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Screws City Galvanised Square Twisted Nails Review: Strong, Weather-Ready Fixings?

4mm x 100mm Extra Strong Hardened Heavy Duty Galvanised Square Twisted Nails for Constructions and Woodwork (Pack of 50) N15AB
4.5
[Durable Material]  Zinc galvanised steel resists corrosion for long-lasting strength.
[Compact Size]  4mm diameter by 100mm length fits standard anchoring and fastening applications.
[Enhanced Grip]  Square twisted cross-section provides superior grip and stability in materials.
[Extra Strong Design]  Engineered for increased load-bearing and reduced slippage during installation.
[Value Pack]  Pack of 50 offers bulk savings for projects and professional use.
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Construction nails offering extra-strong hold and corrosion resistance. Builders and DIYers who need reliable fixings for fencing and decking will appreciate the consistent, hardened performance of Screws City Galvanised Square Twisted Nails. Are these the right choice for heavy-duty outdoor projects?

⚡ At a Glance
  • Holding Power: Square cross-section and twisted shank increase mechanical grip in timber
  • Best for: Fencing, decking and general outdoor timber construction work
  • Not ideal for: Fine finishing where very small or discreet fastenings are required

4mm x 100mm galvanised nails, hardened for heavy-duty use. Pack of 50 nails with square, twisted shanks for improved hold.


Superior grip and pull-out resistance - with square twisted shank

Square cross-section nails twisted along their length create a larger contact area and form a mechanical interlock with wood fibres. Hardened steel construction increases shear and tensile strength at the shank.

Greater resistance to loosening under load makes these nails suitable for structural outdoor fixings like fence posts and decking joists.

Longer outdoor life - with zinc galvanised steel

A zinc galvanised finish provides a protective barrier that slows down rust and corrosion when exposed to moisture. The coating helps prevent surface oxidation on bare steel.

Galvanised finish makes the nails appropriate for external projects, helping fastenings last through wet weather and damp conditions.

Reliable results across multiple fixings - thanks to hardened, uniform manufacture

Hardened steel and consistent manufacturing processes yield nails with uniform dimensions and predictable driving behaviour. User feedback notes consistent quality across the pack.

Predictable driving reduces wasted nails and speeds up repetitive tasks, ideal for contractors and DIYers working on larger runs.

✨ The 4 Key Reasons for Screws City Galvanised Square Twisted Nails
  1. Hardened steel - Consistent anchoring with less bending during heavy-duty fastening tasks
  2. Square twisted shank - Stronger bite into timber for improved pull-out resistance
  3. Zinc galvanised finish - Slows corrosion for extended outdoor durability
  4. Pack of 50 uniform nails - Saves time with consistent sizing across multiple fixings
📋 Technical Details at a Glance
  • Category: Home Improvement - Construction Nails
  • Brand: Screws City
  • Model: Galvanised Square Twisted Nails
  • Size: 4mm x 100mm
  • Material: Zinc galvanised steel
❓ Frequently Asked Questions

Q: Are these nails suitable for outdoor use?

A: Yes, zinc galvanised steel provides a protective finish and user feedback specifically mentions successful use on fencing and outdoor projects.

Q: What size are the nails and how many come in a pack?

A: The nails measure 4mm x 100mm and are supplied in a pack of 50.

Q: Are the nails strong enough for heavy-duty construction?

A: Yes, the description states hardened heavy-duty construction and reviews note reliable anchoring, indicating suitability for demanding timber work.

🏆 Our Verdict

These nails are well suited to builders, contractors and keen DIYers tackling outdoor timber projects. A combination of hardened steel, square twisted shank and galvanised finish delivers strong, weather-resistant fixings. The uniform pack of 50 offers dependable, long-lasting performance and good long-term value for regular outdoor work.