Patent ID: 8439618

Claim:
A fastener system comprising: a block comprising a bore, said bore having a diameter D, an angled seat at one end of the bore, and a threaded portion, the block having a first coefficient of thermal expansion; a fastener having an axial centerline, a seating surface angled with respect to the axial centerline at an angle α, said seating surface including a portion that contacts the angled seat of the block and a portion that extends into the bore, a threaded connecting portion spaced from the seating surface and threadedly engaging the threaded bore portion, and a clamped portion comprising the portion of the fastener between but not directly engaging said bore threaded portion and said bore angled seat, said clamped portion having a length L, the fastener having a second coefficient of thermal expansion, wherein: the length L spans from where the seating surface of the fastener first extends into the bore to the portion of the fastener that first directly engages the bore threaded portion, α is equal to arctan (D/(2L)) and, the first coefficient of thermal expansion is greater than the second coefficient of thermal expansion.