Patent ID: 8931232
Filing Date: 2015-01-13
Classification: E04D,F16B

Abstract:
1. A method for fastening a corrugated metal roof deck comprising: depositing a washer consisting of an: expanse of metal material having a circular outer periphery if rendered flat with a first surface and a second surface remaining substantially the same distance from each other throughout the expanse of the washer; a single opening in the expanse of material of the washer dimensioned to closely receive a fastener therethrough, said single opening being defined by a flat area of the washer, a relatively upper surface of the flat area running substantially parallel to a relatively lower surface of the flat area; two bent areas disposed out of contact with each other, said two bent areas immediately adjoining and radially outwardly disposed of the flat area, the two bent areas disposing both the first and second surface of the washer out of plane with the flat area of the washer such that extended planes of said two bent areas intersect said plane of said flat area, said two bent area causing said washer to substantially nest with, and be used in conjunction with corrugations of the corrugated metal roof deck, wherein an entire major surface of the entire washer is configured to lie flush against of the corrugated metal roof deck; driving said fastener through a type B corrugated metal roof deck into a structural joist; orienting said washer complementarily to said roof deck such that said bent areas of the washer extend away from floors of the corrugations along and in contact with trough walls of the corrugations; and securing said washer and roof deck by tightening said fastener against the structural underlying joist.