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400 black round-head nails 3.5mm x 25mm in bulk pack

400 PCS Round Head Nails 3.5mm x 25mm Black

SKU CH-YKR4-QPEA1

A pack of 400 black round-head nails measuring 3.5 mm by 25 mm for picture hanging, woodworking and general household repairs

  • 400 nails per pack keep large projects supplied
  • 5 mm x 25 mm round heads suit picture hanging and woodwork
  • Galvanised iron resists bending and deformation during use
  • Black finish blends with dark frames and timber
  • Not recommended for storage in humid environments

400 PCS Round Head Nails 3.5mm x 25mm

This pack supplies 400 round-head nails measuring 3.5mm by 25mm in a black finish. They are intended for picture hanging, light woodworking and general household repairs. The galvanised iron construction resists bending during normal use. DIY enthusiasts and homeowners will find the quantity sufficient for multiple small projects.

Sustained load behaviour

Under continuous loading the galvanised iron shank maintains its shape without permanent deformation. The round head distributes clamping force evenly across the workpiece surface. Black coating provides a barrier against surface oxidation in dry indoor conditions. Performance declines if the nails are stored in humid environments before installation.

Installation notes

The 25mm length suits thin timber, plasterboard and softwood without splitting when pilot holes are used. A standard hammer drives the 3.5mm shank cleanly; no specialised tools are required. Common issues include bending if the nail strikes a hidden knot or metal fixing, and rust formation if the finished assembly is exposed to persistent moisture.

Highlights

  • 400 nails per pack keep large projects supplied
  • 5 mm x 25 mm round heads suit picture hanging and woodwork
  • Galvanised iron resists bending and deformation during use
  • Black finish blends with dark frames and timber
  • Not recommended for storage in humid environments

Specifications

No published specifications for this item yet.

Questions about this item

How much heat or noise do the 3.5mm x 25mm round head nails produce when driven all day?

The nails themselves generate no heat or noise; only the hammer or nail gun you use will create sound and vibration during installation.

What tools must I already own to use the 400 black galvanised nails?

You need a hammer or a compatible nail gun that accepts 3.5mm shank nails, plus eye protection and a stable work surface.

Will the 1-inch black nails hold securely in older softwood frames I want to keep?

Yes, the galvanised iron shank and round head give good grip in seasoned softwood, but pre-drill a pilot hole if the timber is brittle to avoid splitting.

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