A hardware apparatus includes a washer/nut member comprising a disc-shaped base plate with a nut-shaped projection extending therefrom, wherein the nut-shaped projection includes a through passage to the disc-shaped base plate and the disc-shaped base plate includes a through opening aligned with the through passage. An insert is positionable within the through passage of the nut-shaped projection, the insert including a disc-shaped flange, a projection at one side of the flange, and a passage through the flange and the projection, wherein the projection is engageable in the through opening, wherein a perimeter shape of the projection is configured to cooperate with a perimeter shape of the through opening to prevent rotation of the insert relative to the washer/nut member.

A spark containment cap for enclosing an end of a fastener protruding from a structure, the enclosed body having a base and a cover portion, the cover portion extending from the base, the base providing an adhering surface for adhering the spark containment cap to a structure, and the base and the cover portion together forming a cavity within the enclosed body inside which the end of a fastener can be enclosed.

An acousto-optic device may include an acousto-optic component carried by a chassis, and a fastener assembly for removably securing a cover to the chassis. The fastener assembly may include a base sleeve having an enlarged head, and a tubular body and extending through a cover passageway. The fastener assembly may include a retainer sleeve having a threaded interior secured to the threaded exterior of the base sleeve to define an anchor member, the anchor member having a threaded interior. The fastener assembly may further include a fastener, a shaft having a threaded exterior opposite the enlarged head and to be threaded through the threaded interior of the anchor member to capture the fastener to the cover and movable through the chassis passageway for removably securing the cover to the chassis.

An installation tool assembly kit for a toilet, comprising an installation wrench and an installation nut, wherein the wrench is configured to be removably coupled to the nut via an upper aperture of the nut, the nut is configured to be threadingly coupled to a flange bolt via a lower aperture of the nut, and the nut upper aperture and nut lower aperture are concentrically aligned. The toilet may be a concealed trap, skirted toilet and/or a pressure-assist toilet.

A fitted bolt connection is provided for connecting at least two components to holes to be matched comprises a fitted bolt having a conical surface for arrangement in a hole in the first component, three or more separate cone segments each for arrangement between the conical surface of the fitted bolt and an inner peripheral wall of the hole in the first component, and clamping bolts each associated with the cone segments, by means of which the cone segments, independently of one another, can each be individually clamped between the conical surface of the fitted bolt and the inner peripheral wall of the hole.

A securement arrangement for introducing a field instrument into a container includes a connection adapter and a sealing element. The field instrument includes a housing and a sensor. The sensor of the field instrument protrudes inwardly into the container, and the field instrument serves for determining and/or monitoring a process variable of a medium in the container. The connection adapter includes a cylindrical basic body, on which a first securement element is arranged for securing the connection adapter to the field instrument. The connection adapter surrounds the field instrument when the connection adapter is secured to the field instrument. A second securement element is also arranged on the connection adapter for securing the connection adapter to a container adapter. The container adapter surrounds the connection adapter when the container adapter is secured to the connection adapter. A first support of the connection adapter accommodates the sealing element.

A blind fastener may include a bolt. The bolt includes a head, a shank coupled to the head, and a number of external threads formed on the shank. The blind fastener may also include a mount coupled to the bolt, and a fastening block coupled to the mount. The mount may include a body, at least one arm extending from the body, and at least one pivot mount formed on and extending from the arm about which the fastening block pivots.

An installation nut includes a body, an upper cover, at least two threaded blocks, and a transmission member. The upper cover is fixedly connected to the body. An inner wall of each of the at least two threaded blocks includes an internal thread, and an outer wall of each of the at least two threaded blocks includes a first inclined surface and a first straight surface. The transmission member is movably disposed between the body and the upper cover. A top surface of the transmission member includes one or more transmission blocks configured to extend out of the upper cover. A lower end of the transmission member includes at least one second straight surface configured to couple with the first straight surfaces and at least one second inclined surface configured to couple with the first inclined surfaces.

An automobile wheel can include an outer rim, a hub, and a plurality of lug accessories. The hub, which is generally at the center of the automobile wheel, can have a plurality of lug holes. The plurality of lug accessories can be partially disposed in some, but not all, of the lug holes while leaving the remaining lug holes open. The open lug holes can receive a threaded stud from an automobile wheel hub assembly when the automobile wheel is mounted to the automobile wheel hub assembly. Each lug accessory can have a lug stud and a lug cap. The lug stud can have a flange and a linear member, with the linear member attached to the flange and extending to a free end. The flange can contact a rear surface of the hub when the linear member is inserted into a lug hole. The lug cap can extend over and couple to an opposite end of the linear member from the flange.

A blind fastener includes a sleeve having a distal end portion and a proximal end portion and defining a bore. The blind fastener also includes a core bolt at least partially received in the bore of the sleeve, the core bolt defining a core bolt axis and including a body having a distal end portion and proximal end portion axially opposed from the distal end portion, wherein the body is tapered from the distal end portion of the body to the proximal end portion of the body such that the core bolt causes radial expansion of the sleeve when the body is urged relative to the sleeve through the bore along the core bolt axis.