Patent ID: 8888425
Filing Date: 2014-11-18
Classification: F16B,Y10T

Abstract:
1. A fastener comprising: a deformable sleeve comprising a bore, a shoulder in said bore, a non-deformable portion and a deformable portion; a bolt comprising a bolt head and a external-threaded portion; a nut comprising a internal-threaded portion threadingly engaged with said external-threaded portion; wherein said bolt passes through said bore with said deformable sleeve positioned between said bolt head and said nut; wherein said deformable sleeve is constructed and arranged to be compressed upon application of a relative tightening of said bolt through said nut to bulb said deformable portion to form a bulbed head; and wherein said shoulder is constructed and arranged to block further compression of said deformable portion when said bulbed head is substantially completely formed when said nut abuts said shoulder.