A fluid end having its fluid flow bores sealed without threading a retaining nut into the walls of each bore. The fluid ends may be assembled using a plurality of different kits that each comprise a fluid end body, a component, a retainer element, and a fastening system. The retainer element holds the component within each of the bores formed in the fluid end body and the fastening system secures the retainer element to the body. The fastening system comprises a plurality of externally threaded studs, washers and nuts in some embodiments. In other embodiments, the fastening system comprises a plurality of screws.

A mounting bolt for a sub-frame is disclosed. A mounting bolt for a sub-frame that is configured to a sub-frame to a front side member of a vehicle according to one or a plurality of exemplary embodiments of the present invention may include a bolt body that is inserted into a through-hole of a mounting bracket that is fixed to the front side member and joined to the mounting bracket through a head portion, and a support body that has a cylindrical shape, is friction-welded to a center of an upper surface of a head portion of the bolt body along one line, and of which an upper end is joined to the front side member.

A mounting bolt for a sub-frame is disclosed. A mounting bolt for a sub-frame that is configured to a sub-frame to a front side member of a vehicle according to one or a plurality of exemplary embodiments of the present invention may include a bolt body that is inserted into a through-hole of a mounting bracket that is fixed to the front side member and joined to the mounting bracket through a head portion, and a support body that has a cylindrical shape, is friction-welded to a center of an upper surface of a head portion of the bolt body along one line, and of which an upper end is joined to the front side member.

By changing the timing of applying a heat treatment, a high-strength aluminum based alloy-made fastening part having an unprecedented tensile strength or other strength property and a method for manufacturing of the same are provided. The method is characterized in that an aluminum based alloy-made material is subjected to a solution treatment and is then age-hardened; work hardening is further applied to a shaft portion by drawing thereof in a heading process; and the shaft portion is thereafter subjected to a process of rolling male threads.

By changing the timing of applying a heat treatment, a high-strength aluminum based alloy-made fastening part having an unprecedented tensile strength or other strength property and a method for manufacturing of the same are provided. The method is characterized in that an aluminum based alloy-made material is subjected to a solution treatment and is then age-hardened; work hardening is further applied to a shaft portion by drawing thereof in a heading process; and the shaft portion is thereafter subjected to a process of rolling male threads.

A screw nail includes a nail shaft portion extending along one direction, and a head portion whose diameter is enlarged along other direction orthogonal to an extension direction. A sharp tip end portion is formed on one end side of the nail shaft portion, and the head portion is formed at an end portion on the other end side. The nail shaft portion is formed with a screw thread, and the head portion is formed with an engaging portion capable of engaging with a rotary tool. A convex portion protruding along an axis direction of the nail shaft portion is formed on an end surface of the head portion. A concave portion that is concave with respect to the convex portion is formed between the convex portion and the engaging portion. A virtual plane specified by vertexes of the convex portion is a plane orthogonal to the axis direction.

A wall-mountable shelf includes an apron and a ledge. The apron has a rear surface configured to abut against a wall and a front surface opposite the rear surface, the front surface having at least one recess having a floor and an end wall that extends from the floor to the front surface. The ledge has a rear edge, an upper surface, and a lower surface. The ledge is positioned within the recess of the apron so that the rear edge of the ledge interfaces with the floor of the recess of the apron and a rear portion of at least one of the upper and lower surfaces of the ledge interfaces with the end wall of the recess. The apron and the ledge may be formed from a brittle material. The interfacing surfaces of the ledge and the apron may be adhesively bonded together.

A sensorized fastener, in particular a screw, having a shank with a cavity laterally delimited by a lateral surface and extending between an opening, through which the cavity faces the outside of the fastening body, and an end portion. The sensorized fastener has a pin with a support formed by a head, a foot and an intermediate portion, which is interposed between the head and the foot, and a sensing element which is applied to the intermediate portion. The pin is inserted, at least partially, through the opening within the cavity, so that the foot of the pin is fixed to the end portion of the cavity.

A sensorized fastener, in particular a screw, having a shank with a cavity laterally delimited by a lateral surface and extending between an opening, through which the cavity faces the outside of the fastening body, and an end portion. The sensorized fastener has a pin with a support formed by a head, a foot and an intermediate portion, which is interposed between the head and the foot, and a sensing element which is applied to the intermediate portion. The pin is inserted, at least partially, through the opening within the cavity, so that the foot of the pin is fixed to the end portion of the cavity.

A faucet locking mechanism, a faucet assembly and a faucet mounting structure comprising a connecting sleeve, a locking sleeve, a sliding frame and a screw element; wherein the locking sleeve is provided with a plurality of flexible retainers arranged around the connecting sleeve at intervals, and the sliding frame is slidably assembled around the plurality of the flexible retainers; the screw element passes through the sliding frame and the locking sleeve and is capable of driving the sliding frame to press and separate from the flexible retainers; retainer ends of the plurality of flexible retainers are locked with the connecting sleeve respectively when the sliding frame presses the flexible retainers.