We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Four chrome round magnets with black knobs in a pack

Avery HMKR-45X4 ceramic magnet with knob 16 lb 1.43" 4-pack

SKU CH-WZ7V-RCZNN MPN HMKR-45X4

Four ceramic round-base magnets with easy-grip knobs hold up to 16 lb each on clean, flat metal surfaces

  • Main colorMulti-Color
  • Color when dryChrome and Black
  • Container typeCan
  • Item count1
  • Product subcategoryAdhesives & Fasteners
  • Product typeStickers
  • 16 lb pull on clean flat metal surfaces
  • Easy-grip knobs for smooth placement and removal
  • Non-scratch liners protect metal surfaces
  • Ceramic ferrite sintered at 2000°F for reliable performance
  • USA-based manufacturer trusted since 1976

Ceramic round base magnets with knobs

This four-pack supplies ceramic (ferrite) magnets each rated at 16 lb pull on clean, flat steel. The nickel-plated steel cups protect the magnetic face and add corrosion resistance, while the integrated knobs give a secure grip for quick placement and removal.

Knobs and non-scratch liners

The moulded knobs eliminate the need to pry the magnet off by its edge, reducing the risk of chipping the ceramic material. Non-scratch liners on the cup base prevent marking metal surfaces such as whiteboards, tool cabinets or machinery guards during repeated repositioning.

16 lb pull per magnet

Holding force is specified at 16 lb on a clean, flat ferrous surface; actual capacity drops with paint, rust, air gaps or angled loads. Buyers who need higher shear strength, through-gap reach or a different mounting style should evaluate alternative magnetic assemblies.

How it compares

Measured against everything we stock in Glues, Tapes & Fasteners, at today’s prices. Recalculated every night.

Price $13.99
Typical for this category: the median of 702 items is $13.99.

Specifications

Product
Brand nameAvery
Product lineHMKR-45 × 4 Master Magnetics
Model nameHMKR-45 × 4
Product typeStickers
Product colorMulti-Color
Main colorMulti-Color
Color when dryChrome and Black
Size & build
Size or dimensions1.5 in × 1.5 in × 1 in
In the box
Item count1
More details
Non-toxicNo

Questions about this item

Will the nickel-plated steel cup or the ceramic magnet lose its 16 lb pull strength over time?

The ceramic magnet is sintered at 2000°F and precision-ground, giving it stable magnetic properties that do not degrade under normal indoor use.

What is the first limit reached when holding a load continuously on a vertical metal surface?

The 16 lb pull rating is the maximum static hold on clean, flat metal; exceeding it or mounting on curved, painted, or dirty surfaces will cause the magnet to slide first.

How much heat does the magnet generate when left attached all day?

The magnet is passive and produces no heat; the nickel-plated cup and non-scratch liner remain at ambient temperature during continuous use.

More in Glues, Tapes & Fasteners

Similar items