next →
Product available Ships today (order by 14:00) CO2 GPSR PPWR REACH

UMGW 16x13x5 [M4] GW / N38 - magnetic holder internal thread

magnetic holder internal thread

Catalog no 180315

GTIN/EAN: 5906301813712

5.00
Load capacity 5.00 kg / 49.03 N
Diameter Ø
16 mm [±1 mm]
Height
13 mm [±1 mm]
Height
5 mm [±1 mm]
Weight
6.6 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

see technical specifications »

3.09 zł net / pcs

3.80 zł with VAT (23% VAT) / pcs

price for transport

bulk discounts:

Need more?
Quantity
Net
Gross
price from 1 pcs
3.09 zł
3.80 zł
price from 150 pcs
2.90 zł
3.57 zł
price from 500 pcs
2.72 zł
3.34 zł

Frequently asked questions

How much will a magnetic holder hold in practice?
The catalogue value assumes full contact with smooth steel at least 10 mm thick and a perpendicular pull. Thinner sheet, paint, rust and surface irregularities reduce it considerably: on 1 mm sheet about half remains. Lifting and vertical mounting call for an additional safety margin.
Will a holder work on stainless steel?
Not on austenitic grades 304 and 316 — they are effectively non-magnetic. It will not work on aluminium, copper or brass either. Those materials need a mechanical gripper.
Which coating for which conditions?
Nickel-copper-nickel (NiCuNi) is the standard and covers most applications. Epoxy is used for damp environments and outdoor work, zinc is sufficient for dry interiors. Holders in a steel housing or in rubber also protect the magnet against impact.

Guides from the knowledge base

Want to talk magnets?

Call us now +48 888 99 98 98 alternatively let us know using contact form the contact section.
Specifications and structure of a neodymium magnet can be estimated using our power calculator.

Order by 14:00 and we’ll ship today!

Product card - UMGW 16x13x5 [M4] GW / N38 - magnetic holder internal thread

Specification / characteristics - UMGW 16x13x5 [M4] GW / N38 - magnetic holder internal thread

properties
properties values
Cat. no. 180315
GTIN/EAN 5906301813712
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 13 mm [±1 mm]
Height 5 mm [±1 mm]
Weight 6.6 g
Magnetization Direction ↑ axial
Load capacity ~ ? 5.00 kg / 49.03 N
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±1 mm

Magnetic properties of material N38

Specification / characteristics UMGW 16x13x5 [M4] GW / N38 - magnetic holder internal thread
properties values units
Remanence Br ? 12.2-12.6 kGs
Remanence Br ? 1220-1260 mT
Coercivity bHc ? 10.8-11.5 kOe
Coercivity bHc ? 860-915 kA/m
Intrinsic coercivity iHc ≥ 12 kOe
Intrinsic coercivity iHc ≥ 955 kA/m
Energy product BHmax ? 36-38 BH max MGOe
Energy product BHmax ? 287-303 BH max KJ/m
Maximum working temperature ? ≤ 80 °C

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°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 310 °C
Curie Temperature TF 590 °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%

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: 180315-2026
Quick Unit Converter

Magnet pull force

Magnetic Field

Input your value in a single slot to generate results for all other units immediately.

Check out more proposals

MP 41x15x10 / N38 - ring magnet
Product available Ships today (order by 14:00)

MP 41x15x10 / N38 - ring magnet

50.00 zł brutto / pcs
MW 5x5 / N38 - cylindrical magnet
Product available Ships today (order by 14:00)

MW 5x5 / N38 - cylindrical magnet

0.394 zł brutto / pcs
MW 5x30 / N38 - cylindrical magnet
Product available Ships today (order by 14:00)

MW 5x30 / N38 - cylindrical magnet

3.57 zł brutto / pcs
UMS 36x10.5x6.5x8 / N38 - conical magnetic holder
Product available Ships today (order by 14:00)

UMS 36x10.5x6.5x8 / N38 - conical magnetic holder

22.94 zł brutto / pcs
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 threaded hole allows creating a functional mounting point in seconds.
Too long a screw can pass through the bushing and push out or damage the magnet glued into the bottom of the cup. We recommend checking thread depth before assembly and shortening the screw if necessary. You can use a spacer washer or lock nut to limit screwing depth.
They are indispensable when building exhibition stands and shop displays (POS systems). They enable creating demountable connections that can be easily moved. In the workshop, they can serve as mounting points for tools or measuring instruments.
This value applies to perfect adherence with the entire magnet surface. On a thin surface or painted cabinet, the magnet will hold much weaker (even by 50-70%). We always recommend choosing a magnet with power reserve, especially if the surface is not ideal.
The housing has anti-corrosion protection in the form of galvanic zinc or nickel plating. However, these are not fully stainless products and may corrode with constant contact with water. The whole is well protected for standard workshop and industrial applications.

Strengths as well as weaknesses of Nd2Fe14B magnets.

Pros

Besides their exceptional field intensity, neodymium magnets offer the following advantages:
  • They do not lose strength, even over around ten years – the drop in power is only ~1% (theoretically),
  • Neodymium magnets are exceptionally resistant to loss of magnetic properties caused by external field sources,
  • A magnet with a metallic nickel surface is more attractive,
  • They show high magnetic induction at the operating surface, which improves attraction properties,
  • Thanks to resistance to high temperature, they can operate (depending on the shape) even at temperatures up to 230°C and higher...
  • Considering the potential of precise shaping and adaptation to individualized solutions, neodymium magnets can be produced in a wide range of geometric configurations, which amplifies use scope,
  • Versatile presence in electronics industry – they are used in hard drives, drive modules, diagnostic systems, and modern systems.
  • Thanks to efficiency per cm³, small magnets offer high operating force, occupying minimum space,

Weaknesses

Cons of neodymium magnets: weaknesses and usage proposals
  • To avoid cracks under impact, we recommend using special steel holders. Such a solution protects the magnet and simultaneously improves its durability.
  • We warn that neodymium magnets can reduce their strength at high temperatures. To prevent this, we recommend our specialized [AH] magnets, which work effectively even at 230°C.
  • When exposed to humidity, magnets start to rust. To use them in conditions outside, it is recommended to use protective magnets, such as those in rubber or plastics, which prevent oxidation and corrosion.
  • We suggest cover - magnetic mechanism, due to difficulties in producing nuts inside the magnet and complex forms.
  • Health risk related to microscopic parts of magnets pose a threat, in case of ingestion, which is particularly important in the context of child safety. Furthermore, small elements of these magnets are able to be problematic in diagnostics medical when they are in the body.
  • With large orders the cost of neodymium magnets is economically unviable,

Pull force analysis

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

The specified lifting capacity refers to the maximum value, recorded under optimal environment, meaning:
  • using a plate made of low-carbon steel, functioning as a ideal flux conductor
  • whose thickness reaches at least 10 mm
  • with a plane perfectly flat
  • under conditions of ideal adhesion (metal-to-metal)
  • under axial application of breakaway force (90-degree angle)
  • in stable room temperature

Lifting capacity in practice – influencing factors

Please note that the magnet holding may be lower depending on elements below, starting with the most relevant:
  • Space between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by veneer or dirt) significantly weakens the pulling force, often by half at just 0.5 mm.
  • Load vector – maximum parameter is reached only during perpendicular pulling. The force required to slide of the magnet along the plate is standardly many times smaller (approx. 1/5 of the lifting capacity).
  • Wall thickness – thin material does not allow full use of the magnet. Magnetic flux penetrates through instead of converting into lifting capacity.
  • Material composition – not every steel attracts identically. High carbon content worsen the attraction effect.
  • Plate texture – smooth surfaces guarantee perfect abutment, which improves field saturation. Rough surfaces weaken the grip.
  • Thermal environment – heating the magnet causes a temporary drop of induction. It is worth remembering the thermal limit for a given model.

Holding force was checked on a smooth steel plate 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 75%. Moreover, even a slight gap between the magnet and the plate lowers the lifting capacity.

Safe handling of NdFeB magnets
Handling rules

Before starting, check safety instructions. Sudden snapping can destroy the magnet or hurt your hand. Think ahead.

Adults only

Only for adults. Small elements pose a choking risk, causing intestinal necrosis. Store out of reach of children and animals.

Pacemakers

Individuals with a pacemaker have to keep an absolute distance from magnets. The magnetism can stop the operation of the implant.

Compass and GPS

An intense magnetic field negatively affects the operation of magnetometers in phones and navigation systems. Keep magnets close to a device to avoid breaking the sensors.

Permanent damage

Standard neodymium magnets (N-type) lose magnetization when the temperature surpasses 80°C. The loss of strength is permanent.

Dust is flammable

Fire warning: Rare earth powder is explosive. Do not process magnets without safety gear as this risks ignition.

Risk of cracking

Beware of splinters. Magnets can fracture upon violent connection, ejecting sharp fragments into the air. We recommend safety glasses.

Allergy Warning

A percentage of the population suffer from a contact allergy to nickel, which is the common plating for neodymium magnets. Prolonged contact can result in dermatitis. It is best to use safety gloves.

Threat to electronics

Data protection: Strong magnets can damage payment cards and sensitive devices (pacemakers, medical aids, timepieces).

Serious injuries

Big blocks can break fingers instantly. Under no circumstances put your hand betwixt two strong magnets.

Warning! Need more info? Check our post: Why are neodymium magnets dangerous?