A structural assembly comprising: a first structural member comprising a first side and a second side opposite said first side, and defining a first partial bore extending from said first side to said second side, said first structural member further comprising a first protrusion protruding proximate a periphery of said first partial bore on said first side of said first structural member; a second structural member comprising a first side and a second side opposite said first side, and defining a second partial bore extending from said first side to said second side, said second structural member further comprising a first protrusion protruding proximate a periphery of said second partial bore on said first side of said second structural member, wherein said second partial bore is aligned with said first partial bore along a bore axis to define a through-bore; a first engagement member engaged with both said first protrusion of said first structural member and said first protrusion of said second structural member; and a second engagement member; wherein said first structural member and said second structural member are clamped between said first engagement member and said second engagement member, characterized in that the first structural member further comprises a second protrusion protruding proximate said periphery of said first partial bore on said second side of said first structural member, wherein the second structural member further comprises a second protrusion protruding proximate said periphery of said second partial bore on said second side of said second structural member, and wherein the second engagement member is engaged with both said second protrusion of said first structural member and said second protrusion of said second structural member. a first structural member comprising a first side and a second side opposite said first side, and defining a first partial bore extending from said first side to said second side, said first structural member further comprising a first protrusion protruding proximate a periphery of said first partial bore on said first side of said first structural member; a second structural member comprising a first side and a second side opposite said first side, and defining a second partial bore extending from said first side to said second side, said second structural member further comprising a first protrusion protruding proximate a periphery of said second partial bore on said first side of said second structural member, wherein said second partial bore is aligned with said first partial bore along a bore axis to define a through-bore; a first engagement member engaged with both said first protrusion of said first structural member and said first protrusion of said second structural member; and a second engagement member; wherein said first structural member and said second structural member are clamped between said first engagement member and said second engagement member, characterized in that the first structural member further comprises a second protrusion protruding proximate said periphery of said first partial bore on said second side of said first structural member, wherein the second structural member further comprises a second protrusion protruding proximate said periphery of said second partial bore on said second side of said second structural member, and wherein the second engagement member is engaged with both said second protrusion of said first structural member and said second protrusion of said second structural member.