Super Heavy Pull (>60 lbs.)

Heavy Pull (30-60 lbs.)

Light Pull (2-10 lbs.)

Super Light Pull (<2 lbs.)

	Shape Shape


Disc	Rectangle

	Thickness Thickness

	For Screw Size For Screw Size

	Thread Size Thread Size

	Material Material

Neodymium

Ceramic

Alnico

Samarium-Cobalt
(Rare Earth)

	Mounting Hole Style Mounting Hole Style

Straight

Countersunk

	Case Material Case Material

	Case Finish Case Finish

	Hole Diameter Hole Diameter

	Maximum Temperature Maximum Temperature

	Sets of Poles Sets of Poles

	Color Color

	Silver		Gray
	Black		Red
	Dark Brown		White
	Blue

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

RoHS Compliant with
Exemptions

	Fabrication Fabrication

Sintered

Cast

	Grade Grade

	Flux Density Flux Density

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

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About Magnets

Encased Neodymium Magnets with Unthreaded Hole

A metal case protects the magnetic material.

Nonmarring Encased Neodymium
Magnets with Unthreaded Hole

A rubber cover protects the mounting surface as well as the magnet.

Encased Neodymium Magnets with Polished Cover

A smooth metal cover gives these magnets a finished appearance.

Encased Ceramic Magnets with Unthreaded Hole

Ceramic magnets resist demagnetization better than other magnets and are an economical choice. They resist temperatures up to 480° F.

Encased Alnico Magnets with Unthreaded Hole

Alnico magnets resist temperatures up to 420° F.

Encased Neodymium Magnets with Threaded Stud

A steel case concentrates and focuses the magnetic field. It also protects the magnetic material.

Nonmarring Encased Neodymium
Magnets with Threaded Stud

A rubber cover protects the magnet and mounting surface.

Encased Ceramic Magnets with Threaded Stud

Ceramic magnets resist demagnetization better than other magnets and are an economical choice. They resist temperatures up to 140° F.

Encased Neodymium Magnets with Threaded Hole

A metal case protects the magnetic material.

Nonmarring Encased Neodymium
Magnets with Threaded Hole

A rubber cover protects the mounting surface as well as the magnet.

Encased Alnico Magnets with Threaded Hole

Alnico magnets resist temperatures up to 420° F.

Encased Ceramic Magnets with Threaded Hole

These ceramic magnets resist demagnetization better than other magnets, and have a metal case to protect the magnetic material. They resist temperatures up to 175° or 245° F.

Encased Ceramic Magnets

A case protects the magnetic material.

Nonmarring Encased Ceramic Magnets

A plastic case protects the mounting surface as well as the magnet.

Encased Samarium-Cobalt Magnets

Rare earth samarium-cobalt offers a balance of strength and temperature resistance.