Patent ID: 6250864
Filing Date: 2001-06-26
Classification: F16B

Abstract:
A first L-shaped segment which can be combined with a second L-shaped segment to form a fastener having a T-shaped structure, the T-shaped structure comprisinga substantially flat head, the substantially flat head having a hole engageable to an expansion member, the substantially flat head comprising a first single-layer head portion being part of the first L-shaped segment and a second single-layer head portion being part of the second L-shaped segment, the first single-layer head portion having a first inward extension, and the second single-layer head portion having a second inward extension;a double-layer neck portion having an opening comprising a funnel configuration, and extending from the substantially flat head in a direction substantially perpendicular to said substantially flat head; anda double-layer leg portion extending from the double-layer neck portion in a direction substantially parallel to said double-layer neck portion.