SpiralrillenNägel

SpiralrillenNägel, often translated as spiral-grooved nails, are a type of fastener characterized by a helical pattern of grooves running along their shank. These grooves are designed to increase the nail's holding power in wood and other materials. Unlike smooth shank nails, which rely primarily on friction, spiral rillenNägel engage the material more effectively due to the twisting action created by the grooves as the nail is driven in. This enhanced grip makes them particularly useful in applications where shear and withdrawal resistance are important.

The manufacturing process involves rolling or pressing the spiral pattern onto the nail shank after it has been formed. The depth, pitch, and shape of the grooves can vary depending on the intended use and the material being fastened. Spiral rillenNägel are commonly used in construction, particularly for framing, subflooring, and applications where strong, long-lasting connections are required. They are often favored over smooth shank nails for structural integrity. The increased holding power can also reduce the likelihood of loosening over time due to vibration or expansion and contraction of the material.