The following terms define Building and Machine Partshaft: handle, especially of knife or ax. handle: rod, knob, part to be grasped by hand. handlebar: rod or bar with handle at each end. hanger: iron strap used to suspend pipes and joists. hank: coil, loop, or ring, especially of rope. hardware: metal fittings and utensils for building construction. harness: assemblage of interconnected straps that restrain or fasten. H-beam: long iron or steel I-beam with wide flanges. head: top of door or window frame. header: horizontal support that spans an opening in frame of wall or floor. headpost: post at top of part. herringbone bridging: cross bridging. hilt: handle, especially of knife or sword. hinge: swiveling metal joint that fastens swinging element to stable support: butt, spring, strap, T-hinge. hip rafter: diagonal rafter extending from ridgepole to corner intersection of top plates of two walls. hoop: circular binding strip. housing: frame or covering for part: recess in piece of wood for insertion of another piece. hub: center part, especially of wheel where it's fastened to axle. Our online catalog features over 24,000 home-construction items. Each page below contains a list of 100 individual items: