UMH 16x5x32 [M4] / N38 - magnetic holder with hook

Product available Ships today (order by 14:00)

UMH 16x5x32 [M4] / N38 - magnetic holder with hook

Name: Dhit sp. z o.o.
Address: Kościuszki 6A, Ożarów Mazowiecki, Poland, 05-850, PL
Telephone: +48 22 499 98 98
Price range: PLN 1-6500
Rating: 5

magnetic holder with hook

Catalog no 310424

GTIN/EAN: 5906301814535

5.00

Diameter Ø

16 mm [±1 mm]

Height

32 mm [±1 mm]

Height

5 mm [±1 mm]

Weight

12 g

Magnetization Direction

↑ axial

Load capacity

7.50 kg / 73.55 N

Coating

[NiCuNi] Nickel

view specifications »

4.88 ZŁ with VAT / pcs + price for transport

3.97 ZŁ net + 23% VAT / pcs

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Carbon Footprint – environmental impact GPSR Regulation – product safety

Want to talk magnets?

Pick up the phone and ask +48 22 499 98 98 alternatively let us know using form the contact section.
Specifications and form of neodymium magnets can be calculated on our online calculation tool.

Same-day processing for orders placed before 14:00.

Technical parameters of the product - UMH 16x5x32 [M4] / N38 - magnetic holder with hook

Specification / characteristics - UMH 16x5x32 [M4] / N38 - magnetic holder with hook

properties

properties	values
Cat. no.	310424
GTIN/EAN	5906301814535
Production/Distribution	Dhit sp. z o.o. ul. Zielona 14 05-850 Ożarów Mazowiecki PL
Country of origin	Poland / China / Germany
Customs code	85059029
Diameter Ø	16 mm [±1 mm]
Height	32 mm [±1 mm]
Height	5 mm [±1 mm]
Weight	12 g
Magnetization Direction	↑ axial
Load capacity ~ ?	7.50 kg / 73.55 N
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±1 mm

Magnetic properties of material N38

Specification / characteristics UMH 16x5x32 [M4] / N38 - magnetic holder with hook

properties	values	units
remenance Br [min. - max.] ?	12.2-12.6	kGs
remenance Br [min. - max.] ?	1220-1260	mT
coercivity bHc ?	10.8-11.5	kOe
coercivity bHc ?	860-915	kA/m
actual internal force iHc	≥ 12	kOe
actual internal force iHc	≥ 955	kA/m
energy density [min. - max.] ?	36-38	BH max MGOe
energy density [min. - max.] ?	287-303	BH max KJ/m
max. temperature ?	≤ 80	°C

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

properties	values	units
Vickers hardness	≥550	Hv
Density	≥7.4	g/cm³
Curie Temperature TC	312 - 380	°C
Curie Temperature TF	593 - 716	°F
Specific resistance	150	μΩ⋅cm
Bending strength	250	MPa
Compressive strength	1000~1100	MPa
Thermal expansion parallel (∥) to orientation (M)	(3-4) x 10^-6	°C^-1
Thermal expansion perpendicular (⊥) to orientation (M)	-(1-3) x 10^-6	°C^-1
Young's modulus	1.7 x 10⁴	kg/mm²

Engineering data and GPSR

Material specification

iron (Fe)	64% – 68%
neodymium (Nd)	29% – 32%
boron (B)	1.1% – 1.2%
dysprosium (Dy)	0.5% – 2.0%
coating (Ni-Cu-Ni)	< 0.05%

Sustainability

recyclability (EoL)	100%
recycled raw materials	~10% (pre-cons)
carbon footprint	low / zredukowany
waste code (EWC)	16 02 16

Safety card (GPSR)

responsible entity

Dhit sp. z o.o.

ul. Kościuszki 6A, 05-850 Ożarów Mazowiecki

tel: +48 22 499 98 98 | e-mail: bok@dhit.pl

batch number/type

id: 310424-2026

Magnet Unit Converter

Magnet pull force

Newtons (N)

Pounds (lbs)

Field Strength

Gauss (Gs)

Induction (T)

Insert a number in one of the inputs, to see the remaining fields convert on the fly.

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A hook magnet is an ideal solution for quick mounting of banners, signs, and markings on steel ceiling structures. It is a universal hanger that you can move to another place at any time without a trace.

Yes, the hook is an element screwed into a bushing with a metric thread (e.g., M4, M5, M6 - check description). Check the thread size in the product specification to select matching replacements.

You will get the greatest force by mounting the magnet on a thick, smooth steel surface vertically. For heavy ceiling ads or tools, we recommend choosing a magnet with a considerable power reserve.

The cup acts as a magnetic armature, intensifying the neodymium action and increasing efficiency. A bare magnet could crack upon sudden application to metal, and the holder is resistant to this.

For outdoor use (in rain), metal hangers may eventually develop a rusty coating over time. If you are looking for an outdoor hanger, choose a model in rubberized or plastic housing, which is tight.

Pros as well as cons of neodymium magnets.

Pros

Besides their tremendous strength, neodymium magnets offer the following advantages:

They virtually do not lose power, because even after ten years the decline in efficiency is only ~1% (according to literature),
They are extremely resistant to demagnetization induced by external magnetic fields,
A magnet with a shiny silver surface has better aesthetics,
They are known for high magnetic induction at the operating surface, which improves attraction properties,
Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the form) even at high temperatures reaching 230°C or more...
Thanks to freedom in forming and the ability to modify to individual projects,
Versatile presence in modern technologies – they find application in hard drives, brushless drives, precision medical tools, also modern systems.
Thanks to their power density, small magnets offer high operating force, in miniature format,

Weaknesses

Disadvantages of neodymium magnets:

To avoid cracks under impact, we suggest using special steel housings. Such a solution secures the magnet and simultaneously improves its durability.
When exposed to high temperature, neodymium magnets suffer a drop in power. Often, when the temperature exceeds 80°C, their power decreases (depending on the size and shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
Due to the susceptibility of magnets to corrosion in a humid environment, we recommend using waterproof magnets made of rubber, plastic or other material resistant to moisture, when using outdoors
Limited possibility of making threads in the magnet and complicated forms - preferred is cover - magnetic holder.
Potential hazard to health – tiny shards of magnets pose a threat, in case of ingestion, which becomes key in the aspect of protecting the youngest. Additionally, small components of these devices are able to disrupt the diagnostic process medical in case of swallowing.
With budget limitations the cost of neodymium magnets is economically unviable,

Pull force analysis

Highest magnetic holding force – what it depends on?

Magnet power was defined for ideal contact conditions, assuming:

using a sheet made of high-permeability steel, functioning as a magnetic yoke
with a thickness of at least 10 mm
with an ideally smooth contact surface
under conditions of no distance (metal-to-metal)
during pulling in a direction vertical to the plane
in neutral thermal conditions

Practical lifting capacity: influencing factors

Real force is influenced by working environment parameters, such as (from priority):

Clearance – existence of any layer (paint, tape, air) acts as an insulator, which lowers power rapidly (even by 50% at 0.5 mm).
Load vector – highest force is reached only during pulling at a 90° angle. The resistance to sliding of the magnet along the plate is standardly several times smaller (approx. 1/5 of the lifting capacity).
Base massiveness – insufficiently thick steel does not close the flux, causing part of the flux to be escaped to the other side.
Material composition – different alloys reacts the same. Alloy additives worsen the attraction effect.
Surface condition – ground elements ensure maximum contact, which increases force. Uneven metal weaken the grip.
Thermal environment – heating the magnet causes a temporary drop of induction. Check the maximum operating temperature for a given model.

Holding force was tested on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, however under shearing force the lifting capacity is smaller. In addition, even a slight gap between the magnet’s surface and the plate reduces the load capacity.

Precautions when working with NdFeB magnets

Maximum temperature

Regular neodymium magnets (grade N) undergo demagnetization when the temperature surpasses 80°C. The loss of strength is permanent.

Allergic reactions

A percentage of the population have a sensitization to Ni, which is the common plating for NdFeB magnets. Extended handling may cause skin redness. It is best to wear safety gloves.

Shattering risk

NdFeB magnets are sintered ceramics, which means they are fragile like glass. Collision of two magnets will cause them shattering into shards.

Serious injuries

Danger of trauma: The attraction force is so immense that it can cause hematomas, crushing, and broken bones. Protective gloves are recommended.

Magnetic interference

An intense magnetic field disrupts the functioning of magnetometers in smartphones and GPS navigation. Keep magnets close to a device to avoid damaging the sensors.

Handling guide

Exercise caution. Neodymium magnets act from a long distance and connect with huge force, often faster than you can react.

ICD Warning

People with a ICD should keep an large gap from magnets. The magnetic field can stop the functioning of the implant.

Adults only

Neodymium magnets are not intended for children. Eating several magnets may result in them connecting inside the digestive tract, which poses a critical condition and necessitates immediate surgery.

Combustion hazard

Powder created during cutting of magnets is flammable. Do not drill into magnets unless you are an expert.

Electronic devices

Avoid bringing magnets near a wallet, computer, or screen. The magnetic field can permanently damage these devices and wipe information from cards.

Safety First! Details about hazards in the article: Magnet Safety Guide.

UMH 16x5x32 [M4] / N38 - magnetic holder with hook

Technical parameters of the product - UMH 16x5x32 [M4] / N38 - magnetic holder with hook

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Material specification

Sustainability

Magnet pull force

Field Strength

View more offers

GM 100x38x13 / N52 - weapon holder

LM TLN - 20 R / N38 - magnetic leviton

UI 45x13x6 [C321] / N38 - badge holder

MW 5x10 / N38 - cylindrical magnet

Pros as well as cons of neodymium magnets.

Pros

Weaknesses

Pull force analysis

Highest magnetic holding force – what it depends on?

Practical lifting capacity: influencing factors

Precautions when working with NdFeB magnets

Maximum temperature

Allergic reactions

Shattering risk

Serious injuries

Magnetic interference

Handling guide

ICD Warning

Adults only

Combustion hazard

Electronic devices

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C