UMGW 36x18x8 [M8] GW / N38 - magnetic holder internal thread

Product available Ships today (order by 14:00)

UMGW 36x18x8 [M8] GW / N38 - magnetic holder internal thread

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

magnetic holder internal thread

Catalog no 180319

GTIN/EAN: 5906301813750

5.00

Diameter Ø

36 mm [±1 mm]

Height

18 mm [±1 mm]

Height

8 mm [±1 mm]

Weight

52 g

Load capacity

40.00 kg / 392.27 N

23.99 ZŁ with VAT / pcs + price for transport

19.50 ZŁ net + 23% VAT / pcs

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Pick up the phone and ask +48 22 499 98 98 otherwise get in touch using our online form through our site.
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UMGW 36x18x8 [M8] GW / N38 - magnetic holder internal thread

Specification / characteristics UMGW 36x18x8 [M8] GW / N38 - magnetic holder internal thread

properties

properties	values
Cat. no.	180319
GTIN/EAN	5906301813750
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	36 mm [±1 mm]
Height	18 mm [±1 mm]
Height	8 mm [±1 mm]
Weight	52 g
Load capacity ~ ?	40.00 kg / 392.27 N
Manufacturing Tolerance	±1 mm

Magnetic properties of material N38

Specification / characteristics UMGW 36x18x8 [M8] GW / N38 - magnetic holder internal thread

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 specification and ecology

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: 180319-2025

Measurement Calculator

Force (pull)

Kilograms (kg)

Force (N)

Pounds (lbs)

Magnetic Field

Tesla (T)

Put a figure in a single field to generate results in the other fields immediately.

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The steel cup acts as an armature, concentrating the magnetic flux and increasing capacity even several times. Thanks to this, the holder is more durable, resistant, and safer to mount. The bushing with internal thread allows easy screwing of any element (bolt, hook, handle).

The most important rule is choosing the appropriate length of the screw being screwed in. Neodymium magnets are brittle, and direct pressure from a screw can cause them to crack or detach. It is worth securing the thread with thread glue if the connection is to be durable and resistant to vibrations.

These holders are commonly used in industry, advertising, and construction for quick mounting. They serve as a base for hooks, cable holders, organizers, and lighting systems. In the workshop, they can serve as mounting points for tools or measuring instruments.

The stated force is the maximum laboratory value obtained on a clean, smooth sheet. Air gap (rust, paint, dirt) also drastically lowers holding power. We always recommend choosing a magnet with power reserve, especially if the surface is not ideal.

Standard coating effectively protects against moisture in indoor conditions. For outdoor applications, we recommend additional protection with varnish or choosing a rubberized (hermetic) version. The whole is well protected for standard workshop and industrial applications.

Strengths as well as weaknesses of Nd₂Fe₁₄B magnets.

Advantages

In addition to their long-term stability, neodymium magnets provide the following advantages:

Their magnetic field remains stable, and after around ten years it decreases only by ~1% (theoretically),
Neodymium magnets are characterized by highly resistant to demagnetization caused by magnetic disturbances,
The use of an metallic layer of noble metals (nickel, gold, silver) causes the element to be more visually attractive,
Neodymium magnets ensure maximum magnetic induction on a small surface, which ensures high operational effectiveness,
Neodymium magnets are characterized by very high magnetic induction on the magnet surface and are able to act (depending on the shape) even at a temperature of 230°C or more...
Possibility of custom forming and adapting to complex requirements,
Wide application in innovative solutions – they find application in HDD drives, motor assemblies, diagnostic systems, also technologically advanced constructions.
Thanks to concentrated force, small magnets offer high operating force, with minimal size,

Cons

Problematic aspects of neodymium magnets: application proposals

Brittleness is one of their disadvantages. Upon intense impact they can break. We recommend keeping them in a strong case, which not only protects them against impacts but also raises their durability
We warn that neodymium magnets can reduce their power at high temperatures. To prevent this, we recommend our specialized [AH] magnets, which work effectively even at 230°C.
They rust in a humid environment - during use outdoors we suggest using waterproof magnets e.g. in rubber, plastic
We recommend cover - magnetic mechanism, due to difficulties in producing nuts inside the magnet and complicated forms.
Possible danger to health – tiny shards of magnets pose a threat, in case of ingestion, which becomes key in the context of child safety. Furthermore, tiny parts of these magnets can disrupt the diagnostic process medical in case of swallowing.
Due to expensive raw materials, their price is higher than average,

Lifting parameters

Maximum lifting force for a neodymium magnet – what it depends on?

Information about lifting capacity is the result of a measurement for ideal contact conditions, taking into account:

with the contact of a yoke made of low-carbon steel, ensuring maximum field concentration
whose transverse dimension reaches at least 10 mm
with an polished touching surface
under conditions of ideal adhesion (surface-to-surface)
under perpendicular force vector (90-degree angle)
in neutral thermal conditions

Lifting capacity in practice – influencing factors

Real force is influenced by specific conditions, such as (from most important):

Space between magnet and steel – even a fraction of a millimeter of separation (caused e.g. by varnish or dirt) drastically reduces the pulling force, often by half at just 0.5 mm.
Load vector – maximum parameter is reached only during pulling at a 90° angle. The shear force of the magnet along the surface is standardly several times smaller (approx. 1/5 of the lifting capacity).
Substrate thickness – to utilize 100% power, the steel must be adequately massive. Paper-thin metal limits the lifting capacity (the magnet "punches through" it).
Metal type – different alloys attracts identically. Alloy additives worsen the attraction effect.
Surface finish – full contact is obtained only on polished steel. Any scratches and bumps create air cushions, weakening the magnet.
Thermal conditions – neodymium magnets have a negative temperature coefficient. When it is hot they lose power, and in frost gain strength (up to a certain limit).

Holding force was checked on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, whereas under parallel forces the load capacity is reduced by as much as 5 times. In addition, even a slight gap between the magnet’s surface and the plate decreases the load capacity.

Precautions when working with neodymium magnets

Avoid contact if allergic

Some people have a sensitization to nickel, which is the common plating for NdFeB magnets. Frequent touching might lead to dermatitis. We strongly advise use safety gloves.

Fire warning

Powder produced during cutting of magnets is self-igniting. Do not drill into magnets unless you are an expert.

Magnets are brittle

NdFeB magnets are sintered ceramics, meaning they are very brittle. Collision of two magnets will cause them shattering into shards.

Data carriers

Intense magnetic fields can erase data on credit cards, hard drives, and other magnetic media. Stay away of at least 10 cm.

Handling guide

Before use, check safety instructions. Uncontrolled attraction can break the magnet or hurt your hand. Think ahead.

Power loss in heat

Standard neodymium magnets (N-type) undergo demagnetization when the temperature surpasses 80°C. Damage is permanent.

Bone fractures

Mind your fingers. Two powerful magnets will join instantly with a force of massive weight, crushing anything in their path. Be careful!

Pacemakers

Medical warning: Neodymium magnets can turn off pacemakers and defibrillators. Stay away if you have medical devices.

Compass and GPS

Note: rare earth magnets generate a field that disrupts precision electronics. Keep a separation from your mobile, device, and GPS.

Choking Hazard

Always store magnets away from children. Choking hazard is high, and the consequences of magnets connecting inside the body are life-threatening.

Danger! Learn more about risks in the article: Magnet Safety Guide.

UMGW 36x18x8 [M8] GW / N38 - magnetic holder internal thread

Want to negotiate?

UMGW 36x18x8 [M8] GW / N38 - magnetic holder internal thread

Magnetic properties of material N38

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Material specification

Sustainability

Force (pull)

Magnetic Field

Other products

MW 15x10 / N38 - cylindrical magnet

SM 32x125 [2xM8] / N52 - magnetic separator

BM 510x180x70 [4x M8] - magnetic beam

HH 16x5.3 [M3] / N38 - through hole magnetic holder

Strengths as well as weaknesses of Nd2Fe14B magnets.

Advantages

Cons

Lifting parameters

Maximum lifting force for a neodymium magnet – what it depends on?

Lifting capacity in practice – influencing factors

Avoid contact if allergic

Fire warning

Magnets are brittle

Data carriers

Handling guide

Power loss in heat

Bone fractures

Pacemakers

Compass and GPS

Choking Hazard

Physical properties of sintered neodymium magnets Nd₂Fe₁₄B at 20°C

Strengths as well as weaknesses of Nd₂Fe₁₄B magnets.