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

Product available Ships tomorrow

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

technical details »

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

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Call us now +48 22 499 98 98 alternatively send us a note using request form the contact form page.
Specifications and appearance of neodymium magnets can be verified on our magnetic mass calculator.

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Physical properties - 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

Chemical composition

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

Pulling force

Force in kg

lbs

Field Strength

Tesla (T)

Put a figure in a single slot to see the conversion in all other units right away.

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They serve to create mobile suspension points without the need to drill holes in beams. You can use them to organize wires, hang tools, or clothes on metal racks.

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.

The nominal capacity (e.g., 7.50 kg) refers to perpendicular (vertical) force when mounted on the ceiling. When mounting on a wall (vertically), the holding force is much lower due to shear force (the magnet may slide).

The steel housing (cup) shields the magnetic field, directing all its power downwards, onto the contact surface. The housing ensures mechanical durability, which is important in industrial and assembly conditions.

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.

Advantages and disadvantages of Nd₂Fe₁₄B magnets.

Pros

Apart from their strong magnetic energy, neodymium magnets have these key benefits:

They virtually do not lose power, because even after ten years the performance loss is only ~1% (in laboratory conditions),
Magnets very well defend themselves against demagnetization caused by ambient magnetic noise,
Thanks to the metallic finish, the surface of Ni-Cu-Ni, gold-plated, or silver gives an aesthetic appearance,
They feature high magnetic induction at the operating surface, which increases their power,
Thanks to resistance to high temperature, they are able to function (depending on the form) even at temperatures up to 230°C and higher...
In view of the potential of flexible forming and customization to unique solutions, magnetic components can be created in a variety of shapes and sizes, which amplifies use scope,
Huge importance in future technologies – they are utilized in data components, electromotive mechanisms, medical equipment, as well as industrial machines.
Thanks to their power density, small magnets offer high operating force, with minimal size,

Limitations

Disadvantages of neodymium magnets:

They are fragile upon too strong impacts. To avoid cracks, it is worth securing magnets in a protective case. Such protection not only protects the magnet but also improves its resistance to damage
When exposed to high temperature, neodymium magnets experience a drop in force. Often, when the temperature exceeds 80°C, their strength decreases (depending on the size, as well as shape of the magnet). For those who need magnets for extreme conditions, we offer [AH] versions withstanding up to 230°C
When exposed to humidity, magnets start to rust. For applications outside, it is recommended to use protective magnets, such as those in rubber or plastics, which secure oxidation and corrosion.
Due to limitations in creating threads and complicated shapes in magnets, we recommend using a housing - magnetic holder.
Health risk related to microscopic parts of magnets can be dangerous, if swallowed, which becomes key in the context of child health protection. It is also worth noting that small components of these magnets can be problematic in diagnostics medical after entering the body.
With large orders the cost of neodymium magnets can be a barrier,

Pull force analysis

Maximum magnetic pulling force – what affects it?

The lifting capacity listed is a theoretical maximum value conducted under standard conditions:

using a base made of mild steel, serving as a ideal flux conductor
possessing a massiveness of min. 10 mm to ensure full flux closure
with an ideally smooth touching surface
without the slightest air gap between the magnet and steel
under vertical force vector (90-degree angle)
at room temperature

Lifting capacity in real conditions – factors

Effective lifting capacity impacted by specific conditions, including (from most important):

Gap between surfaces – every millimeter of separation (caused e.g. by varnish or dirt) significantly weakens the pulling force, often by half at just 0.5 mm.
Loading method – declared lifting capacity refers to detachment vertically. When attempting to slide, the magnet holds significantly lower power (typically approx. 20-30% of nominal force).
Substrate thickness – to utilize 100% power, the steel must be sufficiently thick. Thin sheet limits the lifting capacity (the magnet "punches through" it).
Material type – ideal substrate is high-permeability steel. Hardened steels may have worse magnetic properties.
Surface finish – full contact is obtained only on smooth steel. Any scratches and bumps reduce the real contact area, weakening the magnet.
Temperature influence – high temperature reduces pulling force. Exceeding the limit temperature can permanently demagnetize the magnet.

Lifting capacity was measured with the use of a polished steel plate of suitable thickness (min. 20 mm), under vertically applied force, however under shearing force the load capacity is reduced by as much as fivefold. In addition, even a small distance between the magnet and the plate lowers the lifting capacity.

H&S for magnets

Nickel allergy

Studies show that the nickel plating (standard magnet coating) is a common allergen. For allergy sufferers, prevent direct skin contact or choose encased magnets.

Electronic hazard

Device Safety: Strong magnets can ruin payment cards and delicate electronics (pacemakers, hearing aids, mechanical watches).

Magnetic interference

Navigation devices and smartphones are extremely susceptible to magnetism. Close proximity with a strong magnet can permanently damage the internal compass in your phone.

Do not give to children

Neodymium magnets are not toys. Eating multiple magnets can lead to them attracting across intestines, which constitutes a critical condition and requires urgent medical intervention.

Heat sensitivity

Do not overheat. Neodymium magnets are sensitive to temperature. If you require resistance above 80°C, inquire about special high-temperature series (H, SH, UH).

Material brittleness

Watch out for shards. Magnets can fracture upon violent connection, ejecting sharp fragments into the air. Eye protection is mandatory.

ICD Warning

Life threat: Strong magnets can deactivate heart devices and defibrillators. Stay away if you have medical devices.

Bone fractures

Watch your fingers. Two large magnets will snap together immediately with a force of several hundred kilograms, destroying anything in their path. Exercise extreme caution!

Do not drill into magnets

Mechanical processing of NdFeB material carries a risk of fire hazard. Neodymium dust reacts violently with oxygen and is difficult to extinguish.

Immense force

Be careful. Rare earth magnets attract from a long distance and connect with huge force, often quicker than you can move away.

Security! Learn more about hazards in the article: Safety of working with magnets.

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

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

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Chemical composition

Sustainability

Pulling force

Field Strength

Other products

ZM XMAG2 210 elementów - magnetic toy

MW 35x5 / N38 - cylindrical magnet

MP 20x8/4x3 / N38 - ring magnet

UMGW 42x20x9 [M6] GW / N38 - magnetic holder internal thread

Advantages and disadvantages of Nd2Fe14B magnets.

Pros

Limitations

Pull force analysis

Maximum magnetic pulling force – what affects it?

Lifting capacity in real conditions – factors

H&S for magnets

Nickel allergy

Electronic hazard

Magnetic interference

Do not give to children

Heat sensitivity

Material brittleness

ICD Warning

Bone fractures

Do not drill into magnets

Immense force

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Advantages and disadvantages of Nd₂Fe₁₄B magnets.