Metric square thin nuts for compact assemblies, aimed at precise M3 fixings and neat low-profile joins, introduced as Screws City M3 Square Thin Nuts. Confidence when assembling model kits, electronics and 3D-printed projects comes from consistent sizing and a slim profile. Are these the best fasteners for small-scale builds and tight spaces?
⚡ At a Glance
- • Fit and Finish: Precise M3 threading, 1.8mm thin profile and zinc-plated steel finish
- • Best for: Model-makers, electronics hobbyists and 3D-print assemblies requiring compact fixings
- • Not ideal for: Heavy-load structural joints or applications needing specialised locking nuts
M3 metric square thin nuts, zinc-plated steel with a 0.5mm pitch and 1.8mm nut height. Supplied in a 50-pack with a 5.5mm spanner size.
Low-Profile Fixings - With 1.8mm Thin Nut Height
A 1.8mm nut height cuts the vertical space needed for a fastening, while the M3 inside diameter and 0.5mm pitch maintain standard thread engagement. The square form sits flush in slots, reducing rotational play.
Reduced stack height keeps assemblies compact and tidy, ideal where clearance is limited. Square profile helps keep fastenings aligned during tightening.
Predictable Thread Engagement - Thanks to 0.5mm M3 Pitch
The 0.5mm pitch matches standard M3 bolts and screws, ensuring compatible mating without cross-threading when tolerances are correct. Consistent machining and sizing aid repeatable results.
Reliable fit with common M3 fasteners makes assembly quicker and reduces rework. Consistent threads help maintain secure joins in delicate projects.
Everyday Corrosion Resistance - With Zinc-Plated Steel
Zinc plating provides a protective barrier over steel, helping slow surface corrosion under normal indoor conditions. The coating also gives a uniform finish that resists minor handling wear.
Durable finish keeps parts looking good and functioning longer for typical hobby and light-duty uses. Suitable for indoor electronics, models and fixtures where heavy exposure is unlikely.
✨ The 4 Key Reasons for Screws City M3 Square Thin Nuts
- Pack of 50 - Plenty for batch builds and repeated fittings without shortfalls
- Spanner size 5.5mm - Matches common mini wrench sizes for easy tightening
- Consistent sizing - Ensures predictable assembly tolerances across all parts used
- Helps 3D-printed slots - Simplifies creating neat square insertions in 3D prints
📋 Technical Details at a Glance
- Category: Metric square thin nuts
- Material: Steel
- Finish: Zinc plated
- Thread size: M3
- Pitch: 0.5mm
❓ Frequently Asked Questions
Q: What size are these nuts?
A: Inside diameter measures 3mm, with an M3 thread pitch of 0.5mm and a nut height of 1.8mm.
Q: Are these suitable for 3D-printed assemblies?
A: User feedback notes they simplify creating square slots in 3D prints, making them suitable for that application when slot dimensions match the nut.
Q: What tool do I need to tighten them?
A: A 5.5mm spanner matches the nut flats for tightening and adjustment.
🏆 Our Verdict
The Screws City M3 Square Thin Nuts suit model-makers, electronics hobbyists and anyone needing compact M3 fixings for small assemblies. Thin 1.8mm height and zinc-plated steel make them practical where space is limited and corrosion resistance matters. Reliable sizing and a 50-pack supply deliver solid long-term value for recurring small-scale projects.
