X

This site uses cookies to provide and improve your shopping experience. If you want to benefit from this improved service, please opt-in.
For more information, please see our Cookies Page.
More Info I opt-in to a better browsing experience

US Dollars

0 Items $0.000

Special Offers

By Temperature

By Strength

By Shape
Block
Countersunk Ring
Cube
Disk
Hook
Pot
Ring
Rod

By Size

Length	Outer Diameter	Diameter
2mm 3mm 4mm 5mm 6mm 7mm 8mm 9mm 10mm 11mm 12mm 13mm 14mm 15mm 16mm 19mm 20mm 22mm 25mm 26mm 29mm 30mm 32mm 34mm 35mm 40mm 42mm 45mm 46mm 55mm 78mm 120mm 297mm	3mm 4mm 5mm 6mm 8mm 10mm 11mm 12mm 13mm 17mm 19mm 20mm 21mm 23mm 50mm	1mm 2mm 3mm 4mm 5mm 6mm 7mm 8mm 9mm 10mm 11mm 12mm 13mm 14mm 15mm 16mm 17mm 18mm 20mm 22mm 24mm 25mm 27mm 29mm 30mm 32mm 66mm 135mm

Shop By Category

Home › 4mm

Your Selection
No Selection
Inner Diameter: 4mm
Clear All

Refine by Brand
- Guy's Magnets

Refine by Shape
- Ring

Refine by Outer Diameter
- 8mm
- 12mm
- 13mm
- 19mm
- 20mm

Refine by Inner Diameter
- 3mm
- 4mm
- 5mm

Refine by Thickness / Depth

Refine by Pull (grams)
- 500g - 1kg
- 1kg - 2.5kg

Refine by Grade
- N35

Refine by MGOe
- 35

Refine by Max Temp
- 80C / 176F

Refine by Coating
- Nickel
- Zinc

Refine by British
- N

4mm

Sort by

Guy's Magnets 8 mm x 4.2 mm x 4 mm neodymium ring

Prices From: $0.251 - $0.634

Guy's Magnets 3/4" x 1/8" x 1/16" neodymium ring

Prices From: $0.489 - $1.097

Guy's Magnets 1/2" x 1/8" x 1/8" neodymium ring

Prices From: $0.066 - $1.216

Back to top

5 Star

Products in the 4mm category have been rated 5 stars based on 1 reviews

© Copyright Guys Magnets 2026

Website by Visualsoft, Shopify Platinum Partner