eBay

PRODUCT DESCRIPTION

N42 Neodymium Disc Magnets — 2 x 2 mm

Nickel-Copper-Nickel coated • Axially magnetised • Packs of 1, 10, 25, 50 and 100

The same 2 mm footprint as our thinnest disc, with roughly 80% more holding force. Drill the same 2 mm hole, go a little deeper, get a noticeably firmer join.

Why this size

✓ Same hole, stronger hold. 90 g calculated pull against 50 g for the 2 x 1 mm disc, from an identical 2 mm drill bit. If your part has the depth for it, this is the stronger choice at the same visible footprint.

✓ Honest N42 grade. We state the grade we actually buy. If you see the same disc advertised as N52 at this size, treat the claim with caution.

✓ Calculated pull: 90 g at direct contact. Zero gap, clean flat steel. Magnet-to-magnet also 90 g. Reference value, not a guaranteed working load.

✓ NiCuNi coating. Three-layer nickel-copper-nickel plating, the standard finish for indoor hobby use. Handles handling and superglue without flaking.

✓ Buy the count you need. Single magnets through to 100 per pack, so you are not forced into a bulk bag for one conversion.

What it is

A sintered neodymium (NdFeB) disc, 2 mm across and 2 mm thick, magnetised through its thickness — the poles are the two flat faces, not the edge. Two magnets meet face to face, the join sits flat, and the part seats in the same position every time.

This is the strongest disc we offer in a 2 mm diameter. It is as tall as it is wide, which is close to the practical ceiling for this footprint: adding still more thickness at 2 mm diameter returns very little extra hold. If 90 g is not enough for your part, the answer is a wider magnet, not a taller one.

Supplied as loose magnets in a stack, already assembled pole-to-pole. Keep them that way until you are ready to use them.

Specifications

Diameter	2 mm
Thickness	2 mm
Material	Sintered neodymium iron boron (NdFeB)
Grade	N42
Coating	Nickel-Copper-Nickel (NiCuNi), triple layer
Magnetisation	Axial — poles on the flat faces
Pull to steel (calculated)	90 g / 0.88 N at direct contact, zero gap
Magnet-to-magnet pull	90 g, bare faces in direct contact
Shear (sideways) estimate	Approximately 10 g — sideways load is far weaker than direct pull
Drill bit size	2 mm
3D print hole size	2.1 mm
Maximum working temperature	Approximately 80°C — standard for N42
Country of manufacture	China

Pull figures are calculated reference values for a clean, flat, direct steel contact with no air gap. Paint, primer, glue layers, curved surfaces and any gap at all will reduce holding force, in some cases substantially. Treat these numbers as a way to compare sizes to each other, not as a guaranteed working load.

What you get

▪ The pack size you select from the dropdown: 1, 10, 25, 50 or 100 magnets

▪ Supplied stacked pole-to-pole in a resealable bag

▪ Every magnet is the same 2 x 2 mm N42 disc — the only difference between variants is the count

What this size is for

Well suited to: swappable hands and weapon options on 28mm plastic and resin miniatures • heads, shoulder pads and backpacks • hatches, doors and small turrets on scale model kits • any joint where you want a firmer click than a 1 mm thick magnet gives, without widening the hole.

Choose 2 x 1 mm instead when: the part is too thin to take a 2.2 mm recess, or you are magnetising both halves of a thin joint and the combined depth would break through.

Look at a larger diameter for: arms and torsos (3 mm) • larger parts and vehicle components (4–5 mm) • magnetised bases and transport trays (5–6 mm). Going one size up in diameter gains far more holding force than chasing a higher grade at the same size.

Working with them

Check your wall thickness before you drill. A 2 x 2 mm magnet wants a 2.2 mm deep recess, and if both halves of the joint are magnetised that is 4.4 mm of material gone. On a hollow plastic arm or a thin resin wrist, drill a test piece first — this is the most common way people punch through a part.

Mark the stack before you separate it. Put a dot of permanent marker on one face of the whole stack while it is still assembled. Every magnet then carries the same reference face. Reversing one magnet is the single most common way a magnetised part ends up pushing itself off.

Slide, do not pull. Separating a stack by pulling straight apart takes the full pull force. Sliding one magnet sideways off the stack takes a fraction of it and is much less likely to chip the plating — and at 90 g these grip each other noticeably harder than the thinner disc.

Superglue and accelerator, not epoxy. The deeper recess helps here — there is more side wall for the glue to grip. Thin CA wicked into a snug 2 mm hole holds better than epoxy at this scale.

Keep paint out of the joint. A coat of primer plus two of paint on both mating faces is easily 0.1 mm of gap, and that costs you real holding force. Mask the faces, or fit the magnets after painting.

Honest limitations

▪ 90 g is still a small magnet. Comfortable for plastic and resin parts. Not enough for a heavy metal component, and not the size for holding miniatures to a transport tray.

▪ It needs real depth. 2.2 mm of recess is a lot on a thin part. On slim joints the 2 x 1 mm disc is the more practical magnet even though it holds less.

▪ Thickness has nearly run its course here. At 2 mm diameter, this is about as much hold as the footprint will give. More thickness at the same diameter returns very little — go wider instead.

▪ Sideways load is much weaker than straight pull. Around 10 g. Design the joint so the load pulls the faces apart rather than sliding them.

▪ Neodymium is brittle. These are sintered, ceramic-like magnets. Letting a stack snap together from a distance can chip or crack them.

▪ Indoor use. NiCuNi plating resists handling and normal indoor humidity, but it is not a marine or outdoor coating.

▪ Heat weakens them permanently. Above roughly 80°C an N42 magnet loses strength and does not recover on cooling. Keep them away from ovens, curing lamps and hot cars.

Important safety information

Warning — strong magnets. For adult hobby and technical use. Not a toy.

Swallowing two or more magnets can cause serious internal injury. Magnets can attract to each other through the wall of the intestine, causing blockage or perforation. Seek immediate medical attention if a magnet is swallowed or inhaled. Keep away from children and pets at all times.

Keep magnets away from pacemakers, implanted defibrillators and hearing aids. Keep them away from bank cards, hard drives and other magnetic media.

Handle with care — neodymium is brittle and can chip. Store magnets in their bag, away from loose steel and craft blades.

Dispatch

▪ Same-day dispatch on orders placed before 3 PM, Monday to Friday

▪ Sent from our own unit in Derby — we pick and pack everything ourselves

▪ Magnets are shipped within the UK only

Hobby Heaven

By Hobbyists. For Hobbyists.

We are a small family-run business in Derby, run by people who actually paint, build and convert. We publish the grade we buy and the test conditions behind every pull figure, because that is the information we wanted when we were sourcing magnets for our own projects. If something is not right, message us and we will sort it.

N42 Neodymium Disc Magnets — 2 x 2 mm Nickel-Copper-Nickel coated • Axially magnetised • Packs of 1, 10, 25, 50 and 100 The same 2 mm footprint as our thinnest disc, with roughly 80% more holding force. Drill the same 2 mm hole, go a little deeper, get a noticeably firmer join. Why this size ✓ Same hole, stronger hold. 90 g calculated pull against 50 g for the 2 x 1 mm disc, from an identical 2 mm drill bit. If your part has the depth for it, this is the stronger choice at the same visible footprint. ✓ Honest N42 grade. We state the grade we actually buy. If you see the same disc advertised as N52 at this size, treat the claim with caution. ✓ Calculated pull: 90 g at direct contact. Zero gap, clean flat steel. Magnet-to-magnet also 90 g. Reference value, not a guaranteed working load. ✓ NiCuNi coating. Three-layer nickel-copper-nickel plating, the standard finish for indoor hobby use. Handles handling and superglue without flaking. ✓ Buy the count you need. Single magnets through to 100 per pack, so you are not forced into a bulk bag for one conversion. What it is A sintered neodymium (NdFeB) disc, 2 mm across and 2 mm thick, magnetised through its thickness — the poles are the two flat faces, not the edge. Two magnets meet face to face, the join sits flat, and the part seats in the same position every time. This is the strongest disc we offer in a 2 mm diameter. It is as tall as it is wide, which is close to the practical ceiling for this footprint: adding still more thickness at 2 mm diameter returns very little extra hold. If 90 g is not enough for your part, the answer is a wider magnet, not a taller one. Supplied as loose magnets in a stack, already assembled pole-to-pole. Keep them that way until you are ready to use them. Specifications Diameter 2 mm Thickness 2 mm Material Sintered neodymium iron boron (NdFeB) Grade N42 Coating Nickel-Copper-Nickel (NiCuNi), triple layer Magnetisation Axial — poles on the flat faces Pull to steel (calculated) 90 g / 0.88 N at direct contact, zero gap Magnet-to-magnet pull 90 g, bare faces in direct contact Shear (sideways) estimate Approximately 10 g — sideways load is far weaker than direct pull Drill bit size 2 mm 3D print hole size 2.1 mm Maximum working temperature Approximately 80°C — standard for N42 Country of manufacture China Pull figures are calculated reference values for a clean, flat, direct steel contact with no air gap. Paint, primer, glue layers, curved surfaces and any gap at all will reduce holding force, in some cases substantially. Treat these numbers as a way to compare sizes to each other, not as a guaranteed working load. What you get ▪ The pack size you select from the dropdown: 1, 10, 25, 50 or 100 magnets ▪ Supplied stacked pole-to-pole in a resealable bag ▪ Every magnet is the same 2 x 2 mm N42 disc — the only difference between variants is the count What this size is for Well suited to: swappable hands and weapon options on 28mm plastic and resin miniatures • heads, shoulder pads and backpacks • hatches, doors and small turrets on scale model kits • any joint where you want a firmer click than a 1 mm thick magnet gives, without widening the hole. Choose 2 x 1 mm instead when: the part is too thin to take a 2.2 mm recess, or you are magnetising both halves of a thin joint and the combined depth would break through. Look at a larger diameter for: arms and torsos (3 mm) • larger parts and vehicle components (4–5 mm) • magnetised bases and transport trays (5–6 mm). Going one size up in diameter gains far more holding force than chasing a higher grade at the same size. Working with them Check your wall thickness before you drill. A 2 x 2 mm magnet wants a 2.2 mm deep recess, and if both halves of the joint are magnetised that is 4.4 mm of material gone. On a hollow plastic arm or a thin resin wrist, drill a test piece first — this is the most common way people punch through a part. Mark the stack before you separate it. Put a dot of permanent marker on one face of the whole stack while it is still assembled. Every magnet then carries the same reference face. Reversing one magnet is the single most common way a magnetised part ends up pushing itself off. Slide, do not pull. Separating a stack by pulling straight apart takes the full pull force. Sliding one magnet sideways off the stack takes a fraction of it and is much less likely to chip the plating — and at 90 g these grip each other noticeably harder than the thinner disc. Superglue and accelerator, not epoxy. The deeper recess helps here — there is more side wall for the glue to grip. Thin CA wicked into a snug 2 mm hole holds better than epoxy at this scale. Keep paint out of the joint. A coat of primer plus two of paint on both mating faces is easily 0.1 mm of gap, and that costs you real holding force. Mask the faces, or fit the magnets after painting. Honest limitations ▪ 90 g is still a small magnet. Comfortable for plastic and resin parts. Not enough for a heavy metal component, and not the size for holding miniatures to a transport tray. ▪ It needs real depth. 2.2 mm of recess is a lot on a thin part. On slim joints the 2 x 1 mm disc is the more practical magnet even though it holds less. ▪ Thickness has nearly run its course here. At 2 mm diameter, this is about as much hold as the footprint will give. More thickness at the same diameter returns very little — go wider instead. ▪ Sideways load is much weaker than straight pull. Around 10 g. Design the joint so the load pulls the faces apart rather than sliding them. ▪ Neodymium is brittle. These are sintered, ceramic-like magnets. Letting a stack snap together from a distance can chip or crack them. ▪ Indoor use. NiCuNi plating resists handling and normal indoor humidity, but it is not a marine or outdoor coating. ▪ Heat weakens them permanently. Above roughly 80°C an N42 magnet loses strength and does not recover on cooling. Keep them away from ovens, curing lamps and hot cars. Important safety information Warning — strong magnets. For adult hobby and technical use. Not a toy. Swallowing two or more magnets can cause serious internal injury. Magnets can attract to each other through the wall of the intestine, causing blockage or perforation. Seek immediate medical attention if a magnet is swallowed or inhaled. Keep away from children and pets at all times. Keep magnets away from pacemakers, implanted defibrillators and hearing aids. Keep them away from bank cards, hard drives and other magnetic media. Handle with care — neodymium is brittle and can chip. Store magnets in their bag, away from loose steel and craft blades. Dispatch ▪ Same-day dispatch on orders placed before 3 PM, Monday to Friday ▪ Sent from our own unit in Derby — we pick and pack everything ourselves ▪ Magnets are shipped within the UK only Hobby Heaven By Hobbyists. For Hobbyists. We are a small family-run business in Derby, run by people who actually paint, build and convert. We publish the grade we buy and the test conditions behind every pull figure, because that is the information we wanted when we were sourcing magnets for our own projects. If something is not right, message us and we will sort it.

Specifications

Choose Quantity 10
Brand Hobby Heaven
Thickness 2mm
Type Disc Magnet
Shape Disc
Item Diameter 2 mm
Grade N42
Coating Nickel-Copper-Nickel (NiCuNi)
Magnetisation Axial
Country of Origin China
Colour Silver

ABOUT US

Welcome to Hobby Heaven!

We're a brand built by passionate hobbyists for hobbyists. Our mission is to support all your creative endeavors, whether you're into modeling, wargaming, crafting, or art. As enthusiasts ourselves, we understand the importance of quality supplies at affordable prices.

Our carefully curated selection of high-quality materials is designed to inspire and empower hobbyists and artists alike. We're particularly proud of our innovative, cost-effective basing system - a game-changer for modelers and wargamers looking for professional results without breaking the bank.

At Hobby Heaven, we're dedicated to providing exceptional customer service and ensuring your creative projects are a success. Our team is always ready to offer advice, share techniques, or help you find the perfect supplies for your next masterpiece.

Thank you for choosing us as your trusted partner in creativity. We're excited to be part of your hobby journey!

PAYMENT

We accept payment by PayPal and Credit / Debit cards entered on eBay only. You must be registered with PayPal or eBay to buy from us.

SHIPPING

We primarily use RM24 for shipping, and we can arrange other courier services upon request. For large international shipments, we utilize FedEx. Once your order has been dispatched, you will receive tracking information. For domestic deliveries, the estimated arrival time is usually 1-4 days.

RETURNS

Please ensure that all items are returned in their original condition. Returns are processed within 1-2 business days of receipt. Refunds are issued minus the original shipping cost. All returns are handled in accordance with eBay's policies.

At Hobby Heaven, we strive to provide our customers with the best possible online shopping experience. Our commitment to excellent customer service extends well beyond the delivery of your order.

We encourage you to reach out with any questions or concerns regarding your purchase. The most convenient way to contact us is through the eBay messaging system.

Our dedicated customer service team responds to messages within 24 hours, Monday through Friday, between 8:00 AM and 3:00 PM GMT.

Your satisfaction is our top priority. We're here to help and look forward to assisting you!

WHAT OUR CUSTOMERS ARE SAYING ABOUT US

Good quality item great value and does what it says	law4427 (257 )
Order delivered on time with no issues	crad47 (412 )
Item received. Thanks.	handofganesh (228 )
Order delivered on time with no issues	hariali (168 )
Order delivered on time with no issues	chardun_88 (7 )