Patent ID: 7520102

Claim:
A method of protecting an anchor bolt from the corrosive effects of a treated wood sill, comprising: a. inserting an anchor bolt through an opening in the treated wood sill that forms a part of a building structure and which lies between a support structure and a series of wall studs; b. inserting a polymeric bushing into the opening and surrounding the anchor bolt with the bushing such that a flange on a first end of the bushing rests on a top surface of the sill and an end of the bushing opposite the flange terminates in the opening short of the bottom of the sill; c. securing a fastener on the anchor bolt and tightening the fastener down to exert a force on the flange; and d. continuing to tighten the fastener and pressing the flange into the top surface of the sill and seating the flange in a depression formed in the top surface of the sill by driving the flange into the top surface of the sill and extending the opposite end of the bushing downwardly to at least the bottom of the sill such that the bushing forms an impervious barrier between the anchor bolt and the treated wood sill.