Factor. One of the elements, circumstances or influences which contribute to produce a result.
Fence. A term used to designate a metal barrier or guard on a part of a tool.
Fish plate. A pair of plates, usually placed on opposite sides of the pieces to be secured together, and held by cross bolts.
Flare. A pitch; an angle; an inclination.
Flush. Unbroken, or even in surface; on a level with the adjacent surface.
Frog clamping screw. A screw which is designed to hold or adjust two angled pieces.
Fulcrum. That by which a lever is sustained, or on which a lever rests in turning or moving a body.
Fluting. The channel or channels in a body; as the grooves in a column.
Gain. A square or beveled notch or groove cut out of a girder, beam, post or other material, at a corner.
Gambrel. A roof having two different pitches, the upper much greater than the lower.