Abstract: A plug finishing system involves forming a counterbore in a cover board above the head of a fastener as it is driven by a specially constructed driver. A plug, which is dimensioned for the counterbore and has a reduced portion, is inserted into the counterbore and positioned so that its exterior surface is co-planar with the exterior surface of the cover board.

Abstract: A timber fastener and method of manufacturing and utilizing the same wherein the fastener includes a shaft having a center axis, a head end, and a tip end. The shaft has a first threaded portion proximate the tip end and a second threaded portion proximate the head end and having off-timed threads in relation to the first threaded portion. The off-timing of the second threaded portion threads results from such structural features as: a pre-selected defined distance separating the first and second threaded portions; different thread and flank angles; different thread pitches; and/or a different thread direction relative to the first threaded portion.

Abstract: The present invention is a washer typically used in fastening insulation to a roof deck. The washer is secured to the deck by a securing member received through an opening in the washer. The washer is provided with a body having a top surface, a thickness dimension, and bottom surface having a substantially planar region. The body is further provided with an opening sized to permit a securing member to pass therethrough. A plurality of fingers are positioned around the opening on the bottom surface of the body. The fingers extend away from the bottom surface, the fingers being positioned around the opening and having at least a portion that extends over the opening. In yet another embodiment, the present invention is, in combination, a washer and a securing member received in an opening provided in the washer.

Abstract: A swiveling roofing washer for use with a roofing fastener has a plate. The plate defines a centrally positioned fastener opening. The plate further has a bottom surface for engagement to a roofing membrane, and an oppositely positioned top surface. The top surface has a swivel surface portion defining a convex surface adjacent and coaxial with the fastener opening. The swivel surface further defines a fastener head receiving channel adjacent the convex portion and coaxial with the fastener opening for engagement with the head portion of a roofing fastener.