Systems and methods for a mounting assembly in accordance with embodiments of the invention are disclosed. In one embodiment a mounting assembly includes a first mounting piece having a base portion and a first protruding portion. The embodiment may further include an interchangeable mounting piece having a second protruding portion such that the interchangeable mounting piece is configured slide inside the first protruding portion of the first mounting piece. The embodiment may further include pin member may be configured to be inserted in the first pair of apertures and the second pair of apertures when the first mounting piece and the interchangeable mounting piece are in a mated position. The embodiment may further include a second interchangeable mounting piece configured to be replaceable with the interchangeable mounting piece.

Systems and methods for a mounting assembly in accordance with embodiments of the invention are disclosed. In one embodiment a mounting assembly includes a first mounting piece having a base portion and a first protruding portion. The embodiment may further include an interchangeable mounting piece having a second protruding portion such that the interchangeable mounting piece is configured slide inside the first protruding portion of the first mounting piece. The embodiment may further include pin member may be configured to be inserted in the first pair of apertures and the second pair of apertures when the first mounting piece and the interchangeable mounting piece are in a mated position. The embodiment may further include a second interchangeable mounting piece configured to be replaceable with the interchangeable mounting piece.

A manufacturing method includes a joining step of abutting and joining an end surface of a tube main body and a projecting portion of a head member by frictional welding in a state in which a through hole of the tube main body and the projecting portion of the head member are fitted with a fitting clearance. In the joining step, flow material which is practically flowed from an end surface of the tube main body and the flange portion of the head member is filled in the fitting clearance from the root side until the tip portion is located within the range in the direction of the rotation axis, thereby joining between a non-contact portion and the tube main body and between an inclined inner peripheral surface of the tube main body and an outer peripheral surface of the projecting portion by the flow material.

A manufacturing method includes a joining step of abutting and joining an end surface of a tube main body and a projecting portion of a head member by frictional welding in a state in which a through hole of the tube main body and the projecting portion of the head member are fitted with a fitting clearance. In the joining step, flow material which is practically flowed from an end surface of the tube main body and the flange portion of the head member is filled in the fitting clearance from the root side until the tip portion is located within the range in the direction of the rotation axis, thereby joining between a non-contact portion and the tube main body and between an inclined inner peripheral surface of the tube main body and an outer peripheral surface of the projecting portion by the flow material.

Provided in this disclosure is a method for manufacturing a customizable holster. Steps are provided of molding inner holster components, including molding internal surfaces that conform to shapes of respective portions of a desired firearm design. Other substeps include molding external surfaces that conform to the shape of portions of an external mating surface of an inner holster. The inner holster components are mated to form an inner holster having an internal contact surface that conforms to the firearm design, to securely receive and retain a respective firearm within the inner holster. An outer holster is molded having an interior defined by an internal mating surface that conforms with the external mating surface of the inner holster. The inner holster is then mated to the outer holster such that the external mating surface of the inner holster is received within the internal mating surface of the outer holster.

Provided in this disclosure is a method for manufacturing a customizable holster. Steps are provided of molding inner holster components, including molding internal surfaces that conform to shapes of respective portions of a desired firearm design. Other substeps include molding external surfaces that conform to the shape of portions of an external mating surface of an inner holster. The inner holster components are mated to form an inner holster having an internal contact surface that conforms to the firearm design, to securely receive and retain a respective firearm within the inner holster. An outer holster is molded having an interior defined by an internal mating surface that conforms with the external mating surface of the inner holster. The inner holster is then mated to the outer holster such that the external mating surface of the inner holster is received within the internal mating surface of the outer holster.

A beam is provided with hole patterns allowing for increased configurations and tolerances for assembly into a structure. The beam has four side plates and two end plates. The four side plates can have any modular length that is determined by a number of repeating sections. Oppositely oriented side plates have sections with the same hole pattern. In one embodiment, two side plates have hole pattern A and the two other side plates have hole pattern B. The end plates have hole pattern C. Hole pattern A has outer corner and side holes that are straight slots with a longitudinal axis oriented perpendicular to end plate planes. Hole pattern B has outer corner and side holes that are straight slots with a longitudinal axis that is oriented parallel to the end plate planes. Hole pattern C has curved slots that lie on a perimeter of one of two circles.

A beam is provided with hole patterns allowing for increased configurations and tolerances for assembly into a structure. The beam has four side plates and two end plates. The four side plates can have any modular length that is determined by a number of repeating sections. Oppositely oriented side plates have sections with the same hole pattern. In one embodiment, two side plates have hole pattern A and the two other side plates have hole pattern B. The end plates have hole pattern C. Hole pattern A has outer corner and side holes that are straight slots with a longitudinal axis oriented perpendicular to end plate planes. Hole pattern B has outer corner and side holes that are straight slots with a longitudinal axis that is oriented parallel to the end plate planes. Hole pattern C has curved slots that lie on a perimeter of one of two circles.

A connector assembly, having an upper connector coupled to a lower connector and a gusset plate sandwiched between the upper and lower connectors. Also, disclosed is a hoistable connector assembly, a lifting frame assembly, a coupling system for modular frame units, a method for assembling a module unit using the connector assembly, and a modular frame unit and building having the connector assembly.

A connector assembly, having an upper connector coupled to a lower connector and a gusset plate sandwiched between the upper and lower connectors. Also, disclosed is a hoistable connector assembly, a lifting frame assembly, a coupling system for modular frame units, a method for assembling a module unit using the connector assembly, and a modular frame unit and building having the connector assembly.