HiKOKI Framing Nails 3.1 x 90 mm, 21°, 2500 Pieces, 753646

HiKOKI Framing Nails 3.1 x 90 mm, 21°, 2500 Pieces, 753646

HiKOKI article number 753646 are framing nails with a full round head, sized 3.1 x 90 mm and collated in 21° strips. The pack contains 2500 pieces. The steel is bright, with no coating.

The 21° angle decides compatibility

The most important thing when ordering nails is not the length but the collation angle. Nails are gathered into strips at a fixed angle - 21°, 28°, 30°, 34° - and each nailer's magazine accepts only its own angle. These are 21°, meaning machines of the SN21 type, including the HiKOKI NR1890 and equivalent models from other manufacturers. A strip at any other angle either will not enter the magazine or will jam.

Full round head

The head is a complete circle rather than clipped. That distinction carries regulatory weight in a number of countries: building codes require full-head nails for load-bearing timber structures, because a clipped head has less bearing area and less withdrawal resistance. Nails on 21° strips are precisely the full-head type - which is why they are collated at a shallower angle, where the heads do not overlap.

3.1 x 90 mm

A diameter of 3.1 mm and a length of 90 mm is the classic size for timber frame construction. The rule when nailing is that the nail should penetrate the lower member by at least two and a half times its own diameter - at 90 mm into standard framing timber, that condition is met with a wide margin.

Bright steel - where that suits

The steel is uncoated. That is the normal choice for interior structures that stay dry and covered: stud walls, partitions, floor joists, internal formwork. For exterior use - fencing, decking, cladding, anything in contact with moisture - choose a galvanised or hot-dip galvanised version, because bare steel rusts, stains the timber and loses load capacity over time.

Typical applications

Timber frame structures and stud walls, partitions, floor and roof joists, timber formwork, pallets and crates, interior cladding. Using a nailer instead of a hammer on that kind of volume is the difference between a few hours and a full day - and it removes bent nails and struck thumbs from the equation.

Safety

A framing nailer fires metal with considerable energy. Eye protection is essential, including for anyone nearby. Never point the tool at a person, even when empty. Watch for deflection when hitting a knot or another nail - at 90 mm, a nail can come out through the side of the timber.

Technical specifications

Questions and Answers