An engine cover of an outboard motor includes an upper cover and a lower cover that are vertically separable. A fixing belt capable of fixing the upper cover and the lower cover to each other is attached to the rear end of the engine cover. The upper cover includes a belt holding portion that holds the fixing belt. The belt holding portion includes a holding frame that forms a belt insertion hole. A head portion of the fixing belt includes a pair of contact portions that come into contact with upper surfaces of a pair of first frame portions of the holding frame.

An engine cover of an outboard motor includes an upper cover and a lower cover that are vertically separable. A fixing belt capable of fixing the upper cover and the lower cover to each other is attached to the rear end of the engine cover. The upper cover includes a belt holding portion that holds the fixing belt. The belt holding portion includes a holding frame that forms a belt insertion hole. A head portion of the fixing belt includes a pair of contact portions that come into contact with upper surfaces of a pair of first frame portions of the holding frame.

A method for securing a first part to a second part where the first part has a locking oblong hole. The method includes passing a locking threaded rod through the locking oblong hole and into the second part. The locking threaded rod is oversized with respect to a width of the locking oblong hole such that the locking threaded rod widens the locking oblong hole as the locking threaded rod is passing through the locking oblong hole.

A threaded fastener system including a female threaded part and a male threaded dual driven fastener. The dual driven fastener has a shaft having a longitudinal axis, a portion of the shaft having a male threaded feature that engages the female threaded part. The male threaded feature having a major thread diameter and a minor thread diameter. There is a first driving feature at a first end of the shaft that is larger than the major thread diameter relative to the longitudinal axis and a second driving feature at a second end of the shaft that is equal to or smaller than the minor thread diameter. The driving features allow torquing of the dual driven fastener from either end.

A threaded fastener system including a female threaded part and a male threaded dual driven fastener. The dual driven fastener has a shaft having a longitudinal axis, a portion of the shaft having a male threaded feature that engages the female threaded part. The male threaded feature having a major thread diameter and a minor thread diameter. There is a first driving feature at a first end of the shaft that is larger than the major thread diameter relative to the longitudinal axis and a second driving feature at a second end of the shaft that is equal to or smaller than the minor thread diameter. The driving features allow torquing of the dual driven fastener from either end.

The invention relates to a method for installing metallic fastener (10; 40) for the interference fit assembly of at least two structural elements (20, 22) comprising a through hole, the fastener comprising an enlarged head (12; 42), a shaft (14; 44) having an external diameter before installation that is greater than an internal diameter of the hole, said shaft comprising a conductive surface (26; 56). Before installation, at least the conductive surface (26; 56) is coated with a lubricating layer (30), which comprises a mixture of at least one polyolefin and one polytetrafluoroethylene, for example, having sufficient adherence to prevent its abrasion by manual manipulation of the fastener and being weak enough to be at least partly stripped from the conductive surface during the interference fit assembly of the fastener. The invention is applicable to the assembly of aircraft structures.

The invention relates to a method for installing metallic fastener (10; 40) for the interference fit assembly of at least two structural elements (20, 22) comprising a through hole, the fastener comprising an enlarged head (12; 42), a shaft (14; 44) having an external diameter before installation that is greater than an internal diameter of the hole, said shaft comprising a conductive surface (26; 56). Before installation, at least the conductive surface (26; 56) is coated with a lubricating layer (30), which comprises a mixture of at least one polyolefin and one polytetrafluoroethylene, for example, having sufficient adherence to prevent its abrasion by manual manipulation of the fastener and being weak enough to be at least partly stripped from the conductive surface during the interference fit assembly of the fastener. The invention is applicable to the assembly of aircraft structures.

A system for fastening a component on a fastening projection. A fastening device has a fastening element with a holding receptacle with holding means to hold the fastening projection and positive-locking elements. The component or an intermediate element arranged on the component has corresponding positive-locking elements. Prestressing means prestress the mutually corresponding positive-locking elements into positive engagement in a premounted position of the fastening element on the component so that lateral displacement of the fastening element relative to the component along a first direction of movement is prevented. The holding receptacle has a centering opening at least partially tapering in the insertion direction of the fastening projection so that the fastening projection is centered with respect to the holding receptacle of the fastening element with temporary suppression of positive locking of the mutually corresponding positive-locking elements and with lateral displacement of the fastening element along the first direction.

A cable tray assembly includes first and second cable tray sections. Each cable tray section included a rail including a vertical web, an upper flange, and a lower flange. Each upper flange includes an outboard portion having a downwardly extending tab forming a groove extending along the upper flange. A splice plate assembly connects the first and second cable tray sections. The splice plate assembly includes a first splice plate configured to be retained in the groove extending along the upper flange of the first cable tray section. A second splice plate is configured to be retained in the groove extending along the upper flange of the second cable tray section. The first and second splice plates each define a fastener opening. The fastener openings are alignable with one another and configured to receive a fastener to connect the first and second cable tray sections when the splice plates are attached to the respective cable tray sections.

A cable tray assembly includes first and second cable tray sections. Each cable tray section included a rail including a vertical web, an upper flange, and a lower flange. Each upper flange includes an outboard portion having a downwardly extending tab forming a groove extending along the upper flange. A splice plate assembly connects the first and second cable tray sections. The splice plate assembly includes a first splice plate configured to be retained in the groove extending along the upper flange of the first cable tray section. A second splice plate is configured to be retained in the groove extending along the upper flange of the second cable tray section. The first and second splice plates each define a fastener opening. The fastener openings are alignable with one another and configured to receive a fastener to connect the first and second cable tray sections when the splice plates are attached to the respective cable tray sections.