UMH 42x9x46 [M6] / N38 - magnetic holder with hook

UMH 42x9x46 [M6] / N38 - magnetic holder with hook - ujęcie 2

Product available Ships today (order by 14:00)

UMH 42x9x46 [M6] / 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 310429

GTIN/EAN: 5906301814580

5.00

Diameter Ø

42 mm [±1 mm]

Height

46 mm [±1 mm]

Height

9 mm [±1 mm]

Weight

90 g

Magnetization Direction

↑ axial

Load capacity

66.00 kg / 647.24 N

Coating

[NiCuNi] Nickel

view specifications »

35.99 ZŁ with VAT / pcs + price for transport

29.26 ZŁ net + 23% VAT / pcs

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Carbon Footprint – environmental impact GPSR Regulation – product safety

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Give us a call +48 888 99 98 98 or get in touch by means of inquiry form through our site.
Specifications as well as structure of magnets can be verified using our magnetic mass calculator.

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Technical parameters of the product - UMH 42x9x46 [M6] / N38 - magnetic holder with hook

Specification / characteristics - UMH 42x9x46 [M6] / N38 - magnetic holder with hook

properties

properties	values
Cat. no.	310429
GTIN/EAN	5906301814580
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	42 mm [±1 mm]
Height	46 mm [±1 mm]
Height	9 mm [±1 mm]
Weight	90 g
Magnetization Direction	↑ axial
Load capacity ~ ?	66.00 kg / 647.24 N
Coating	[NiCuNi] Nickel
Manufacturing Tolerance	±1 mm

Magnetic properties of material N38

Specification / characteristics UMH 42x9x46 [M6] / 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

Technical and environmental data

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%

Environmental data

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: 310429-2026

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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., 66.00 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 cup acts as a magnetic armature, intensifying the neodymium action and increasing efficiency. The housing ensures mechanical durability, which is important in industrial and assembly conditions.

Standard holders are coated with a layer of nickel or zinc, which protects them from corrosion indoors. Metal elements can rust with constant contact with atmospheric moisture.

Advantages as well as disadvantages of neodymium magnets.

Pros

Besides their immense magnetic power, neodymium magnets offer the following advantages:

They retain magnetic properties for almost 10 years – the loss is just ~1% (according to analyses),
They are extremely resistant to demagnetization induced by external magnetic fields,
By covering with a reflective layer of nickel, the element acquires an modern look,
Magnets possess maximum magnetic induction on the active area,
Due to their durability and thermal resistance, neodymium magnets are capable of operate (depending on the shape) even at high temperatures reaching 230°C or more...
In view of the ability of precise shaping and customization to individualized requirements, magnetic components can be produced in a variety of forms and dimensions, which amplifies use scope,
Significant place in high-tech industry – they are commonly used in magnetic memories, electric drive systems, diagnostic systems, and complex engineering applications.
Compactness – despite small sizes they provide effective action, making them ideal for precision applications

Cons

Disadvantages of NdFeB magnets:

They are fragile upon too strong impacts. To avoid cracks, it is worth securing magnets in special housings. Such protection not only protects the magnet but also improves its resistance to damage
We warn that neodymium magnets can reduce their strength at high temperatures. To prevent this, we suggest our specialized [AH] magnets, which work effectively even at 230°C.
They rust in a humid environment - during use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
We recommend a housing - magnetic mechanism, due to difficulties in producing threads inside the magnet and complicated forms.
Health risk resulting from small fragments of magnets can be dangerous, when accidentally swallowed, which becomes key in the context of child safety. Furthermore, tiny parts of these devices are able to be problematic in diagnostics medical when they are in the body.
Due to expensive raw materials, their price exceeds standard values,

Holding force characteristics

Breakaway strength of the magnet in ideal conditions – what contributes to it?

Magnet power was defined for ideal contact conditions, including:

using a sheet made of high-permeability steel, acting as a ideal flux conductor
with a cross-section of at least 10 mm
with a surface perfectly flat
under conditions of gap-free contact (metal-to-metal)
under perpendicular force direction (90-degree angle)
at standard ambient temperature

What influences lifting capacity in practice

In real-world applications, the real power results from a number of factors, presented from most significant:

Distance – existence of any layer (rust, dirt, air) acts as an insulator, which lowers capacity rapidly (even by 50% at 0.5 mm).
Loading method – catalog parameter refers to pulling vertically. When slipping, the magnet exhibits significantly lower power (typically approx. 20-30% of nominal force).
Steel thickness – too thin steel does not accept the full field, causing part of the power to be escaped into the air.
Metal type – different alloys reacts the same. High carbon content worsen the attraction effect.
Surface finish – full contact is obtained only on polished steel. Rough texture reduce the real contact area, weakening the magnet.
Thermal conditions – neodymium magnets have a negative temperature coefficient. At higher temperatures they are weaker, and at low temperatures gain strength (up to a certain limit).

Holding force was checked on the plate surface of 20 mm thickness, when the force acted perpendicularly, in contrast under attempts to slide the magnet the load capacity is reduced by as much as 5 times. Moreover, even a small distance between the magnet and the plate reduces the holding force.

Safe handling of NdFeB magnets

ICD Warning

Life threat: Strong magnets can deactivate pacemakers and defibrillators. Stay away if you have electronic implants.

Serious injuries

Large magnets can smash fingers in a fraction of a second. Do not put your hand between two attracting surfaces.

Compass and GPS

An intense magnetic field interferes with the operation of compasses in phones and GPS navigation. Do not bring magnets close to a device to avoid breaking the sensors.

Nickel allergy

Some people suffer from a contact allergy to Ni, which is the common plating for NdFeB magnets. Frequent touching might lead to skin redness. We strongly advise use safety gloves.

Combustion hazard

Combustion risk: Neodymium dust is highly flammable. Do not process magnets in home conditions as this risks ignition.

Safe distance

Do not bring magnets close to a purse, laptop, or TV. The magnetic field can destroy these devices and wipe information from cards.

Caution required

Handle magnets consciously. Their powerful strength can surprise even professionals. Be vigilant and do not underestimate their force.

Eye protection

Protect your eyes. Magnets can fracture upon violent connection, ejecting sharp fragments into the air. Wear goggles.

No play value

Product intended for adults. Tiny parts can be swallowed, leading to intestinal necrosis. Keep out of reach of kids and pets.

Demagnetization risk

Keep cool. Neodymium magnets are sensitive to heat. If you require resistance above 80°C, inquire about HT versions (H, SH, UH).

Attention! Looking for details? Check our post: Are neodymium magnets dangerous?

UMH 42x9x46 [M6] / N38 - magnetic holder with hook

Technical parameters of the product - UMH 42x9x46 [M6] / N38 - magnetic holder with hook

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Chemical composition

Environmental data

Magnet pull force

Magnetic Field

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SM 18x300 [2xM5] / N42 - magnetic separator

RM R6 GOLF - 13000 Gs / N52 - magnetic distributor

Advantages as well as disadvantages of neodymium magnets.

Pros

Cons

Holding force characteristics

Breakaway strength of the magnet in ideal conditions – what contributes to it?

What influences lifting capacity in practice

Safe handling of NdFeB magnets

ICD Warning

Serious injuries

Compass and GPS

Nickel allergy

Combustion hazard

Safe distance

Caution required

Eye protection

No play value

Demagnetization risk

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C