IMPROVED FASTENERS AND METHODS OF MAKING SAME

摘要

A fastener comprising a head (1), shaft (2) and tip (3), the tip having an indent (4) formed therein such that the rim of the indent portion forms a cutting edge (5), and methods of making same is provided. The invention is particularly suitable for use with nails but is also useful for fasteners such as screws and spikes. The indent (4) and cutting edge (5) of the tip (3) provide for a fastener which requires less force to be driven into isotropic materials such as concrete and anisotropic materials such as wood and exhibits greater holding power than conventional fasteners such as diamond pointed nails. The use of the fastener of the invention in association with wood reduces the chances of the wood splitting as the fastener is being driven.