Undercut screw and matching bit
作者： Richard D. Fuerle
DOI:
关键词: Plane (geometry) 、 Structural engineering 、 Head (vessel) 、 Fastener 、 Longitudinal axis 、 Geometry 、 Bit (horse) 、 Geology 、 Undercut 、 Threaded fastener
摘要: A threaded fastener, such as a screw or bolt, has central longitudinal axis in z-axis direction. The fastener head and shaft. an overhanging periphery x-y plane at least two slots, evenly-spaced apart, that extend completely through the periphery. Each slot sloped surface undercuts same tangential is turned by using bit shank fixed to end portion legs, from leg extends
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