Patent ID: 8007206

Claim:
A low profile roof bolt head comprising: a first section adapted for insertion into a roof hole, said first section having a first end surface of the roof bolt head; a second section adapted for accommodating a tightening tool, said second section having a second end surface of the roof bolt head; and a first throughhole portion extending through said first section and forming an opening in said first end surface for accommodating a first bolt portion; a second throughhole portion extending through said second section and forming an opening in said second end surface for accommodating a second bolt portion; said first section having an end portion opposite said first end surface, said first section tapering in outer cross-sectional dimension from said end portion to said first end surface; wherein said second section has a roof plate contacting portion disposed adjacent said end portion of said first section for contacting a roof plate upon initial insertion of said first section into the roof hole and having a diameter larger than the outer cross-sectional dimension of said first section; wherein said second section has a height dimension, in parallel to a central longitudinal axis of said roof bolt head, that is less than or equal to 0.75 inch; wherein said first and second sections have a combined height dimension, in parallel to the central longitudinal axis of said roof bolt head, that is less than or equal to 1.75 inches; wherein said first throughhole portion and said second throughhole portion form a common throughhole extending through said first and second sections; and wherein said throughhole has a constant slope of 3° from vertical extending from said first end surface to said second end surface.