• Rectangular tapered shank. Cut from steel plate, it wedges against the timber fibres for exceptional holding power.
• Blunt tapered point. Crushes rather than splits, so it also holds in soft blockwork and raked mortar joints.
• Bright carbon steel. For dry interior and period work; corrosion rating 1.
• Sizes 50 to 100mm. Covers heavy first-fix and traditional floor fixing.
• Traditional cut-nail look. The right fixing for period, reclaimed and heritage work.

Cut clasp nails are the old-school heavy-grip nail. Cut from steel plate with a tapered rectangular shank, they hold far harder than a wire nail and bite into soft blockwork and mortar as well as timber.

• Fixing timber battens to blockwork and mortar joints.
• Heavy first-fix carpentry.
• Floorboards and period joinery.
• Reclaimed and heritage work where the traditional look matters.

• Brand: TIMCO
• Material: Carbon steel
• Finish: Bright
• Type: Cut clasp (rectangular tapered)
• Point: Blunt tapered
• Sizes: 50, 65, 75 and 100mm
• Corrosion rating: 1 (clean, dry, low humidity)
• Pack: Loose by weight

What are cut clasp nails used for?

Heavy-grip fixing of timber to timber, and to soft blockwork or mortar joints, plus traditional floor and period joinery. The tapered rectangular shape grips far harder than a round wire nail.

Can you nail into blockwork or mortar with cut clasp nails?

Yes, into soft blockwork and raked mortar joints. The blunt tapered point crushes its way in and grips. For hard brick or concrete, use a masonry nail or a plug and screw instead.

Why are cut clasp nails rectangular?

They are cut from steel plate rather than drawn from wire, so the shank is a tapered rectangle. That shape wedges against the timber fibres and gives the extra holding power.

Do cut clasp nails split wood?

Less than you might expect, because the blunt point crushes rather than wedges the fibres apart. Near an end or edge, or in hardwood, a pilot hole still helps.