摘要 |
<p>A fastener system including a blind stud and a sleeve. The sleeve has a first section (12) abutting a second section. The first section (12) has a smaller outer surface diameter than the second section. A knurled band (22) is formed around the first section beginning at the intersection between the first and second sections. The sleeve has an opening axially through the two sections. The opening has a first larger inner surface which tapers via a frusto-conical surface to a smaller diameter inner surface. The larger diameter inner surface extends from the free end of the sleeve frist section and extends toward the second sections to the frusto-conical surface. The smaller diameter inner surface begins at the free end of the second section and extends toward the first section to the frusto-conical inner surface. The smaller diameter inner surface spans at least a portion and preferably all of the knurled band (22).</p> |